Disable rectangle tool

* Use kcl_input! macro

These two lines are equivalent:
`kcl_input!("foo")`
`include_str!("inputs/foo.kcl")`

Simplifies the tests.

* Move more KCL test programs into their own files

* Move twenty-twenty asserts into their own function

* Move more asserts into 'assert_out'

docs/kcl/angleToMatchLengthX.md

@@ -9,7 +9,7 @@ Returns the angle to match the given length for x.
 
 
 ```js
-angleToMatchLengthX(segment_name: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
+angleToMatchLengthX(tag: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -28,9 +28,95 @@ const extrusion = extrude(5, sketch001)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 }
 ```
@@ -38,7 +124,7 @@ const extrusion = extrude(5, sketch001)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -80,15 +166,21 @@ const extrusion = extrude(5, sketch001)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -106,7 +198,7 @@ const extrusion = extrude(5, sketch001)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -257,6 +349,38 @@ const extrusion = extrude(5, sketch001)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angleToMatchLengthY.md

@@ -9,7 +9,7 @@ Returns the angle to match the given length for y.
 
 
 ```js
-angleToMatchLengthY(segment_name: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
+angleToMatchLengthY(tag: TagIdentifier, to: number, sketch_group: SketchGroup) -> number
 ```
 
 ### Examples
@@ -32,9 +32,95 @@ const extrusion = extrude(5, sketch001)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 }
 ```
@@ -42,7 +128,7 @@ const extrusion = extrude(5, sketch001)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -84,15 +170,21 @@ const extrusion = extrude(5, sketch001)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -110,7 +202,7 @@ const extrusion = extrude(5, sketch001)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -261,6 +353,38 @@ const extrusion = extrude(5, sketch001)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLine.md

@@ -33,7 +33,7 @@ const example = extrude(10, exampleSketch)
 * `data`: `AngledLineData` - Data to draw an angled line. (REQUIRED)
 ```js
 {
-	// The angle of the line.
+	// The angle of the line (in degrees).
 	angle: number,
 	// The length of the line.
 	length: number,
@@ -43,7 +43,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -85,15 +85,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -111,7 +117,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -262,6 +268,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -417,7 +455,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -459,15 +497,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -485,7 +529,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -636,6 +680,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLineOfXLength.md

@@ -32,7 +32,7 @@ const extrusion = extrude(10, sketch001)
 * `data`: `AngledLineData` - Data to draw an angled line. (REQUIRED)
 ```js
 {
-	// The angle of the line.
+	// The angle of the line (in degrees).
 	angle: number,
 	// The length of the line.
 	length: number,
@@ -42,7 +42,7 @@ const extrusion = extrude(10, sketch001)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -84,15 +84,21 @@ const extrusion = extrude(10, sketch001)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -110,7 +116,7 @@ const extrusion = extrude(10, sketch001)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -261,6 +267,38 @@ const extrusion = extrude(10, sketch001)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -416,7 +454,7 @@ const extrusion = extrude(10, sketch001)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -458,15 +496,21 @@ const extrusion = extrude(10, sketch001)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -484,7 +528,7 @@ const extrusion = extrude(10, sketch001)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -635,6 +679,38 @@ const extrusion = extrude(10, sketch001)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLineOfYLength.md

@@ -34,7 +34,7 @@ const example = extrude(10, exampleSketch)
 * `data`: `AngledLineData` - Data to draw an angled line. (REQUIRED)
 ```js
 {
-	// The angle of the line.
+	// The angle of the line (in degrees).
 	angle: number,
 	// The length of the line.
 	length: number,
@@ -44,7 +44,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -86,15 +86,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -112,7 +118,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -263,6 +269,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -418,7 +456,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -460,15 +498,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -486,7 +530,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -637,6 +681,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLineThatIntersects.md

@@ -22,7 +22,7 @@ const exampleSketch = startSketchOn('XZ')
   |> lineTo([0, 20], %)
   |> angledLineThatIntersects({
        angle: 80,
-       intersectTag: 'lineToIntersect',
+       intersectTag: lineToIntersect,
        offset: 10
      }, %)
   |> close(%)
@@ -41,6 +41,92 @@ const example = extrude(10, exampleSketch)
 	angle: number,
 	// The tag of the line to intersect with.
 	intersectTag: {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 },
 	// The offset from the intersecting line.
@@ -50,7 +136,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -92,15 +178,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -118,7 +210,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -269,6 +361,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -424,7 +548,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -466,15 +590,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -492,7 +622,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -643,6 +773,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLineToX.md

@@ -41,7 +41,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -83,15 +83,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -109,7 +115,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -260,6 +266,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -415,7 +453,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -457,15 +495,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -483,7 +527,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -634,6 +678,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/angledLineToY.md

@@ -41,7 +41,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -83,15 +83,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -109,7 +115,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -260,6 +266,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -415,7 +453,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -457,15 +495,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -483,7 +527,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -634,6 +678,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/arc.md

@@ -19,8 +19,8 @@ const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([10, 0], %)
   |> arc({
-       angle_start: 0,
-       angle_end: 280,
+       angleStart: 0,
+       angleEnd: 280,
        radius: 16
      }, %)
   |> close(%)
@@ -34,9 +34,9 @@ const exampleSketch = startSketchOn('XZ')
 ```js
 {
 	// The end angle.
-	angle_end: number,
+	angleEnd: number,
 	// The start angle.
-	angle_start: number,
+	angleStart: number,
 	// The radius.
 	radius: number,
 } |
@@ -52,7 +52,7 @@ const exampleSketch = startSketchOn('XZ')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -94,15 +94,21 @@ const exampleSketch = startSketchOn('XZ')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -120,7 +126,7 @@ const exampleSketch = startSketchOn('XZ')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -271,6 +277,38 @@ const exampleSketch = startSketchOn('XZ')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -426,7 +464,7 @@ const exampleSketch = startSketchOn('XZ')
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -468,15 +506,21 @@ const exampleSketch = startSketchOn('XZ')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -494,7 +538,7 @@ const exampleSketch = startSketchOn('XZ')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -645,6 +689,38 @@ const exampleSketch = startSketchOn('XZ')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/bezierCurve.md

@@ -47,7 +47,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -89,15 +89,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -115,7 +121,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -266,6 +272,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -421,7 +459,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -463,15 +501,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -489,7 +533,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -640,6 +684,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/chamfer.md

@@ -31,10 +31,10 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
   |> chamfer({
        length: chamferLength,
        tags: [
-         getNextAdjacentEdge(edge1, %),
-         getNextAdjacentEdge(edge2, %),
-         getNextAdjacentEdge(edge3, %),
-         getNextAdjacentEdge(edge4, %)
+         getNextAdjacentEdge(edge1),
+         getNextAdjacentEdge(edge2),
+         getNextAdjacentEdge(edge3),
+         getNextAdjacentEdge(edge4)
        ]
      }, %)
 ```
@@ -51,6 +51,92 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	// The tags of the paths you want to chamfer.
 	tags: [uuid |
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 }],
 }
@@ -63,15 +149,21 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -89,7 +181,7 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -131,15 +223,21 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -191,6 +289,38 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -364,6 +494,38 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```
@@ -387,15 +549,21 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -413,7 +581,7 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -455,15 +623,21 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -515,6 +689,38 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -688,6 +894,38 @@ const mountingPlate = extrude(thickness, mountingPlateSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```

docs/kcl/circle.md

@@ -82,15 +82,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -108,7 +114,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -259,6 +265,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -286,7 +324,7 @@ const example = extrude(5, exampleSketch)
 },
 } |
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -328,15 +366,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -388,6 +432,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -543,7 +619,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -585,15 +661,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -611,7 +693,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -762,6 +844,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/close.md

@@ -42,7 +42,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -84,15 +84,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -110,7 +116,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -261,6 +267,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -416,7 +454,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -458,15 +496,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -484,7 +528,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -635,6 +679,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/extrude.md

@@ -19,8 +19,8 @@ const example = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([10, 0], %)
   |> arc({
-       angle_end: 0,
-       angle_start: 120,
+       angleStart: 120,
+       angleEnd: 0,
        radius: 5
      }, %)
   |> line([5, 0], %)
@@ -41,8 +41,8 @@ const example = startSketchOn('XZ')
 const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([-10, 0], %)
   |> arc({
-       angle_end: -60,
-       angle_start: 120,
+       angleStart: 120,
+       angleEnd: -60,
        radius: 5
      }, %)
   |> line([10, 0], %)
@@ -67,7 +67,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group_set`: `SketchGroupSet` - A sketch group or a group of sketch groups. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -109,15 +109,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -135,7 +141,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -286,6 +292,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -441,15 +479,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -467,7 +511,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -509,15 +553,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -569,6 +619,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -743,6 +825,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 } |
 {

docs/kcl/helix.md

@@ -19,10 +19,9 @@ const part001 = startSketchOn('XY')
   |> circle([5, 5], 10, %)
   |> extrude(10, %)
   |> helix({
-       angle_start: 0,
+       angleStart: 0,
        ccw: true,
-       revolutions: 16,
-       angle_start: 0
+       revolutions: 16
      }, %)
 ```
 
@@ -34,7 +33,7 @@ const part001 = startSketchOn('XY')
 ```js
 {
 	// Start angle (in degrees).
-	angle_start: number,
+	angleStart: number,
 	// Is the helix rotation counter clockwise? The default is `false`.
 	ccw: string,
 	// Length of the helix. If this argument is not provided, the height of the extrude group is used.
@@ -51,15 +50,21 @@ const part001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -77,7 +82,7 @@ const part001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -119,15 +124,21 @@ const part001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -179,6 +190,38 @@ const part001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -352,6 +395,38 @@ const part001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```
@@ -366,15 +441,21 @@ const part001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -392,7 +473,7 @@ const part001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -434,15 +515,21 @@ const part001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -494,6 +581,38 @@ const part001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -667,6 +786,38 @@ const part001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```

docs/kcl/hole.md

@@ -53,7 +53,7 @@ const example = extrude(1, exampleSketch)
 * `hole_sketch_group`: `SketchGroupSet` - A sketch group or a group of sketch groups. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -95,15 +95,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -121,7 +127,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -272,6 +278,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -419,7 +457,7 @@ const example = extrude(1, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -461,15 +499,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -487,7 +531,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -638,6 +682,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -784,7 +860,7 @@ const example = extrude(1, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -826,15 +902,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -852,7 +934,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -1003,6 +1085,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/index.md

@@ -20,6 +20,11 @@ layout: manual
 * [`angledLineToY`](kcl/angledLineToY)
 * [`arc`](kcl/arc)
 * [`asin`](kcl/asin)
+* [`assert`](kcl/assert)
+* [`assertGreaterThan`](kcl/assertGreaterThan)
+* [`assertGreaterThanOrEq`](kcl/assertGreaterThanOrEq)
+* [`assertLessThan`](kcl/assertLessThan)
+* [`assertLessThanOrEq`](kcl/assertLessThanOrEq)
 * [`atan`](kcl/atan)
 * [`bezierCurve`](kcl/bezierCurve)
 * [`ceil`](kcl/ceil)
@@ -31,13 +36,13 @@ layout: manual
 * [`extrude`](kcl/extrude)
 * [`fillet`](kcl/fillet)
 * [`floor`](kcl/floor)
-* [`getEdge`](kcl/getEdge)
 * [`getNextAdjacentEdge`](kcl/getNextAdjacentEdge)
 * [`getOppositeEdge`](kcl/getOppositeEdge)
 * [`getPreviousAdjacentEdge`](kcl/getPreviousAdjacentEdge)
 * [`helix`](kcl/helix)
 * [`hole`](kcl/hole)
 * [`import`](kcl/import)
+* [`int`](kcl/int)
 * [`lastSegX`](kcl/lastSegX)
 * [`lastSegY`](kcl/lastSegY)
 * [`legAngX`](kcl/legAngX)
@@ -57,6 +62,7 @@ layout: manual
 * [`patternLinear3d`](kcl/patternLinear3d)
 * [`patternTransform`](kcl/patternTransform)
 * [`pi`](kcl/pi)
+* [`polar`](kcl/polar)
 * [`pow`](kcl/pow)
 * [`profileStart`](kcl/profileStart)
 * [`profileStartX`](kcl/profileStartX)

docs/kcl/lastSegX.md

@@ -33,7 +33,7 @@ const example = extrude(5, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -75,15 +75,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -101,7 +107,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -252,6 +258,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/lastSegY.md

@@ -33,7 +33,7 @@ const example = extrude(5, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -75,15 +75,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -101,7 +107,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -252,6 +258,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/line.md

@@ -46,7 +46,7 @@ const example = extrude(5, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -88,15 +88,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -114,7 +120,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -265,6 +271,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -420,7 +458,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -462,15 +500,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -488,7 +532,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -639,6 +683,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/lineTo.md

@@ -33,7 +33,7 @@ const example = extrude(5, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -75,15 +75,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -101,7 +107,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -252,6 +258,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -407,7 +445,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -449,15 +487,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -475,7 +519,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -626,6 +670,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/patternCircular2d.md

@@ -51,7 +51,7 @@ const example = extrude(1, exampleSketch)
 * `sketch_group_set`: `SketchGroupSet` - A sketch group or a group of sketch groups. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -93,15 +93,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -119,7 +125,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -270,6 +276,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/patternCircular3d.md

@@ -55,15 +55,21 @@ const example = extrude(-5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -81,7 +87,7 @@ const example = extrude(-5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -123,15 +129,21 @@ const example = extrude(-5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -183,6 +195,38 @@ const example = extrude(-5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -357,6 +401,38 @@ const example = extrude(-5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 } |
 {

docs/kcl/patternLinear2d.md

@@ -44,7 +44,7 @@ const example = extrude(1, exampleSketch)
 * `sketch_group_set`: `SketchGroupSet` - A sketch group or a group of sketch groups. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -86,15 +86,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -112,7 +118,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -263,6 +269,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/patternLinear3d.md

@@ -53,15 +53,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -79,7 +85,7 @@ const example = extrude(1, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -121,15 +127,21 @@ const example = extrude(1, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -181,6 +193,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -355,6 +399,38 @@ const example = extrude(1, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 } |
 {

docs/kcl/patternTransform.md

@@ -55,15 +55,21 @@ let vase = layer()
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -81,7 +87,7 @@ let vase = layer()
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -123,15 +129,21 @@ let vase = layer()
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -183,6 +195,38 @@ let vase = layer()
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -357,6 +401,38 @@ let vase = layer()
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 } |
 {

docs/kcl/profileStart.md

@@ -19,7 +19,7 @@ const sketch001 = startSketchOn('XY')
   |> startProfileAt([5, 2], %)
   |> angledLine({ angle: 120, length: 50 }, %, $seg01)
   |> angledLine({
-       angle: segAng(seg01, %) + 120,
+       angle: segAng(seg01) + 120,
        length: 50
      }, %)
   |> lineTo(profileStart(%), %)
@@ -34,7 +34,7 @@ const sketch001 = startSketchOn('XY')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -76,15 +76,21 @@ const sketch001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -102,7 +108,7 @@ const sketch001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -253,6 +259,38 @@ const sketch001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/profileStartX.md

@@ -29,7 +29,7 @@ const sketch001 = startSketchOn('XY')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -71,15 +71,21 @@ const sketch001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -97,7 +103,7 @@ const sketch001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -248,6 +254,38 @@ const sketch001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/profileStartY.md

@@ -28,7 +28,7 @@ const sketch001 = startSketchOn('XY')
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -70,15 +70,21 @@ const sketch001 = startSketchOn('XY')
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -96,7 +102,7 @@ const sketch001 = startSketchOn('XY')
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -247,6 +253,38 @@ const sketch001 = startSketchOn('XY')
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/revolve.md

@@ -107,7 +107,7 @@ const sketch001 = startSketchOn(box, "END")
   |> circle([10, 10], 4, %)
   |> revolve({
        angle: 90,
-       axis: getOppositeEdge(revolveAxis, box)
+       axis: getOppositeEdge(revolveAxis)
      }, %)
 ```
 
@@ -157,6 +157,92 @@ const part001 = revolve({
 } |
 uuid |
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 },
 }
@@ -164,7 +250,7 @@ uuid |
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -206,15 +292,21 @@ uuid |
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -232,7 +324,7 @@ uuid |
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -383,6 +475,38 @@ uuid |
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -534,15 +658,21 @@ uuid |
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -560,7 +690,7 @@ uuid |
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -602,15 +732,21 @@ uuid |
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -662,6 +798,38 @@ uuid |
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -835,6 +1003,38 @@ uuid |
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```

docs/kcl/segAng.md

@@ -9,7 +9,7 @@ Returns the angle of the segment.
 
 
 ```js
-segAng(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segAng(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -20,9 +20,9 @@ const exampleSketch = startSketchOn('XZ')
   |> line([10, 0], %)
   |> line([5, 10], %, $seg01)
   |> line([-10, 0], %)
-  |> angledLine([segAng(seg01, %), 10], %)
+  |> angledLine([segAng(seg01), 10], %)
   |> line([-10, 0], %)
-  |> angledLine([segAng(seg01, %), -15], %)
+  |> angledLine([segAng(seg01), -15], %)
   |> close(%)
 
 const example = extrude(4, exampleSketch)
@@ -32,89 +32,15 @@ const example = extrude(4, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: {
-	// The id of the plane.
-	id: uuid,
-	// Origin of the plane.
-	origin: {
-	x: number,
-	y: number,
-	z: number,
-},
-	type: "plane",
-	// Type for a plane.
-	value: "XY" | "XZ" | "YZ" | "Custom",
-	// What should the plane’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the plane’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-} |
-{
-	// The extrude group the face is on.
-	extrudeGroup: {
-	// The id of the extrusion end cap
-	endCapId: uuid,
-	// Chamfers or fillets on this extrude group.
-	filletOrChamfers: [{
-	// The engine id of the edge to fillet.
-	edge_id: uuid,
-	// The id of the engine command that called this fillet.
-	id: uuid,
-	radius: number,
-	type: "fillet",
-} |
-{
-	// The engine id of the edge to chamfer.
-	edge_id: uuid,
-	// The id of the engine command that called this chamfer.
-	id: uuid,
-	length: number,
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	type: "chamfer",
-}],
-	// The height of the extrude group.
-	height: number,
-	// The id of the extrude group.
-	id: uuid,
-	// The sketch group.
-	sketchGroup: {
-	// The id of the sketch group.
-	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: SketchSurface,
-	// The starting path.
-	start: {
+	// The path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
@@ -127,109 +53,10 @@ const example = extrude(4, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
-} |
-{
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
-},
-	// The id of the extrusion start cap
-	startCapId: uuid,
-	// The extrude surfaces.
-	value: [{
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -260,144 +87,41 @@ const example = extrude(4, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	id: uuid,
-	type: "face",
-	// The tag of the face.
-	value: string,
-	// What should the face’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the face’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-},
-	// The starting path.
-	start: {
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
+	type: "fillet",
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
 	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
 }
 ```
 

docs/kcl/segEndX.md

@@ -9,7 +9,7 @@ Returns the segment end of x.
 
 
 ```js
-segEndX(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segEndX(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -19,7 +19,7 @@ const exampleSketch = startSketchOn('XZ')
   |> startProfileAt([0, 0], %)
   |> line([20, 0], %, $thing)
   |> line([0, 5], %)
-  |> line([segEndX(thing, %), 0], %)
+  |> line([segEndX(thing), 0], %)
   |> line([-20, 10], %)
   |> close(%)
 
@@ -30,89 +30,15 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: {
-	// The id of the plane.
-	id: uuid,
-	// Origin of the plane.
-	origin: {
-	x: number,
-	y: number,
-	z: number,
-},
-	type: "plane",
-	// Type for a plane.
-	value: "XY" | "XZ" | "YZ" | "Custom",
-	// What should the plane’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the plane’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-} |
-{
-	// The extrude group the face is on.
-	extrudeGroup: {
-	// The id of the extrusion end cap
-	endCapId: uuid,
-	// Chamfers or fillets on this extrude group.
-	filletOrChamfers: [{
-	// The engine id of the edge to fillet.
-	edge_id: uuid,
-	// The id of the engine command that called this fillet.
-	id: uuid,
-	radius: number,
-	type: "fillet",
-} |
-{
-	// The engine id of the edge to chamfer.
-	edge_id: uuid,
-	// The id of the engine command that called this chamfer.
-	id: uuid,
-	length: number,
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	type: "chamfer",
-}],
-	// The height of the extrude group.
-	height: number,
-	// The id of the extrude group.
-	id: uuid,
-	// The sketch group.
-	sketchGroup: {
-	// The id of the sketch group.
-	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: SketchSurface,
-	// The starting path.
-	start: {
+	// The path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
@@ -125,109 +51,10 @@ const example = extrude(5, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
-} |
-{
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
-},
-	// The id of the extrusion start cap
-	startCapId: uuid,
-	// The extrude surfaces.
-	value: [{
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -258,144 +85,41 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	id: uuid,
-	type: "face",
-	// The tag of the face.
-	value: string,
-	// What should the face’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the face’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-},
-	// The starting path.
-	start: {
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
+	type: "fillet",
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
 	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
 }
 ```
 

docs/kcl/segEndY.md

@@ -9,7 +9,7 @@ Returns the segment end of y.
 
 
 ```js
-segEndY(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segEndY(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -20,7 +20,7 @@ const exampleSketch = startSketchOn('XZ')
   |> line([20, 0], %)
   |> line([0, 3], %, $thing)
   |> line([-10, 0], %)
-  |> line([0, segEndY(thing, %)], %)
+  |> line([0, segEndY(thing)], %)
   |> line([-10, 0], %)
   |> close(%)
 
@@ -31,89 +31,15 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: {
-	// The id of the plane.
-	id: uuid,
-	// Origin of the plane.
-	origin: {
-	x: number,
-	y: number,
-	z: number,
-},
-	type: "plane",
-	// Type for a plane.
-	value: "XY" | "XZ" | "YZ" | "Custom",
-	// What should the plane’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the plane’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-} |
-{
-	// The extrude group the face is on.
-	extrudeGroup: {
-	// The id of the extrusion end cap
-	endCapId: uuid,
-	// Chamfers or fillets on this extrude group.
-	filletOrChamfers: [{
-	// The engine id of the edge to fillet.
-	edge_id: uuid,
-	// The id of the engine command that called this fillet.
-	id: uuid,
-	radius: number,
-	type: "fillet",
-} |
-{
-	// The engine id of the edge to chamfer.
-	edge_id: uuid,
-	// The id of the engine command that called this chamfer.
-	id: uuid,
-	length: number,
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	type: "chamfer",
-}],
-	// The height of the extrude group.
-	height: number,
-	// The id of the extrude group.
-	id: uuid,
-	// The sketch group.
-	sketchGroup: {
-	// The id of the sketch group.
-	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: SketchSurface,
-	// The starting path.
-	start: {
+	// The path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
@@ -126,109 +52,10 @@ const example = extrude(5, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
-} |
-{
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
-},
-	// The id of the extrusion start cap
-	startCapId: uuid,
-	// The extrude surfaces.
-	value: [{
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -259,144 +86,41 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	id: uuid,
-	type: "face",
-	// The tag of the face.
-	value: string,
-	// What should the face’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the face’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-},
-	// The starting path.
-	start: {
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
+	type: "fillet",
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
 	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
 }
 ```
 

docs/kcl/segLen.md

@@ -9,7 +9,7 @@ Returns the length of the segment.
 
 
 ```js
-segLen(segment_name: TagIdentifier, sketch_group: SketchGroup) -> number
+segLen(tag: TagIdentifier) -> number
 ```
 
 ### Examples
@@ -19,7 +19,7 @@ const exampleSketch = startSketchOn("XZ")
   |> startProfileAt([0, 0], %)
   |> angledLine({ angle: 60, length: 10 }, %, $thing)
   |> tangentialArc({ offset: -120, radius: 5 }, %)
-  |> angledLine({ angle: -60, length: segLen(thing, %) }, %)
+  |> angledLine({ angle: -60, length: segLen(thing) }, %)
   |> close(%)
 
 const example = extrude(5, exampleSketch)
@@ -29,89 +29,15 @@ const example = extrude(5, exampleSketch)
 
 ### Arguments
 
-* `segment_name`: `TagIdentifier` (REQUIRED)
+* `tag`: `TagIdentifier` (REQUIRED)
 ```js
 {
-	value: string,
-}
-```
-* `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
-```js
-{
-	// The id of the sketch group.
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
 	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: {
-	// The id of the plane.
-	id: uuid,
-	// Origin of the plane.
-	origin: {
-	x: number,
-	y: number,
-	z: number,
-},
-	type: "plane",
-	// Type for a plane.
-	value: "XY" | "XZ" | "YZ" | "Custom",
-	// What should the plane’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the plane’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-} |
-{
-	// The extrude group the face is on.
-	extrudeGroup: {
-	// The id of the extrusion end cap
-	endCapId: uuid,
-	// Chamfers or fillets on this extrude group.
-	filletOrChamfers: [{
-	// The engine id of the edge to fillet.
-	edge_id: uuid,
-	// The id of the engine command that called this fillet.
-	id: uuid,
-	radius: number,
-	type: "fillet",
-} |
-{
-	// The engine id of the edge to chamfer.
-	edge_id: uuid,
-	// The id of the engine command that called this chamfer.
-	id: uuid,
-	length: number,
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	type: "chamfer",
-}],
-	// The height of the extrude group.
-	height: number,
-	// The id of the extrude group.
-	id: uuid,
-	// The sketch group.
-	sketchGroup: {
-	// The id of the sketch group.
-	id: uuid,
-	// What the sketch is on (can be a plane or a face).
-	on: SketchSurface,
-	// The starting path.
-	start: {
+	// The path the tag is on.
+	path: {
 	// The from point.
 	from: [number, number],
 	// The tag of the path.
@@ -124,109 +50,10 @@ const example = extrude(5, exampleSketch)
 	// The to point.
 	to: [number, number],
 },
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
-} |
-{
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
-},
-	// The id of the extrusion start cap
-	startCapId: uuid,
-	// The extrude surfaces.
-	value: [{
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
 	// The face id for the extrude plane.
 	faceId: uuid,
 	// The id of the geometry.
@@ -257,144 +84,41 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
-}],
-},
-	// The id of the face.
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
 	id: uuid,
-	type: "face",
-	// The tag of the face.
-	value: string,
-	// What should the face’s X axis be?
-	xAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// What should the face’s Y axis be?
-	yAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-	// The z-axis (normal).
-	zAxis: {
-	x: number,
-	y: number,
-	z: number,
-},
-},
-	// The starting path.
-	start: {
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-},
-	// Tag identifiers that have been declared in this sketch group.
-	tags: {
-},
-	// The paths in the sketch group.
-	value: [{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "ToPoint",
+	type: "chamfer",
 } |
 {
-	// arc's direction
-	ccw: string,
-	// the arc's center
-	center: [number, number],
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
 	tag: {
 	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
 	end: number,
 	start: number,
 	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArcTo",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
+	type: "fillet",
 },
-	// The to point.
-	to: [number, number],
-	type: "TangentialArc",
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
 },
-	// The to point.
-	to: [number, number],
-	type: "Horizontal",
-	// The x coordinate.
-	x: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
 	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "AngledLineTo",
-	// The x coordinate.
-	x: number,
-	// The y coordinate.
-	y: number,
-} |
-{
-	// The from point.
-	from: [number, number],
-	// The tag of the path.
-	tag: {
-	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
-	end: number,
-	start: number,
-	value: string,
-},
-	// The to point.
-	to: [number, number],
-	type: "Base",
-}],
 }
 ```
 

docs/kcl/shell.md

@@ -37,6 +37,92 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	// The faces you want removed.
 	faces: ["start" | "end" |
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 }],
 	// The thickness of the shell.
@@ -51,15 +137,21 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -77,7 +169,7 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -119,15 +211,21 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -179,6 +277,38 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -352,6 +482,38 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```
@@ -366,15 +528,21 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -392,7 +560,7 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -434,15 +602,21 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -494,6 +668,38 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -667,6 +873,38 @@ shell({ faces: ['end'], thickness: 0.25 }, firstSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```

docs/kcl/startProfileAt.md

@@ -97,15 +97,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -123,7 +129,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -331,6 +337,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -373,7 +411,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -415,15 +453,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -441,7 +485,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -592,6 +636,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/startSketchAt.md

@@ -59,7 +59,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -101,15 +101,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -127,7 +133,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -278,6 +284,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/startSketchOn.md

@@ -55,7 +55,7 @@ const exampleSketch = startSketchOn("XY")
 
 const example = extrude(10, exampleSketch)
 
-const exampleSketch002 = startSketchOn(example, 'sketchingFace')
+const exampleSketch002 = startSketchOn(example, sketchingFace)
   |> startProfileAt([1, 1], %)
   |> line([8, 0], %)
   |> line([0, 8], %)
@@ -64,7 +64,7 @@ const exampleSketch002 = startSketchOn(example, 'sketchingFace')
 
 const example002 = extrude(10, exampleSketch002)
 
-const exampleSketch003 = startSketchOn(example002, 'sketchingFace002')
+const exampleSketch003 = startSketchOn(example002, sketchingFace002)
   |> startProfileAt([-8, 12], %)
   |> line([0, 6], %)
   |> line([6, 0], %)
@@ -106,9 +106,9 @@ const example002 = extrude(5, exampleSketch002)
 const a1 = startSketchOn({
        plane: {
          origin: { x: 0, y: 0, z: 0 },
-         x_axis: { x: 1, y: 0, z: 0 },
-         y_axis: { x: 0, y: 1, z: 0 },
-         z_axis: { x: 0, y: 0, z: 1 }
+         xAxis: { x: 1, y: 0, z: 0 },
+         yAxis: { x: 0, y: 1, z: 0 },
+         zAxis: { x: 0, y: 0, z: 1 }
        }
      })
   |> startProfileAt([0, 0], %)
@@ -141,19 +141,19 @@ const a1 = startSketchOn({
 	z: number,
 },
 	// What should the plane’s X axis be?
-	x_axis: {
+	xAxis: {
 	x: number,
 	y: number,
 	z: number,
 },
 	// What should the plane’s Y axis be?
-	y_axis: {
+	yAxis: {
 	x: number,
 	y: number,
 	z: number,
 },
 	// The z-axis (normal).
-	z_axis: {
+	zAxis: {
 	x: number,
 	y: number,
 	z: number,
@@ -166,15 +166,21 @@ const a1 = startSketchOn({
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -192,7 +198,7 @@ const a1 = startSketchOn({
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -400,6 +406,38 @@ const a1 = startSketchOn({
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 }
 ```
@@ -407,6 +445,92 @@ const a1 = startSketchOn({
 ```js
 "start" | "end" |
 {
+	// Engine information for a tag.
+	info: {
+	// The id of the tagged object.
+	id: uuid,
+	// The path the tag is on.
+	path: {
+	// The from point.
+	from: [number, number],
+	// The tag of the path.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	// The to point.
+	to: [number, number],
+},
+	// The sketch group the tag is on.
+	sketchGroup: uuid,
+	// The surface information for the tag.
+	surface: {
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudePlane",
+} |
+{
+	// The face id for the extrude plane.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
+},
+},
 	value: string,
 }
 ```
@@ -454,15 +578,21 @@ const a1 = startSketchOn({
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -480,7 +610,7 @@ const a1 = startSketchOn({
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -688,6 +818,38 @@ const a1 = startSketchOn({
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/tangentialArc.md

@@ -42,7 +42,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -84,15 +84,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -110,7 +116,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -261,6 +267,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -416,7 +454,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -458,15 +496,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -484,7 +528,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -635,6 +679,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/tangentialArcTo.md

@@ -33,7 +33,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -75,15 +75,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -101,7 +107,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -252,6 +258,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -407,7 +445,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -449,15 +487,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -475,7 +519,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -626,6 +670,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/xLine.md

@@ -36,7 +36,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -78,15 +78,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -104,7 +110,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -255,6 +261,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -410,7 +448,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -452,15 +490,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -478,7 +522,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -629,6 +673,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/xLineTo.md

@@ -36,7 +36,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -78,15 +78,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -104,7 +110,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -255,6 +261,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -410,7 +448,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -452,15 +490,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -478,7 +522,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -629,6 +673,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/yLine.md

@@ -34,7 +34,7 @@ const example = extrude(10, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -76,15 +76,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -102,7 +108,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -253,6 +259,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -408,7 +446,7 @@ const example = extrude(10, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -450,15 +488,21 @@ const example = extrude(10, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -476,7 +520,7 @@ const example = extrude(10, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -627,6 +671,38 @@ const example = extrude(10, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

docs/kcl/yLineTo.md

@@ -32,7 +32,7 @@ const example = extrude(5, exampleSketch)
 * `sketch_group`: `SketchGroup` - A sketch group is a collection of paths. (REQUIRED)
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -74,15 +74,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -100,7 +106,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -251,6 +257,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.
@@ -406,7 +444,7 @@ const example = extrude(5, exampleSketch)
 `SketchGroup` - A sketch group is a collection of paths.
 ```js
 {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: {
@@ -448,15 +486,21 @@ const example = extrude(5, exampleSketch)
 	// Chamfers or fillets on this extrude group.
 	filletOrChamfers: [{
 	// The engine id of the edge to fillet.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this fillet.
 	id: uuid,
 	radius: number,
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
 	type: "fillet",
 } |
 {
 	// The engine id of the edge to chamfer.
-	edge_id: uuid,
+	edgeId: uuid,
 	// The id of the engine command that called this chamfer.
 	id: uuid,
 	length: number,
@@ -474,7 +518,7 @@ const example = extrude(5, exampleSketch)
 	id: uuid,
 	// The sketch group.
 	sketchGroup: {
-	// The id of the sketch group.
+	// The id of the sketch group (this will change when the engine's reference to it changes.
 	id: uuid,
 	// What the sketch is on (can be a plane or a face).
 	on: SketchSurface,
@@ -625,6 +669,38 @@ const example = extrude(5, exampleSketch)
 	value: string,
 },
 	type: "extrudeArc",
+} |
+{
+	// The id for the chamfer surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "chamfer",
+} |
+{
+	// The id for the fillet surface.
+	faceId: uuid,
+	// The id of the geometry.
+	id: uuid,
+	// The source range.
+	sourceRange: [number, number],
+	// The tag.
+	tag: {
+	digest: [number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number, number],
+	end: number,
+	start: number,
+	value: string,
+},
+	type: "fillet",
 }],
 },
 	// The id of the face.

e2e/playwright/flow-tests.spec.ts

@@ -26,7 +26,7 @@ import * as TOML from '@iarna/toml'
 import { LineInputsType } from 'lang/std/sketchcombos'
 import { Coords2d } from 'lang/std/sketch'
 import { KCL_DEFAULT_LENGTH } from 'lib/constants'
-import { EngineCommand } from 'lang/std/engineConnection'
+import { EngineCommand } from 'lang/std/artifactMap'
 import { onboardingPaths } from 'routes/Onboarding/paths'
 import { bracket } from 'lib/exampleKcl'
 
@@ -48,8 +48,6 @@ const commonPoints = {
   startAt: '[7.19, -9.7]',
   num1: 7.25,
   num2: 14.44,
-  // num1: 9.64,
-  // num2: 19.19,
 }
 
 test.afterEach(async ({ context, page }, testInfo) => {
@@ -141,8 +139,9 @@ async function doBasicSketch(page: Page, openPanes: string[]) {
     await expect(u.codeLocator)
       .toHaveText(`const sketch001 = startSketchOn('XZ')
   |> startProfileAt(${commonPoints.startAt}, %)`)
+  } else {
+    await page.waitForTimeout(500)
   }
-  await page.waitForTimeout(500)
 
   await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 10)
   await page.waitForTimeout(500)
@@ -152,8 +151,9 @@ async function doBasicSketch(page: Page, openPanes: string[]) {
       .toHaveText(`const sketch001 = startSketchOn('XZ')
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)`)
+  } else {
+    await page.waitForTimeout(500)
   }
-  await page.waitForTimeout(500)
 
   await page.mouse.click(startXPx + PUR * 20, 500 - PUR * 20)
   if (openPanes.includes('code')) {
@@ -162,8 +162,9 @@ async function doBasicSketch(page: Page, openPanes: string[]) {
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %)
   |> line([0, ${commonPoints.num1 + 0.01}], %)`)
+  } else {
+    await page.waitForTimeout(500)
   }
-  await page.waitForTimeout(500)
   await page.mouse.click(startXPx, 500 - PUR * 20)
   if (openPanes.includes('code')) {
     await expect(u.codeLocator)
@@ -212,7 +213,7 @@ async function doBasicSketch(page: Page, openPanes: string[]) {
   |> startProfileAt(${commonPoints.startAt}, %)
   |> line([${commonPoints.num1}, 0], %, $seg01)
   |> line([0, ${commonPoints.num1 + 0.01}], %)
-  |> angledLine([180, segLen(seg01, %)], %)`)
+  |> angledLine([180, segLen(seg01)], %)`)
 }
 
 test.describe('Basic sketch', () => {
@@ -924,10 +925,10 @@ test.describe('Editor tests', () => {
 
     await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
     await expect(
-      page.locator('.cm-lintRange.cm-lintRange-error').first()
+      page.locator('.cm-lint-marker.cm-lint-marker-error')
     ).toBeVisible()
 
-    await page.locator('.cm-lintRange.cm-lintRange-error').hover()
+    await page.locator('.cm-lint-marker.cm-lint-marker-error').hover()
     await expect(page.locator('.cm-diagnosticText').first()).toBeVisible()
     await expect(
       page.getByText('Cannot redefine `topAng`').first()
@@ -1015,18 +1016,18 @@ test.describe('Editor tests', () => {
   |> startProfileAt([0, 0], %)
   |> line([0, 10], %)
   |> line([10, 0], %)
-  |> line([0, -10], %, 'revolveAxis')
+  |> line([0, -10], %, $revolveAxis)
   |> close(%)
   |> extrude(10, %)
   
-  const sketch001 = startSketchOn(box, "revolveAxis")
+  const sketch001 = startSketchOn(box, revolveAxis)
   |> startProfileAt([5, 10], %)
   |> line([0, -10], %)
   |> line([2, 0], %)
   |> line([0, -10], %)
   |> close(%)
   |> revolve({
-  axis: getEdge('revolveAxis', box),
+  axis: revolveAxis,
   angle: 90
   }, %)
       `
@@ -1044,7 +1045,7 @@ test.describe('Editor tests', () => {
     await page.hover('.cm-lint-marker-error')
     const searchText =
       'sketch profile must lie entirely on one side of the revolution axis'
-    await expect(page.getByText(searchText).first()).toBeVisible()
+    await expect(page.getByText(searchText)).toBeVisible()
   })
   test.describe('Autocomplete works', () => {
     test('with enter/click to accept the completion', async ({ page }) => {
@@ -1063,7 +1064,7 @@ test.describe('Editor tests', () => {
       await page.keyboard.type('const sketch001 = start')
 
       // expect there to be six auto complete options
-      await expect(page.locator('.cm-completionLabel')).toHaveCount(6)
+      await expect(page.locator('.cm-completionLabel')).toHaveCount(8)
       // this makes sure we can accept a completion with click
       await page.getByText('startSketchOn').click()
       await page.keyboard.type("'XZ'")
@@ -2264,6 +2265,50 @@ test.describe('Onboarding tests', () => {
     await expect(page.locator('.cm-content')).toContainText('// Shelf Bracket')
   })
 
+  test('Code resets after confirmation', async ({ page }) => {
+    const initialCode = `const sketch001 = startSketchOn('XZ')`
+
+    // Load the page up with some code so we see the confirmation warning
+    // when we go to replay onboarding
+    await page.addInitScript((code) => {
+      localStorage.setItem('persistCode', code)
+    }, initialCode)
+
+    const u = await getUtils(page)
+    await page.setViewportSize({ width: 1200, height: 500 })
+    await u.waitForAuthSkipAppStart()
+
+    // Replay the onboarding
+    await page.getByRole('link', { name: 'Settings' }).last().click()
+    const replayButton = page.getByRole('button', { name: 'Replay onboarding' })
+    await expect(replayButton).toBeVisible()
+    await replayButton.click()
+
+    // Ensure we see the warning, and that the code has not yet updated
+    await expect(
+      page.getByText('Replaying onboarding resets your code')
+    ).toBeVisible()
+    await expect(page.locator('.cm-content')).toHaveText(initialCode)
+
+    const nextButton = page.getByTestId('onboarding-next')
+    await expect(nextButton).toBeVisible()
+    await nextButton.click()
+
+    // Ensure we see the introduction and that the code has been reset
+    await expect(page.getByText('Welcome to Modeling App!')).toBeVisible()
+    await expect(page.locator('.cm-content')).toContainText('// Shelf Bracket')
+
+    // Ensure we persisted the code to local storage.
+    // Playwright's addInitScript method unfortunately will reset
+    // this code if we try reloading the page as a test,
+    // so this is our best way to test persistence afaik.
+    expect(
+      await page.evaluate(() => {
+        return localStorage.getItem('persistCode')
+      })
+    ).toContain('// Shelf Bracket')
+  })
+
   test('Click through each onboarding step', async ({ page }) => {
     const u = await getUtils(page)
 
@@ -3168,7 +3213,7 @@ const extrude001 = extrude(10, sketch001)`
       },
       {
         pos: [816, 244],
-        expectedCode: 'angledLine([segAng(seg01, %), yo], %)',
+        expectedCode: 'angledLine([segAng(seg01), yo], %)',
       },
       {
         pos: [1107, 161],
@@ -3974,16 +4019,19 @@ test.describe('Regression tests', () => {
       )
     })
 
-    await page.goto('/')
-    await u.waitForPageLoad()
-
-    // error in guter
-    await expect(page.locator('.cm-lint-marker-error')).toBeVisible()
-    await page.waitForTimeout(200)
-    // expect it still to be there (sometimes it just clears for a bit?)
-    await expect(page.locator('.cm-lint-marker-error')).toBeVisible({
-      timeout: 10_000,
-    })
+    await expect(async () => {
+      await page.goto('/')
+      await u.waitForPageLoad()
+      // error in guter
+      await expect(page.locator('.cm-lint-marker-error')).toBeVisible({
+        timeout: 1_000,
+      })
+      await page.waitForTimeout(200)
+      // expect it still to be there (sometimes it just clears for a bit?)
+      await expect(page.locator('.cm-lint-marker-error')).toBeVisible({
+        timeout: 1_000,
+      })
+    }).toPass({ timeout: 40_000, intervals: [1_000] })
 
     // error text on hover
     await page.hover('.cm-lint-marker-error')
@@ -4922,13 +4970,13 @@ const part001 = startSketchOn('XZ')
   |> startProfileAt([-7.54, -26.74], %)
   |> line([74.36, 130.4], %, $seg01)
   |> line([78.92, -120.11], %)
-  |> angledLine([segAng(seg01, %), yo], %)
+  |> angledLine([segAng(seg01), yo], %)
   |> line([41.19, 28.97 + 5], %)
 const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
       )
     })
@@ -4980,13 +5028,13 @@ const part001 = startSketchOn('XZ')
   |> startProfileAt([-7.54, -26.74], %)
   |> line([74.36, 130.4], %, $seg01)
   |> line([78.92, -120.11], %)
-  |> angledLine([segAng(seg01, %), 78.33], %)
+  |> angledLine([segAng(seg01), 78.33], %)
   |> line([41.19, 28.97], %)
 const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5051,22 +5099,22 @@ const part002 = startSketchOn('XZ')
       {
         testName: 'Add variable',
         constraint: 'horizontal distance',
-        value: 'segEndX(seg01, %) + xDis001, 61.34',
+        value: 'segEndX(seg01) + xDis001, 61.34',
       },
       {
         testName: 'No variable',
         constraint: 'horizontal distance',
-        value: 'segEndX(seg01, %) + 88.08, 61.34',
+        value: 'segEndX(seg01) + 88.08, 61.34',
       },
       {
         testName: 'Add variable',
         constraint: 'vertical distance',
-        value: '154.9, segEndY(seg01, %) - yDis001',
+        value: '154.9, segEndY(seg01) - yDis001',
       },
       {
         testName: 'No variable',
         constraint: 'vertical distance',
-        value: '154.9, segEndY(seg01, %) - 42.32',
+        value: '154.9, segEndY(seg01) - 42.32',
       },
     ] as const
     for (const { testName, value, constraint } of cases) {
@@ -5085,7 +5133,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5191,7 +5239,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5261,13 +5309,13 @@ const part002 = startSketchOn('XZ')
         testName: 'Add variable',
         addVariable: true,
         axisSelect: false,
-        value: 'segAng(seg01, %) + angle001',
+        value: 'segAng(seg01) + angle001',
       },
       {
         testName: 'No variable',
         addVariable: false,
         axisSelect: false,
-        value: 'segAng(seg01, %) + 22.69',
+        value: 'segAng(seg01) + 22.69',
       },
       {
         testName: 'Add variable, selecting axis',
@@ -5298,7 +5346,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5408,7 +5456,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5484,7 +5532,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5549,19 +5597,19 @@ const part002 = startSketchOn('XZ')
   test.describe('Two segment - no modal constraints', () => {
     const cases = [
       {
-        codeAfter: `|> angledLine([83, segLen(seg01, %)], %)`,
+        codeAfter: `|> angledLine([83, segLen(seg01)], %)`,
         constraintName: 'Equal Length',
       },
       {
-        codeAfter: `|> angledLine([segAng(seg01, %), 78.33], %)`,
+        codeAfter: `|> angledLine([segAng(seg01), 78.33], %)`,
         constraintName: 'Parallel',
       },
       {
-        codeAfter: `|> lineTo([segEndX(seg01, %), 61.34], %)`,
+        codeAfter: `|> lineTo([segEndX(seg01), 61.34], %)`,
         constraintName: 'Vertically Align',
       },
       {
-        codeAfter: `|> lineTo([154.9, segEndY(seg01, %)], %)`,
+        codeAfter: `|> lineTo([154.9, segEndY(seg01)], %)`,
         constraintName: 'Horizontally Align',
       },
     ] as const
@@ -5580,7 +5628,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -5657,7 +5705,7 @@ const part002 = startSketchOn('XZ')
   |> startProfileAt([299.05, 231.45], %)
   |> xLine(-425.34, %, $seg_what)
   |> yLine(-264.06, %)
-  |> xLine(segLen(seg_what, %), %)
+  |> xLine(segLen(seg_what), %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)`
           )
         })
@@ -6825,8 +6873,8 @@ const part001 = startSketchOn('XZ')
   |> startProfileAt([5, 6], %)
   |> ${lineToBeDeleted}
   |> line([-10, -15], %)
-  |> angledLine([-176, segLen(seg01, %)], %)        
-${extraLine ? 'const myVar = segLen(seg01, part001)' : ''}`
+  |> angledLine([-176, segLen(seg01)], %)        
+${extraLine ? 'const myVar = segLen(seg01)' : ''}`
               )
             },
             {
@@ -6985,7 +7033,7 @@ ${extraLine ? 'const myVar = segLen(seg01, part001)' : ''}`
   |> startProfileAt([5, 6], %)
   |> ${lineToBeDeleted}
   |> line([-10, -15], %)
-  |> angledLine([-176, segLen(seg01, %)], %)`
+  |> angledLine([-176, segLen(seg01)], %)`
             )
           },
           {
@@ -7560,19 +7608,19 @@ const part001 = startSketchOn('-XZ')
         offset: -armThick,
         intersectTag: seg04
       }, %)
-  |> angledLineToY([segAng(seg04, %) + 180, ZERO], %)
+  |> angledLineToY([segAng(seg04) + 180, ZERO], %)
   |> angledLineToY({
         angle: -bottomAng,
         to: -totalHeightHalf - armThick,
       }, %, $seg02)
-  |> xLineTo(segEndX(seg03, %) + 0, %)
-  |> yLine(-segLen(seg01, %), %)
+  |> xLineTo(segEndX(seg03) + 0, %)
+  |> yLine(-segLen(seg01), %)
   |> angledLineThatIntersects({
         angle: HALF_TURN,
         offset: -armThick,
         intersectTag: seg02
       }, %)
-  |> angledLineToY([segAng(seg02, %) + 180, -baseHeight], %)
+  |> angledLineToY([segAng(seg02) + 180, -baseHeight], %)
   |> xLineTo(ZERO, %)
   |> close(%)
   |> extrude(4, %)`

e2e/playwright/snapshot-tests.spec.ts

@@ -64,27 +64,27 @@ const part001 = startSketchOn('-XZ')
   |> angledLineToY({
         angle: topAng,
         to: totalHeightHalf,
-      }, %, 'seg04')
-  |> xLineTo(totalLen, %, 'seg03')
-  |> yLine(-armThick, %, 'seg01')
+      }, %, $seg04)
+  |> xLineTo(totalLen, %, $seg03')
+  |> yLine(-armThick, %, $seg01)
   |> angledLineThatIntersects({
         angle: HALF_TURN,
         offset: -armThick,
-        intersectTag: 'seg04'
+        intersectTag: seg04
       }, %)
-  |> angledLineToY([segAng('seg04', %) + 180, ZERO], %)
+  |> angledLineToY([segAng(seg04, %) + 180, ZERO], %)
   |> angledLineToY({
         angle: -bottomAng,
         to: -totalHeightHalf - armThick,
-      }, %, 'seg02')
-  |> xLineTo(segEndX('seg03', %) + 0, %)
-  |> yLine(-segLen('seg01', %), %)
+      }, %, $seg02)
+  |> xLineTo(segEndX(seg03, %) + 0, %)
+  |> yLine(-segLen(seg01, %), %)
   |> angledLineThatIntersects({
         angle: HALF_TURN,
         offset: -armThick,
-        intersectTag: 'seg02'
+        intersectTag: seg02
       }, %)
-  |> angledLineToY([segAng('seg02', %) + 180, -baseHeight], %)
+  |> angledLineToY([segAng(seg02, %) + 180, -baseHeight], %)
   |> xLineTo(ZERO, %)
   |> close(%)
   |> extrude(4, %)`

e2e/playwright/storageStates.ts

@@ -71,7 +71,7 @@ export const TEST_CODE_GIZMO = `const part001 = startSketchOn('XZ')
 |> angledLine({ angle: 3 + 0, length: 3.14 + 0 }, %)
 |> lineTo([20.14 + 0, -0.14 + 0], %)
 |> xLineTo(29 + 0, %)
-|> yLine(-3.14 + 0, %, 'a')
+|> yLine(-3.14 + 0, %, $a)
 |> xLine(1.63, %)
 |> angledLineOfXLength({ angle: 3 + 0, length: 3.14 }, %)
 |> angledLineOfYLength({ angle: 30, length: 3 + 0 }, %)
@@ -79,7 +79,7 @@ export const TEST_CODE_GIZMO = `const part001 = startSketchOn('XZ')
 |> angledLineToY({ angle: 30, to: 11.14 }, %)
 |> angledLineThatIntersects({
   angle: 3.14,
-  intersectTag: 'a',
+  intersectTag: a,
   offset: 0
 }, %)
 |> tangentialArcTo([13.14 + 0, 13.14], %)

e2e/playwright/test-utils.ts

@@ -1,5 +1,5 @@
-import { test, expect, Page, Download } from '@playwright/test'
-import { EngineCommand } from '../../src/lang/std/engineConnection'
+import { expect, Page, Download } from '@playwright/test'
+import { EngineCommand } from 'lang/std/artifactMap'
 import os from 'os'
 import fsp from 'fs/promises'
 import pixelMatch from 'pixelmatch'

package.json

@@ -109,7 +109,7 @@
   },
   "devDependencies": {
     "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
-    "@babel/preset-env": "^7.24.3",
+    "@babel/preset-env": "^7.25.0",
     "@iarna/toml": "^2.2.5",
     "@lezer/generator": "^1.7.1",
     "@playwright/test": "^1.45.1",

packages/codemirror-lsp-client/src/client/server-capability-registration.ts

@@ -42,8 +42,8 @@ function registerServerCapability(
   serverCapabilities: ServerCapabilities,
   registration: Registration
 ): ServerCapabilities | Error {
-  const serverCapabilitiesCopy = JSON.parse(
-    JSON.stringify(serverCapabilities)
+  const serverCapabilitiesCopy = structuredClone(
+    serverCapabilities
   ) as IFlexibleServerCapabilities
   const { method, registerOptions } = registration
   const providerName = ServerCapabilitiesProviders[method]
@@ -54,7 +54,7 @@ function registerServerCapability(
     } else {
       serverCapabilitiesCopy[providerName] = Object.assign(
         {},
-        JSON.parse(JSON.stringify(registerOptions))
+        structuredClone(registerOptions)
       )
     }
   } else {
@@ -68,8 +68,8 @@ function unregisterServerCapability(
   serverCapabilities: ServerCapabilities,
   unregistration: Unregistration
 ): ServerCapabilities {
-  const serverCapabilitiesCopy = JSON.parse(
-    JSON.stringify(serverCapabilities)
+  const serverCapabilitiesCopy = structuredClone(
+    serverCapabilities
   ) as IFlexibleServerCapabilities
   const { method } = unregistration
   const providerName = ServerCapabilitiesProviders[method]

packages/codemirror-lsp-client/src/plugin/hover.ts

@@ -1,5 +1,10 @@
 import { Extension } from '@codemirror/state'
-import { hoverTooltip, tooltips, ViewPlugin } from '@codemirror/view'
+import {
+  hoverTooltip,
+  tooltips,
+  ViewPlugin,
+  EditorView,
+} from '@codemirror/view'
 
 import { LanguageServerPlugin } from './lsp'
 import { offsetToPos } from './util'
@@ -17,6 +22,13 @@ export default function lspHoverExt(
     }),
     tooltips({
       position: 'absolute',
+      parent: document.body,
+    }),
+    EditorView.baseTheme({
+      '.cm-tooltip': {
+        fontSize: '12px',
+        maxWidth: '400px',
+      },
     }),
   ]
 }

packages/codemirror-lsp-client/src/plugin/lint.ts

@@ -1,12 +0,0 @@
-import { Extension } from '@codemirror/state'
-import { linter, forEachDiagnostic, Diagnostic } from '@codemirror/lint'
-
-export default function lspLintExt(): Extension {
-  return linter((view) => {
-    let diagnostics: Diagnostic[] = []
-    forEachDiagnostic(view.state, (d: Diagnostic, from: number, to: number) => {
-      diagnostics.push(d)
-    })
-    return diagnostics
-  })
-}

packages/codemirror-lsp-client/src/plugin/lsp.ts

@@ -17,8 +17,8 @@ import type {
   PluginSpec,
   ViewPlugin,
 } from '@codemirror/view'
-import { setDiagnosticsEffect } from '@codemirror/lint'
 import { EditorView, Tooltip } from '@codemirror/view'
+import { linter } from '@codemirror/lint'
 
 import type { PublishDiagnosticsParams } from 'vscode-languageserver-protocol'
 import type * as LSP from 'vscode-languageserver-protocol'
@@ -36,7 +36,6 @@ import lspAutocompleteExt from './autocomplete'
 import lspHoverExt from './hover'
 import lspFormatExt from './format'
 import lspIndentExt from './indent'
-import lspLintExt from './lint'
 import lspSemanticTokensExt from './semantic-tokens'
 
 const useLast = (values: readonly any[]) => values.reduce((_, v) => v, '')
@@ -216,20 +215,6 @@ export class LanguageServerPlugin implements PluginValue {
 
     if (!this.client.ready) return
 
-    // TODO(paultag): This is the *wrong* place for this to live.
-    //
-    // We need to clear diagnostics before updating the code, because
-    // if the code shrinks, the errors/diagnostics can go out of range
-    // of the source code, which cause an exception, breaking all the
-    // things.
-    //
-    // We need some sort of clear diagnostics boolean on the editor
-    // and we can drop this.
-    this.view.dispatch({
-      effects: [setDiagnosticsEffect.of([])],
-      annotations: [],
-    })
-
     try {
       // Update the state (not the editor) with the new code.
       this.client.textDocumentDidChange({
@@ -587,8 +572,8 @@ export class LanguageServerPluginSpec
       lspFormatExt(plugin),
       lspHoverExt(plugin),
       lspIndentExt(),
-      lspLintExt(),
       lspSemanticTokensExt(),
+      linter(null),
     ]
   }
 }

src-tauri/Cargo.lock

@@ -188,7 +188,7 @@ dependencies = [
  "tauri-plugin-shell",
  "tauri-plugin-updater",
  "tokio",
- "toml 0.8.14",
+ "toml 0.8.16",
  "url",
 ]
 
@@ -332,7 +332,7 @@ checksum = "3b43422f69d8ff38f95f1b2bb76517c91589a924d1559a0e935d7c8ce0274c11"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -367,7 +367,7 @@ checksum = "6e0c28dcc82d7c8ead5cb13beb15405b57b8546e93215673ff8ca0349a028107"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -407,7 +407,7 @@ checksum = "3c87f3f15e7794432337fc718554eaa4dc8f04c9677a950ffe366f20a162ae42"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -550,7 +550,7 @@ dependencies = [
  "proc-macro-crate 3.1.0",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "syn_derive",
 ]
 
@@ -721,7 +721,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8a969e13a7589e9e3e4207e153bae624ade2b5622fb4684a4923b23ec3d57719"
 dependencies = [
  "serde",
- "toml 0.8.14",
+ "toml 0.8.16",
 ]
 
 [[package]]
@@ -792,9 +792,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.5.9"
+version = "4.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64acc1846d54c1fe936a78dc189c34e28d3f5afc348403f28ecf53660b9b8462"
+checksum = "35723e6a11662c2afb578bcf0b88bf6ea8e21282a953428f240574fcc3a2b5b3"
 dependencies = [
  "clap_builder",
  "clap_derive",
@@ -802,9 +802,9 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.5.9"
+version = "4.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fb8393d67ba2e7bfaf28a23458e4e2b543cc73a99595511eb207fdb8aede942"
+checksum = "49eb96cbfa7cfa35017b7cd548c75b14c3118c98b423041d70562665e07fb0fa"
 dependencies = [
  "anstream",
  "anstyle",
@@ -816,14 +816,14 @@ dependencies = [
 
 [[package]]
 name = "clap_derive"
-version = "4.5.8"
+version = "4.5.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2bac35c6dafb060fd4d275d9a4ffae97917c13a6327903a8be2153cd964f7085"
+checksum = "5d029b67f89d30bbb547c89fd5161293c0aec155fc691d7924b64550662db93e"
 dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1073,7 +1073,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13b588ba4ac1a99f7f2964d24b3d896ddc6bf847ee3855dbd4366f058cfcd331"
 dependencies = [
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1083,7 +1083,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "edb49164822f3ee45b17acd4a208cfc1251410cf0cad9a833234c9890774dd9f"
 dependencies = [
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1107,7 +1107,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "strsim 0.10.0",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1118,7 +1118,7 @@ checksum = "a668eda54683121533a393014d8692171709ff57a7d61f187b6e782719f8933f"
 dependencies = [
  "darling_core",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1179,7 +1179,7 @@ checksum = "4078275de501a61ceb9e759d37bdd3d7210e654dbc167ac1a3678ef4435ed57b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "synstructure",
 ]
 
@@ -1206,7 +1206,7 @@ dependencies = [
 
 [[package]]
 name = "derive-docs"
-version = "0.1.20"
+version = "0.1.21"
 dependencies = [
  "Inflector",
  "convert_case 0.6.0",
@@ -1216,7 +1216,7 @@ dependencies = [
  "regex",
  "serde",
  "serde_tokenstream",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1227,7 +1227,7 @@ checksum = "67e77553c4162a157adbf834ebae5b415acbecbeafc7a74b0e886657506a7611"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1288,7 +1288,7 @@ checksum = "487585f4d0c6655fe74905e2504d8ad6908e4db67f744eb140876906c2f3175d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1320,7 +1320,7 @@ checksum = "f2b99bf03862d7f545ebc28ddd33a665b50865f4dfd84031a393823879bd4c54"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1383,7 +1383,7 @@ dependencies = [
  "cc",
  "memchr",
  "rustc_version",
- "toml 0.8.14",
+ "toml 0.8.16",
  "vswhom",
  "winreg 0.52.0",
 ]
@@ -1427,7 +1427,7 @@ checksum = "5c785274071b1b420972453b306eeca06acf4633829db4223b58a2a8c5953bc4"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1588,7 +1588,7 @@ checksum = "1a5c6c585bc94aaf2c7b51dd4c2ba22680844aba4c687be581871a6f518c5742"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1704,7 +1704,7 @@ checksum = "87750cf4b7a4c0625b1529e4c543c2182106e4dedc60a2a6455e00d212c489ac"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -1980,7 +1980,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -2008,7 +2008,7 @@ dependencies = [
  "inflections",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -2083,7 +2083,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -2571,7 +2571,7 @@ dependencies = [
 
 [[package]]
 name = "kcl-lib"
-version = "0.1.72"
+version = "0.2.2"
 dependencies = [
  "anyhow",
  "approx",
@@ -2581,6 +2581,7 @@ dependencies = [
  "bson",
  "chrono",
  "clap",
+ "convert_case 0.6.0",
  "dashmap 6.0.1",
  "databake",
  "derive-docs",
@@ -2602,7 +2603,7 @@ dependencies = [
  "thiserror",
  "tokio",
  "tokio-tungstenite",
- "toml 0.8.14",
+ "toml 0.8.16",
  "tower-lsp",
  "ts-rs",
  "url",
@@ -2628,9 +2629,9 @@ dependencies = [
 
 [[package]]
 name = "kittycad"
-version = "0.3.7"
+version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1777b503442fa4666564cc3ab237d456df853a09648a4b2bb09622d25d021a5"
+checksum = "36b87a9cca545825ba18005c1944b8525fac28867d99984178bf22c79fb5ec25"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -2930,13 +2931,14 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.8.11"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
+checksum = "4569e456d394deccd22ce1c1913e6ea0e54519f577285001215d33557431afe4"
 dependencies = [
+ "hermit-abi",
  "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
@@ -3067,16 +3069,6 @@ dependencies = [
  "autocfg",
 ]
 
-[[package]]
-name = "num_cpus"
-version = "1.16.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
-dependencies = [
- "hermit-abi",
- "libc",
-]
-
 [[package]]
 name = "num_enum"
 version = "0.5.11"
@@ -3377,7 +3369,7 @@ dependencies = [
  "regex",
  "regex-syntax 0.8.3",
  "structmeta",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -3496,7 +3488,7 @@ dependencies = [
  "phf_shared 0.11.2",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -3564,7 +3556,7 @@ checksum = "2f38a4412a78282e09a2cf38d195ea5420d15ba0602cb375210efbc877243965"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4438,7 +4430,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde_derive_internals",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4558,7 +4550,7 @@ checksum = "e0cd7e117be63d3c3678776753929474f3b04a43a080c744d6b0ae2a8c28e222"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4569,17 +4561,18 @@ checksum = "330f01ce65a3a5fe59a60c82f3c9a024b573b8a6e875bd233fe5f934e71d54e3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.120"
+version = "1.0.121"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e0d21c9a8cae1235ad58a00c11cb40d4b1e5c784f1ef2c537876ed6ffd8b7c5"
+checksum = "4ab380d7d9f22ef3f21ad3e6c1ebe8e4fc7a2000ccba2e4d71fc96f15b2cb609"
 dependencies = [
  "indexmap 2.2.6",
  "itoa 1.0.11",
+ "memchr",
  "ryu",
  "serde",
 ]
@@ -4602,14 +4595,14 @@ checksum = "6c64451ba24fc7a6a2d60fc75dd9c83c90903b19028d4eff35e88fc1e86564e9"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
 name = "serde_spanned"
-version = "0.6.6"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79e674e01f999af37c49f70a6ede167a8a60b2503e56c5599532a65baa5969a0"
+checksum = "eb5b1b31579f3811bf615c144393417496f152e12ac8b7663bf664f4a815306d"
 dependencies = [
  "serde",
 ]
@@ -4623,7 +4616,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4665,7 +4658,7 @@ dependencies = [
  "darling",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4933,7 +4926,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "structmeta-derive",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4944,7 +4937,7 @@ checksum = "152a0b65a590ff6c3da95cabe2353ee04e6167c896b28e3b14478c2636c922fc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4966,7 +4959,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustversion",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -4999,9 +4992,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.71"
+version = "2.0.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b146dcf730474b4bcd16c311627b31ede9ab149045db4d6088b3becaea046462"
+checksum = "dc4b9b9bf2add8093d3f2c0204471e951b2285580335de42f9d2534f3ae7a8af"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -5017,7 +5010,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -5034,7 +5027,7 @@ checksum = "c8af7666ab7b6390ab78131fb5b0fce11d6b7a6951602017c35fa82800708971"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -5076,7 +5069,7 @@ dependencies = [
  "cfg-expr",
  "heck 0.5.0",
  "pkg-config",
- "toml 0.8.14",
+ "toml 0.8.16",
  "version-compare",
 ]
 
@@ -5229,7 +5222,7 @@ dependencies = [
  "serde_json",
  "tauri-utils",
  "tauri-winres",
- "toml 0.8.14",
+ "toml 0.8.16",
  "walkdir",
 ]
 
@@ -5251,7 +5244,7 @@ dependencies = [
  "serde",
  "serde_json",
  "sha2",
- "syn 2.0.71",
+ "syn 2.0.72",
  "tauri-utils",
  "thiserror",
  "time",
@@ -5269,7 +5262,7 @@ dependencies = [
  "heck 0.5.0",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "tauri-codegen",
  "tauri-utils",
 ]
@@ -5287,7 +5280,7 @@ dependencies = [
  "serde",
  "serde_json",
  "tauri-utils",
- "toml 0.8.14",
+ "toml 0.8.16",
  "walkdir",
 ]
 
@@ -5571,7 +5564,7 @@ dependencies = [
  "serde_with",
  "swift-rs",
  "thiserror",
- "toml 0.8.14",
+ "toml 0.8.16",
  "url",
  "urlpattern",
  "walkdir",
@@ -5627,22 +5620,22 @@ checksum = "8eaa81235c7058867fa8c0e7314f33dcce9c215f535d1913822a2b3f5e289f3c"
 
 [[package]]
 name = "thiserror"
-version = "1.0.62"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f2675633b1499176c2dff06b0856a27976a8f9d436737b4cf4f312d4d91d8bbb"
+checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.62"
+version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d20468752b09f49e909e55a5d338caa8bedf615594e9d80bc4c565d30faf798c"
+checksum = "a4558b58466b9ad7ca0f102865eccc95938dca1a74a856f2b57b6629050da261"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -5714,33 +5707,32 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.38.0"
+version = "1.39.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ba4f4a02a7a80d6f274636f0aa95c7e383b912d41fe721a31f29e29698585a4a"
+checksum = "daa4fb1bc778bd6f04cbfc4bb2d06a7396a8f299dc33ea1900cedaa316f467b1"
 dependencies = [
  "backtrace",
  "bytes",
  "libc",
  "mio",
- "num_cpus",
  "parking_lot 0.12.1",
  "pin-project-lite",
  "signal-hook-registry",
  "socket2",
  "tokio-macros",
  "tracing",
- "windows-sys 0.48.0",
+ "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "tokio-macros"
-version = "2.3.0"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5f5ae998a069d4b5aba8ee9dad856af7d520c3699e6159b185c2acd48155d39a"
+checksum = "693d596312e88961bc67d7f1f97af8a70227d9f90c31bba5806eec004978d752"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -5819,21 +5811,21 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.8.14"
+version = "0.8.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f49eb2ab21d2f26bd6db7bf383edc527a7ebaee412d17af4d40fdccd442f335"
+checksum = "81967dd0dd2c1ab0bc3468bd7caecc32b8a4aa47d0c8c695d8c2b2108168d62c"
 dependencies = [
  "serde",
  "serde_spanned",
  "toml_datetime",
- "toml_edit 0.22.14",
+ "toml_edit 0.22.17",
 ]
 
 [[package]]
 name = "toml_datetime"
-version = "0.6.6"
+version = "0.6.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4badfd56924ae69bcc9039335b2e017639ce3f9b001c393c1b2d1ef846ce2cbf"
+checksum = "f8fb9f64314842840f1d940ac544da178732128f1c78c21772e876579e0da1db"
 dependencies = [
  "serde",
 ]
@@ -5875,9 +5867,9 @@ dependencies = [
 
 [[package]]
 name = "toml_edit"
-version = "0.22.14"
+version = "0.22.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f21c7aaf97f1bd9ca9d4f9e73b0a6c74bd5afef56f2bc931943a6e1c37e04e38"
+checksum = "8d9f8729f5aea9562aac1cc0441f5d6de3cff1ee0c5d67293eeca5eb36ee7c16"
 dependencies = [
  "indexmap 2.2.6",
  "serde",
@@ -5940,7 +5932,7 @@ checksum = "84fd902d4e0b9a4b27f2f440108dc034e1758628a9b702f8ec61ad66355422fa"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -5969,7 +5961,7 @@ checksum = "34704c8d6ebcbc939824180af020566b01a7c01f80641264eba0999f6c2b6be7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -6099,7 +6091,7 @@ checksum = "c88cc88fd23b5a04528f3a8436024f20010a16ec18eb23c164b1242f65860130"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "termcolor",
 ]
 
@@ -6316,7 +6308,7 @@ dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -6415,7 +6407,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "wasm-bindgen-shared",
 ]
 
@@ -6449,7 +6441,7 @@ checksum = "e94f17b526d0a461a191c78ea52bbce64071ed5c04c9ffe424dcb38f74171bb7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -6590,7 +6582,7 @@ checksum = "ac1345798ecd8122468840bcdf1b95e5dc6d2206c5e4b0eafa078d061f59c9bc"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -6696,7 +6688,7 @@ checksum = "9107ddc059d5b6fbfbffdfa7a7fe3e22a226def0b2608f72e9d552763d3e1ad7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -6707,7 +6699,7 @@ checksum = "29bee4b38ea3cde66011baa44dba677c432a78593e202392d1e9070cf2a7fca7"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]
@@ -7159,7 +7151,7 @@ checksum = "9ce1b18ccd8e73a9321186f97e46f9f04b778851177567b1975109d26a08d2a6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.71",
+ "syn 2.0.72",
 ]
 
 [[package]]

src-tauri/Cargo.toml

@@ -15,7 +15,7 @@ tauri-build = { version = "2.0.0-beta.18", features = [] }
 
 [dependencies]
 anyhow = "1"
-kcl-lib = { version = "0.1.53", path = "../src/wasm-lib/kcl" }
+kcl-lib = { version = "0.2", path = "../src/wasm-lib/kcl" }
 kittycad = "0.3.7"
 log = "0.4.21"
 oauth2 = "4.4.2"

src-tauri/src/main.rs

@@ -218,7 +218,7 @@ async fn parse_project_route(configuration: Configuration, route: &str) -> Resul
 
 #[tauri::command]
 async fn read_dir_recursive(path: &str) -> Result<FileEntry, InvokeError> {
-    kcl_lib::settings::utils::walk_dir(&Path::new(path).to_path_buf())
+    kcl_lib::settings::utils::walk_dir(Path::new(path).to_path_buf())
         .await
         .map_err(InvokeError::from_anyhow)
 }

src/App.tsx

@@ -2,7 +2,7 @@ import { MouseEventHandler, useEffect, useMemo, useRef } from 'react'
 import { uuidv4 } from 'lib/utils'
 import { useHotKeyListener } from './hooks/useHotKeyListener'
 import { Stream } from './components/Stream'
-import { EngineCommand } from './lang/std/engineConnection'
+import { EngineCommand } from 'lang/std/artifactMap'
 import { throttle } from './lib/utils'
 import { AppHeader } from './components/AppHeader'
 import { useHotkeys } from 'react-hotkeys-hook'

src/Toolbar.tsx

@@ -329,9 +329,6 @@ const ToolbarItemContents = memo(function ToolbarItemContents({
                     target="_blank"
                     rel="noreferrer"
                     className="flex items-center rounded-sm p-1 no-underline text-inherit hover:bg-primary/10 hover:text-primary dark:hover:bg-chalkboard-70 dark:hover:text-inherit"
-                    onClickCapture={(e) =>
-                      e.nativeEvent.stopImmediatePropagation()
-                    }
                   >
                     <span className="flex-1">Open {link.label}</span>
                     <CustomIcon name="link" className="w-4 h-4" />

src/clientSideScene/CameraControls.ts

@@ -17,11 +17,11 @@ import {
   ZOOM_MAGIC_NUMBER,
 } from './sceneInfra'
 import {
-  EngineCommand,
   Subscription,
   EngineCommandManager,
   UnreliableSubscription,
 } from 'lang/std/engineConnection'
+import { EngineCommand } from 'lang/std/artifactMap'
 import { uuidv4 } from 'lib/utils'
 import { deg2Rad } from 'lib/utils2d'
 import { isReducedMotion, roundOff, throttle } from 'lib/utils'
@@ -585,10 +585,6 @@ export class CameraControls {
       .add(direction.multiplyScalar(-distanceAfter))
     this.camera.position.copy(newPosition)
 
-    const { z_near, z_far } = calculateNearFarFromFOV(this.lastPerspectiveFov)
-    this.camera.near = z_near
-    this.camera.far = z_far
-
     if (splitEngineCalls) {
       await this.engineCommandManager.sendSceneCommand({
         type: 'modeling_cmd_req',
@@ -1144,9 +1140,6 @@ function convertThreeCamValuesToEngineCam({
   up: Vector3
   vantage: Vector3
 } {
-  // Something to consider is that the orbit controls have a target,
-  // we're kind of deriving the target/lookAtVector here when it might not be needed
-  // leaving for now since it's working but maybe revisit later
   const euler = new Euler().setFromQuaternion(quaternion, 'XYZ')
 
   const upVector = new Vector3(0, 1, 0).applyEuler(euler).normalize()
@@ -1157,18 +1150,50 @@ function convertThreeCamValuesToEngineCam({
       vantage: position,
     }
   }
-  const lookAtVector = new Vector3(0, 0, -1)
-    .applyEuler(euler)
-    .normalize()
-    .add(position)
-  const fudgeFactor2 = zoom * 0.9979224466814468 - 0.03473692325839295
-  const zoomFactor = (-ZOOM_MAGIC_NUMBER + fudgeFactor2) / zoom
-  const direction = lookAtVector.clone().sub(position).normalize()
-  const newVantage = position.clone().add(direction.multiplyScalar(zoomFactor))
+
+  // re-implementing stuff here, though this is a bunch of Mike's code
+  // if we need to pull him in again, at least it will be familiar to him
+  // and it's all simple functions.
+  interface Coord3d {
+    x: number
+    y: number
+    z: number
+  }
+
+  function buildLookAt(distance: number, center: Coord3d, eye: Coord3d) {
+    const eyeVector = normalized(sub(eye, center))
+    return { center: center, eye: add(center, mult(eyeVector, distance)) }
+  }
+
+  function mult(vecA: Coord3d, sc: number): Coord3d {
+    return { x: vecA.x * sc, y: vecA.y * sc, z: vecA.z * sc }
+  }
+
+  function add(vecA: Coord3d, vecB: Coord3d): Coord3d {
+    return { x: vecA.x + vecB.x, y: vecA.y + vecB.y, z: vecA.z + vecB.z }
+  }
+
+  function sub(vecA: Coord3d, vecB: Coord3d): Coord3d {
+    return { x: vecA.x - vecB.x, y: vecA.y - vecB.y, z: vecA.z - vecB.z }
+  }
+
+  function dot(vecA: Coord3d, vecB: Coord3d) {
+    return vecA.x * vecB.x + vecA.y * vecB.y + vecA.z * vecB.z
+  }
+
+  function length(vecA: Coord3d) {
+    return Math.sqrt(dot(vecA, vecA))
+  }
+
+  function normalized(vecA: Coord3d) {
+    return mult(vecA, 1.0 / length(vecA))
+  }
+
+  const lookAt = buildLookAt(64 / zoom, target, position)
   return {
-    center: lookAtVector,
-    up: upVector,
-    vantage: newVantage,
+    center: new Vector3(lookAt.center.x, lookAt.center.y, lookAt.center.z),
+    up: new Vector3(0, 0, 1),
+    vantage: new Vector3(lookAt.eye.x, lookAt.eye.y, lookAt.eye.z),
   }
 }
 
@@ -1224,7 +1249,7 @@ export async function letEngineAnimateAndSyncCamAfter(
       type: 'enable_sketch_mode',
       adjust_camera: true,
       animated: !isReducedMotion(),
-      ortho: false,
+      ortho: true,
       entity_id: entityId,
     },
   })
@@ -1241,25 +1266,4 @@ export async function letEngineAnimateAndSyncCamAfter(
       type: 'default_camera_get_settings',
     },
   })
-  await engineCommandManager.sendSceneCommand({
-    type: 'modeling_cmd_req',
-    cmd_id: uuidv4(),
-    cmd: {
-      type: 'enable_sketch_mode',
-      adjust_camera: true,
-      animated: false,
-      ortho: true,
-      entity_id: entityId,
-    },
-  })
-  await new Promise((resolve) => setTimeout(resolve, 50))
-  await engineCommandManager.sendSceneCommand({
-    // CameraControls subscribes to default_camera_get_settings response events
-    // firing this at connection ensure the camera's are synced initially
-    type: 'modeling_cmd_req',
-    cmd_id: uuidv4(),
-    cmd: {
-      type: 'default_camera_get_settings',
-    },
-  })
 }

src/clientSideScene/sceneEntities.ts

@@ -95,10 +95,7 @@ import { createGridHelper, orthoScale, perspScale } from './helpers'
 import { Models } from '@kittycad/lib'
 import { uuidv4 } from 'lib/utils'
 import { SegmentOverlayPayload, SketchDetails } from 'machines/modelingMachine'
-import {
-  ArtifactMapCommand,
-  EngineCommandManager,
-} from 'lang/std/engineConnection'
+import { EngineCommandManager } from 'lang/std/engineConnection'
 import {
   getRectangleCallExpressions,
   updateRectangleSketch,
@@ -538,7 +535,7 @@ export class SceneEntities {
     segmentName: 'line' | 'tangentialArcTo' = 'line',
     shouldTearDown = true
   ) => {
-    const _ast = JSON.parse(JSON.stringify(kclManager.ast))
+    const _ast = structuredClone(kclManager.ast)
 
     const _node1 = getNodeFromPath<VariableDeclaration>(
       _ast,
@@ -697,7 +694,7 @@ export class SceneEntities {
     sketchOrigin: [number, number, number],
     rectangleOrigin: [x: number, y: number]
   ) => {
-    let _ast = JSON.parse(JSON.stringify(kclManager.ast))
+    let _ast = structuredClone(kclManager.ast)
 
     const _node1 = getNodeFromPath<VariableDeclaration>(
       _ast,
@@ -728,7 +725,9 @@ export class SceneEntities {
       ...getRectangleCallExpressions(rectangleOrigin, tags),
     ])
 
-    _ast = parse(recast(_ast))
+    let _recastAst = parse(recast(_ast))
+    if (trap(_recastAst)) return Promise.reject(_recastAst)
+    _ast = _recastAst
 
     const { programMemoryOverride, truncatedAst } = await this.setupSketch({
       sketchPathToNode,
@@ -742,7 +741,7 @@ export class SceneEntities {
     sceneInfra.setCallbacks({
       onMove: async (args) => {
         // Update the width and height of the draft rectangle
-        const pathToNodeTwo = JSON.parse(JSON.stringify(sketchPathToNode))
+        const pathToNodeTwo = structuredClone(sketchPathToNode)
         pathToNodeTwo[1][0] = 0
 
         const _node = getNodeFromPath<VariableDeclaration>(
@@ -804,7 +803,9 @@ export class SceneEntities {
         if (sketchInit.type === 'PipeExpression') {
           updateRectangleSketch(sketchInit, x, y, tags[0])
 
-          _ast = parse(recast(_ast))
+          let _recastAst = parse(recast(_ast))
+          if (trap(_recastAst)) return Promise.reject(_recastAst)
+          _ast = _recastAst
 
           // Update the primary AST and unequip the rectangle tool
           await kclManager.executeAstMock(_ast)
@@ -1008,10 +1009,14 @@ export class SceneEntities {
       PROFILE_START,
     ])
     if (!group) return
-    const pathToNode: PathToNode = JSON.parse(
-      JSON.stringify(group.userData.pathToNode)
-    )
-    const varDecIndex = JSON.parse(JSON.stringify(pathToNode[1][0]))
+    const pathToNode: PathToNode = structuredClone(group.userData.pathToNode)
+    const varDecIndex = pathToNode[1][0]
+    if (typeof varDecIndex !== 'number') {
+      console.error(
+        `Expected varDecIndex to be a number, but found: ${typeof varDecIndex} ${varDecIndex}`
+      )
+      return
+    }
     if (draftInfo) {
       pathToNode[1][0] = 0
     }
@@ -1561,26 +1566,25 @@ export class SceneEntities {
         // If we clicked on an extrude wall, we climb up the parent Id
         // to get the sketch profile's face ID. If we clicked on an endcap,
         // we already have it.
-        const targetId =
-          'additionalData' in artifact &&
-          artifact.additionalData?.type === 'cap'
-            ? _entity_id
-            : artifact.parentId
+        const pathId =
+          artifact?.type === 'extrudeWall' || artifact?.type === 'extrudeCap'
+            ? artifact.pathId
+            : ''
 
         // tsc cannot infer that target can have extrusions
         // from the commandType (why?) so we need to cast it
-        const target = this.engineCommandManager.artifactMap?.[
-          targetId || ''
-        ] as ArtifactMapCommand & { extrusions?: string[] }
+        const path = this.engineCommandManager.artifactMap?.[pathId || '']
+        const extrusionId =
+          path?.type === 'startPath' ? path.extrusionIds[0] : ''
 
         // TODO: We get the first extrusion command ID,
         // which is fine while backend systems only support one extrusion.
         // but we need to more robustly handle resolving to the correct extrusion
         // if there are multiple.
-        const extrusions =
-          this.engineCommandManager.artifactMap?.[target?.extrusions?.[0] || '']
+        const extrusions = this.engineCommandManager.artifactMap?.[extrusionId]
 
-        if (artifact?.commandType !== 'solid3d_get_extrusion_face_info') return
+        if (artifact?.type !== 'extrudeCap' && artifact?.type !== 'extrudeWall')
+          return
 
         const faceInfo = await getFaceDetails(_entity_id)
         if (!faceInfo?.origin || !faceInfo?.z_axis || !faceInfo?.y_axis) return
@@ -1605,10 +1609,7 @@ export class SceneEntities {
             ) as [number, number, number],
             sketchPathToNode,
             extrudePathToNode,
-            cap:
-              artifact?.additionalData?.type === 'cap'
-                ? artifact.additionalData.info
-                : 'none',
+            cap: artifact.type === 'extrudeCap' ? artifact.cap : 'none',
             faceId: _entity_id,
           },
         })
@@ -1762,7 +1763,7 @@ function prepareTruncatedMemoryAndAst(
     }
   | Error {
   const bodyIndex = Number(sketchPathToNode?.[1]?.[0]) || 0
-  const _ast = JSON.parse(JSON.stringify(ast))
+  const _ast = structuredClone(ast)
 
   const _node = getNodeFromPath<VariableDeclaration>(
     _ast,
@@ -1821,7 +1822,7 @@ function prepareTruncatedMemoryAndAst(
   }
   const truncatedAst: Program = {
     ..._ast,
-    body: [JSON.parse(JSON.stringify(_ast.body[bodyIndex]))],
+    body: [structuredClone(_ast.body[bodyIndex])],
   }
 
   // Grab all the TagDeclarators and TagIdentifiers from memory.
@@ -1855,10 +1856,7 @@ function prepareTruncatedMemoryAndAst(
     if (!memoryItem) {
       continue
     }
-    const error = programMemoryOverride.set(
-      name,
-      JSON.parse(JSON.stringify(memoryItem))
-    )
+    const error = programMemoryOverride.set(name, structuredClone(memoryItem))
     if (err(error)) return error
   }
   return {

src/components/ModelingMachineProvider.tsx

@@ -68,7 +68,6 @@ import { EditorSelection, Transaction } from '@codemirror/state'
 import { useSearchParams } from 'react-router-dom'
 import { letEngineAnimateAndSyncCamAfter } from 'clientSideScene/CameraControls'
 import { getVarNameModal } from 'hooks/useToolbarGuards'
-import { uuidv4 } from 'lib/utils'
 import { err, trap } from 'lib/trap'
 import { useCommandsContext } from 'hooks/useCommandsContext'
 import { modelingMachineEvent } from 'editor/manager'
@@ -133,47 +132,12 @@ export const ModelingMachineProvider = ({
           ;(async () => {
             // blocks entering a sketch until after exit sketch code has run
             kclManager.isExecuting = true
+            sceneInfra.camControls.syncDirection = 'clientToEngine'
 
             await sceneInfra.camControls.snapToPerspectiveBeforeHandingBackControlToEngine()
 
             sceneInfra.camControls.syncDirection = 'engineToClient'
 
-            const resp = await engineCommandManager.sendSceneCommand({
-              type: 'modeling_cmd_req',
-              cmd_id: uuidv4(),
-              cmd: {
-                type: 'default_camera_get_settings',
-              },
-            })
-
-            const settings =
-              resp &&
-              resp.success &&
-              resp.resp.type === 'modeling' &&
-              resp.resp.data.modeling_response.type ===
-                'default_camera_get_settings'
-                ? resp.resp.data.modeling_response.data.settings
-                : ({} as Models['DefaultCameraGetSettings_type']['settings'])
-
-            if (settings.up.z !== 1) {
-              // workaround for gimbal lock situation
-              await engineCommandManager.sendSceneCommand({
-                type: 'modeling_cmd_req',
-                cmd_id: uuidv4(),
-                cmd: {
-                  type: 'default_camera_look_at',
-                  center: settings.center,
-                  vantage: {
-                    ...settings.pos,
-                    y:
-                      settings.pos.y +
-                      (settings.center.z - settings.pos.z > 0 ? 2 : -2),
-                  },
-                  up: { x: 0, y: 0, z: 1 },
-                },
-              })
-            }
-
             store.videoElement?.pause()
             kclManager.executeCode().then(() => {
               if (engineCommandManager.engineConnection?.idleMode) return
@@ -495,7 +459,7 @@ export const ModelingMachineProvider = ({
           if (kclManager.ast.body.length) {
             // this assumes no changes have been made to the sketch besides what we did when entering the sketch
             // i.e. doesn't account for user's adding code themselves, maybe we need store a flag userEditedSinceSketchMode?
-            const newAst: Program = JSON.parse(JSON.stringify(kclManager.ast))
+            const newAst = structuredClone(kclManager.ast)
             const varDecIndex = sketchDetails.sketchPathToNode[1][0]
             // remove body item at varDecIndex
             newAst.body = newAst.body.filter((_, i) => i !== varDecIndex)

src/components/ModelingSidebar/ModelingSidebar.tsx

@@ -136,7 +136,6 @@ export function ModelingSidebar({ paneOpacity }: ModelingSidebarProps) {
                   iconClassName: action.iconClassName,
                   iconSize: 'md',
                 }}
-                paneIsOpen={false}
                 onClick={action.action}
               />
             ))}
@@ -186,7 +185,7 @@ interface ModelingPaneButtonProps
     iconSize?: 'sm' | 'md' | 'lg'
   }
   onClick: () => void
-  paneIsOpen: boolean
+  paneIsOpen?: boolean
 }
 
 function ModelingPaneButton({
@@ -220,12 +219,20 @@ function ModelingPaneButton({
           'rounded-sm ' + (paneIsOpen ? '!bg-primary' : '!bg-transparent')
         }
       />
-      <span className="sr-only">{paneConfig.title} pane</span>
-      <Tooltip position="right" hoverOnly>
-        <span className="flex-1">{paneConfig.title} pane: </span>
-        <span className="hotkey text-xs capitalize">
-          {paneConfig.keybinding}
+      <span className="sr-only">
+        {paneConfig.title}
+        {paneIsOpen !== undefined ? ` pane` : ''}
+      </span>
+      <Tooltip
+        position="right"
+        contentClassName="max-w-none flex items-center gap-4"
+        hoverOnly
+      >
+        <span className="flex-1">
+          {paneConfig.title}
+          {paneIsOpen !== undefined ? ` pane` : ''}
         </span>
+        <kbd className="hotkey text-xs capitalize">{paneConfig.keybinding}</kbd>
       </Tooltip>
     </button>
   )

src/components/Toolbar/Intersect.tsx

@@ -145,7 +145,7 @@ export async function applyConstraintIntersect({
   const { transforms, forcedSelectionRanges } = info
 
   const transform1 = transformSecondarySketchLinesTagFirst({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges: forcedSelectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,

src/components/Toolbar/SetAbsDistance.tsx

@@ -106,7 +106,7 @@ export async function applyConstraintAbsDistance({
   const transformInfos = info.transforms
 
   const transform1 = transformAstSketchLines({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges: selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,
@@ -128,7 +128,7 @@ export async function applyConstraintAbsDistance({
   )
 
   const transform2 = transformAstSketchLines({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges: selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,
@@ -176,7 +176,7 @@ export function applyConstraintAxisAlign({
   let finalValue = createIdentifier('ZERO')
 
   return transformAstSketchLines({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges: selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,

src/components/Toolbar/SetAngleBetween.tsx

@@ -100,7 +100,7 @@ export async function applyConstraintAngleBetween({
   const transformInfos = info.transforms
 
   const transformed1 = transformSecondarySketchLinesTagFirst({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,

src/components/Toolbar/SetHorzVertDistance.tsx

@@ -108,7 +108,7 @@ export async function applyConstraintHorzVertDistance({
   if (err(info)) return Promise.reject(info)
   const transformInfos = info.transforms
   const transformed = transformSecondarySketchLinesTagFirst({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges,
     transformInfos,
     programMemory: kclManager.programMemory,

src/components/Toolbar/setAngleLength.tsx

@@ -84,7 +84,7 @@ export async function applyConstraintAngleLength({
 
   const { transforms } = angleLength
   const sketched = transformAstSketchLines({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,
@@ -139,7 +139,7 @@ export async function applyConstraintAngleLength({
   }
 
   const retval = transformAstSketchLines({
-    ast: JSON.parse(JSON.stringify(kclManager.ast)),
+    ast: structuredClone(kclManager.ast),
     selectionRanges,
     transformInfos: transforms,
     programMemory: kclManager.programMemory,

src/editor/manager.ts

@@ -6,11 +6,7 @@ import { Selections, processCodeMirrorRanges, Selection } from 'lib/selections'
 import { undo, redo } from '@codemirror/commands'
 import { CommandBarMachineEvent } from 'machines/commandBarMachine'
 import { addLineHighlight, addLineHighlightEvent } from './highlightextension'
-import {
-  forEachDiagnostic,
-  Diagnostic,
-  setDiagnosticsEffect,
-} from '@codemirror/lint'
+import { Diagnostic, setDiagnosticsEffect } from '@codemirror/lint'
 
 const updateOutsideEditorAnnotation = Annotation.define<boolean>()
 export const updateOutsideEditorEvent = updateOutsideEditorAnnotation.of(true)
@@ -114,12 +110,20 @@ export default class EditorManager {
     }
   }
 
-  clearDiagnostics(): void {
-    this.setDiagnostics([])
-  }
-
   setDiagnostics(diagnostics: Diagnostic[]): void {
     if (!this._editorView) return
+    // Clear out any existing diagnostics that are the same.
+    for (const diagnostic of diagnostics) {
+      for (const otherDiagnostic of diagnostics) {
+        if (diagnosticIsEqual(diagnostic, otherDiagnostic)) {
+          diagnostics = diagnostics.filter(
+            (d) => !diagnosticIsEqual(d, diagnostic)
+          )
+          diagnostics.push(diagnostic)
+          break
+        }
+      }
+    }
 
     this._editorView.dispatch({
       effects: [setDiagnosticsEffect.of(diagnostics)],
@@ -131,26 +135,6 @@ export default class EditorManager {
     })
   }
 
-  addDiagnostics(diagnostics: Diagnostic[]): void {
-    if (!this._editorView) return
-
-    forEachDiagnostic(this._editorView.state, function (diag) {
-      diagnostics.push(diag)
-    })
-
-    const uniqueDiagnostics = new Set<Diagnostic>()
-    diagnostics.forEach((diagnostic) => {
-      for (const knownDiagnostic of uniqueDiagnostics.values()) {
-        if (diagnosticIsEqual(diagnostic, knownDiagnostic)) {
-          return
-        }
-      }
-      uniqueDiagnostics.add(diagnostic)
-    })
-
-    this.setDiagnostics([...uniqueDiagnostics])
-  }
-
   undo() {
     if (this._editorView) {
       undo(this._editorView)

src/lang/KclSingleton.ts

@@ -5,7 +5,6 @@ import { uuidv4 } from 'lib/utils'
 import { EngineCommandManager } from './std/engineConnection'
 import { err } from 'lib/trap'
 
-import { deferExecution } from 'lib/utils'
 import {
   CallExpression,
   initPromise,
@@ -18,6 +17,7 @@ import {
 } from 'lang/wasm'
 import { getNodeFromPath } from './queryAst'
 import { codeManager, editorManager, sceneInfra } from 'lib/singletons'
+import { Diagnostic } from '@codemirror/lint'
 
 export class KclManager {
   private _ast: Program = {
@@ -33,6 +33,7 @@ export class KclManager {
   }
   private _programMemory: ProgramMemory = ProgramMemory.empty()
   private _logs: string[] = []
+  private _lints: Diagnostic[] = []
   private _kclErrors: KCLError[] = []
   private _isExecuting = false
   private _wasmInitFailed = true
@@ -73,16 +74,36 @@ export class KclManager {
     this._logsCallBack(logs)
   }
 
+  get lints() {
+    return this._lints
+  }
+
+  set lints(lints) {
+    if (lints === this._lints) return
+    this._lints = lints
+    // Run the lints through the diagnostics.
+    this.kclErrors = this._kclErrors
+  }
+
   get kclErrors() {
     return this._kclErrors
   }
   set kclErrors(kclErrors) {
+    if (kclErrors === this._kclErrors && this.lints.length === 0) return
     this._kclErrors = kclErrors
     let diagnostics = kclErrorsToDiagnostics(kclErrors)
-    editorManager.addDiagnostics(diagnostics)
+    if (this.lints.length > 0) {
+      diagnostics = diagnostics.concat(this.lints)
+    }
+    editorManager.setDiagnostics(diagnostics)
     this._kclErrorsCallBack(kclErrors)
   }
 
+  addKclErrors(kclErrors: KCLError[]) {
+    if (kclErrors.length === 0) return
+    this.kclErrors = this.kclErrors.concat(kclErrors)
+  }
+
   get isExecuting() {
     return this._isExecuting
   }
@@ -149,12 +170,12 @@ export class KclManager {
 
   safeParse(code: string): Program | null {
     const ast = parse(code)
+    this.lints = []
     this.kclErrors = []
     if (!err(ast)) return ast
     const kclerror: KCLError = ast as KCLError
 
-    console.error('error parsing code', kclerror)
-    this.kclErrors = [kclerror]
+    this.addKclErrors([kclerror])
     // TODO: re-eval if session should end?
     if (kclerror.msg === 'file is empty')
       this.engineCommandManager?.endSession()
@@ -191,13 +212,15 @@ export class KclManager {
     this._cancelTokens.set(currentExecutionId, false)
 
     this.isExecuting = true
+    // Make sure we clear before starting again. End session will do this.
+    this.engineCommandManager?.endSession()
     await this.ensureWasmInit()
     const { logs, errors, programMemory } = await executeAst({
       ast,
       engineCommandManager: this.engineCommandManager,
     })
 
-    editorManager.addDiagnostics(await lintAst({ ast: ast }))
+    this.lints = await lintAst({ ast: ast })
 
     sceneInfra.modelingSend({ type: 'code edit during sketch' })
     defaultSelectionFilter(programMemory, this.engineCommandManager)
@@ -229,7 +252,7 @@ export class KclManager {
       return
     }
     this.logs = logs
-    this.kclErrors = errors
+    this.addKclErrors(errors)
     this.programMemory = programMemory
     this.ast = { ...ast }
     this._executeCallback()
@@ -273,8 +296,6 @@ export class KclManager {
       useFakeExecutor: true,
     })
 
-    editorManager.addDiagnostics(await lintAst({ ast: ast }))
-
     this._logs = logs
     this._kclErrors = errors
     this._programMemory = programMemory
@@ -306,7 +327,6 @@ export class KclManager {
     })
   }
   async executeCode(zoomToFit?: boolean): Promise<void> {
-    console.log('[kcl/KclSingleton] executeCode')
     const ast = this.safeParse(codeManager.code)
     if (!ast) {
       this.clearAst()

src/lang/abstractSyntaxTree.test.ts

@@ -423,7 +423,7 @@ describe('testing pipe operator special', () => {
   test('pipe operator with sketch', () => {
     let code = `const mySketch = startSketchAt([0, 0])
   |> lineTo([2, 3], %)
-  |> lineTo([0, 1], %, "myPath")
+  |> lineTo([0, 1], %, $myPath)
   |> lineTo([1, 1], %)
   |> rx(45, %)
 `
@@ -435,14 +435,14 @@ describe('testing pipe operator special', () => {
       {
         type: 'VariableDeclaration',
         start: 0,
-        end: 132,
+        end: 131,
         kind: 'const',
         digest: null,
         declarations: [
           {
             type: 'VariableDeclarator',
             start: 6,
-            end: 132,
+            end: 131,
             id: {
               type: 'Identifier',
               start: 6,
@@ -454,7 +454,7 @@ describe('testing pipe operator special', () => {
             init: {
               type: 'PipeExpression',
               start: 17,
-              end: 132,
+              end: 131,
               digest: null,
               body: [
                 {
@@ -546,7 +546,7 @@ describe('testing pipe operator special', () => {
                 {
                   type: 'CallExpression',
                   start: 67,
-                  end: 94,
+                  end: 93,
                   digest: null,
                   callee: {
                     type: 'Identifier',
@@ -589,7 +589,7 @@ describe('testing pipe operator special', () => {
                     {
                       type: 'TagDeclarator',
                       start: 85,
-                      end: 93,
+                      end: 92,
                       value: 'myPath',
                       digest: null,
                     },
@@ -598,35 +598,35 @@ describe('testing pipe operator special', () => {
                 },
                 {
                   type: 'CallExpression',
-                  start: 100,
-                  end: 117,
+                  start: 99,
+                  end: 116,
                   digest: null,
                   callee: {
                     type: 'Identifier',
-                    start: 100,
-                    end: 106,
+                    start: 99,
+                    end: 105,
                     name: 'lineTo',
                     digest: null,
                   },
                   arguments: [
                     {
                       type: 'ArrayExpression',
-                      start: 107,
-                      end: 113,
+                      start: 106,
+                      end: 112,
                       digest: null,
                       elements: [
                         {
                           type: 'Literal',
-                          start: 108,
-                          end: 109,
+                          start: 107,
+                          end: 108,
                           value: 1,
                           raw: '1',
                           digest: null,
                         },
                         {
                           type: 'Literal',
-                          start: 111,
-                          end: 112,
+                          start: 110,
+                          end: 111,
                           value: 1,
                           raw: '1',
                           digest: null,
@@ -635,8 +635,8 @@ describe('testing pipe operator special', () => {
                     },
                     {
                       type: 'PipeSubstitution',
-                      start: 115,
-                      end: 116,
+                      start: 114,
+                      end: 115,
                       digest: null,
                     },
                   ],
@@ -644,29 +644,29 @@ describe('testing pipe operator special', () => {
                 },
                 {
                   type: 'CallExpression',
-                  start: 123,
-                  end: 132,
+                  start: 122,
+                  end: 131,
                   digest: null,
                   callee: {
                     type: 'Identifier',
-                    start: 123,
-                    end: 125,
+                    start: 122,
+                    end: 124,
                     name: 'rx',
                     digest: null,
                   },
                   arguments: [
                     {
                       type: 'Literal',
-                      start: 126,
-                      end: 128,
+                      start: 125,
+                      end: 127,
                       value: 45,
                       raw: '45',
                       digest: null,
                     },
                     {
                       type: 'PipeSubstitution',
-                      start: 130,
-                      end: 131,
+                      start: 129,
+                      end: 130,
                       digest: null,
                     },
                   ],
@@ -1782,11 +1782,11 @@ const key = 'c'`
   })
   it('comments nested within a block statement', () => {
     const code = `const mySketch = startSketchAt([0,0])
-  |> lineTo([0, 1], %, 'myPath')
+  |> lineTo([0, 1], %, $myPath)
   |> lineTo([1, 1], %) /* this is
       a comment
       spanning a few lines */
-  |> lineTo([1,0], %, "rightPath")
+  |> lineTo([1,0], %, $rightPath)
   |> close(%)
 `
 
@@ -1798,8 +1798,8 @@ const key = 'c'`
       .nonCodeNodes
     expect(sketchNonCodeMeta[indexOfSecondLineToExpression][0]).toEqual({
       type: 'NonCodeNode',
-      start: 93,
-      end: 150,
+      start: 92,
+      end: 149,
       digest: null,
       value: {
         type: 'inlineComment',
@@ -1812,7 +1812,7 @@ const key = 'c'`
     const code = [
       'const mySk1 = startSketchAt([0, 0])',
       '  |> lineTo([1, 1], %)',
-      '  |> lineTo([0, 1], %, "myPath")',
+      '  |> lineTo([0, 1], %, $myPath)',
       '  |> lineTo([1, 1], %)',
       '// a comment',
       '  |> rx(90, %)',
@@ -1825,8 +1825,8 @@ const key = 'c'`
       .nonCodeNodes[3][0]
     expect(sketchNonCodeMeta).toEqual({
       type: 'NonCodeNode',
-      start: 114,
-      end: 127,
+      start: 113,
+      end: 126,
       digest: null,
       value: {
         type: 'blockComment',
@@ -1968,7 +1968,7 @@ describe('testing nested call expressions', () => {
 })
 
 describe('should recognise callExpresions in binaryExpressions', () => {
-  const code = "xLineTo(segEndX('seg02', %) + 1, %)"
+  const code = 'xLineTo(segEndX(seg02) + 1, %)'
   it('should recognise the callExp', () => {
     const ast = parse(code)
     if (err(ast)) throw ast
@@ -1979,12 +1979,12 @@ describe('should recognise callExpresions in binaryExpressions', () => {
         type: 'BinaryExpression',
         operator: '+',
         start: 8,
-        end: 31,
+        end: 26,
         digest: null,
         left: {
           type: 'CallExpression',
           start: 8,
-          end: 27,
+          end: 22,
           digest: null,
           callee: {
             type: 'Identifier',
@@ -1997,11 +1997,10 @@ describe('should recognise callExpresions in binaryExpressions', () => {
             {
               type: 'Identifier',
               start: 16,
-              end: 23,
+              end: 21,
               name: 'seg02',
               digest: null,
             },
-            { type: 'PipeSubstitution', start: 25, end: 26, digest: null },
           ],
           optional: false,
         },
@@ -2009,12 +2008,12 @@ describe('should recognise callExpresions in binaryExpressions', () => {
           type: 'Literal',
           value: 1,
           raw: '1',
-          start: 30,
-          end: 31,
+          start: 25,
+          end: 26,
           digest: null,
         },
       },
-      { type: 'PipeSubstitution', start: 33, end: 34, digest: null },
+      { type: 'PipeSubstitution', start: 28, end: 29, digest: null },
     ])
   })
 })

src/lang/artifact.test.ts

@@ -195,6 +195,7 @@ const sk2 = startSketchOn('XY')
               ],
               type: 'TagIdentifier',
               value: 'p',
+              info: expect.any(Object),
             },
           },
           value: [
@@ -288,6 +289,7 @@ const sk2 = startSketchOn('XY')
               ],
               type: 'TagIdentifier',
               value: 'o',
+              info: expect.any(Object),
             },
           },
           value: [

src/lang/codeManager.ts

@@ -65,6 +65,7 @@ export default class CodeManager {
         this._hotkeys[key]()
         return false
       },
+      preventDefault: true,
     }))
   }
 

src/lang/executor.test.ts

@@ -45,9 +45,9 @@ const newVar = myVar + 1`
   it('sketch declaration', async () => {
     let code = `const mySketch = startSketchOn('XY')
   |> startProfileAt([0,0], %)
-  |> lineTo([0,2], %, "myPath")
+  |> lineTo([0,2], %, $myPath)
   |> lineTo([2,3], %)
-  |> lineTo([5,-1], %, "rightPath")
+  |> lineTo([5,-1], %, $rightPath)
   // |> close(%)
 `
     const mem = await exe(code)
@@ -59,11 +59,11 @@ const newVar = myVar + 1`
         to: [0, 2],
         from: [0, 0],
         __geoMeta: {
-          sourceRange: [72, 98],
+          sourceRange: [72, 97],
           id: expect.any(String),
         },
         tag: {
-          end: 97,
+          end: 96,
           start: 89,
           type: 'TagDeclarator',
           value: 'myPath',
@@ -76,7 +76,7 @@ const newVar = myVar + 1`
         from: [0, 2],
         tag: null,
         __geoMeta: {
-          sourceRange: [104, 120],
+          sourceRange: [103, 119],
           id: expect.any(String),
         },
       },
@@ -85,12 +85,12 @@ const newVar = myVar + 1`
         to: [5, -1],
         from: [2, 3],
         __geoMeta: {
-          sourceRange: [126, 156],
+          sourceRange: [125, 154],
           id: expect.any(String),
         },
         tag: {
-          end: 155,
-          start: 144,
+          end: 153,
+          start: 143,
           type: 'TagDeclarator',
           value: 'rightPath',
           digest: null,
@@ -140,7 +140,7 @@ const newVar = myVar + 1`
       "const mySk1 = startSketchOn('XY')",
       '  |> startProfileAt([0,0], %)',
       '  |> lineTo([1,1], %)',
-      '  |> lineTo([0, 1], %, "myPath")',
+      '  |> lineTo([0, 1], %, $myPath)',
       '  |> lineTo([1,1], %)',
       // '  |> rx(90, %)',
     ].join('\n')
@@ -161,11 +161,12 @@ const newVar = myVar + 1`
         myPath: {
           __meta: [
             {
-              sourceRange: [109, 117],
+              sourceRange: [109, 116],
             },
           ],
           type: 'TagIdentifier',
           value: 'myPath',
+          info: expect.any(Object),
         },
       },
       value: [
@@ -184,11 +185,11 @@ const newVar = myVar + 1`
           to: [0, 1],
           from: [1, 1],
           __geoMeta: {
-            sourceRange: [91, 118],
+            sourceRange: [91, 117],
             id: expect.any(String),
           },
           tag: {
-            end: 117,
+            end: 116,
             start: 109,
             type: 'TagDeclarator',
             value: 'myPath',
@@ -201,7 +202,7 @@ const newVar = myVar + 1`
           from: [0, 1],
           tag: null,
           __geoMeta: {
-            sourceRange: [124, 140],
+            sourceRange: [123, 139],
             id: expect.any(String),
           },
         },
@@ -367,21 +368,21 @@ describe('testing math operators', () => {
       `const myVar = 3`,
       `const part001 = startSketchOn('XY')`,
       `  |> startProfileAt([0, 0], %)`,
-      `  |> line([3, 4], %, 'seg01')`,
+      `  |> line([3, 4], %, $seg01)`,
       `  |> line([`,
-      `  min(segLen('seg01', %), myVar),`,
-      `  -legLen(segLen('seg01', %), myVar)`,
+      `  min(segLen(seg01), myVar),`,
+      `  -legLen(segLen(seg01), myVar)`,
       `], %)`,
       ``,
     ].join('\n')
     const mem = await exe(code)
     const sketch = mem.get('part001')
-    // expect -legLen(segLen('seg01', %), myVar) to equal -4 setting the y value back to 0
+    // expect -legLen(segLen('seg01'), myVar) to equal -4 setting the y value back to 0
     expect((sketch as SketchGroup).value?.[1]?.from).toEqual([3, 4])
     expect((sketch as SketchGroup).value?.[1]?.to).toEqual([6, 0])
     const removedUnaryExp = code.replace(
-      `-legLen(segLen('seg01', %), myVar)`,
-      `legLen(segLen('seg01', %), myVar)`
+      `-legLen(segLen(seg01), myVar)`,
+      `legLen(segLen(seg01), myVar)`
     )
     const removedUnaryExpMem = await exe(removedUnaryExp)
     const removedUnaryExpMemSketch = removedUnaryExpMem.get('part001')

src/lang/getNodePathFromSourceRange.test.ts

@@ -12,10 +12,10 @@ describe('testing getNodePathFromSourceRange', () => {
 const myVar = 5
 const sk3 = startSketchAt([0, 0])
   |> lineTo([1, 2], %)
-  |> lineTo([3, 4], %, 'yo')
+  |> lineTo([3, 4], %, $yo)
   |> close(%)
 `
-    const subStr = "lineTo([3, 4], %, 'yo')"
+    const subStr = 'lineTo([3, 4], %, $yo)'
     const lineToSubstringIndex = code.indexOf(subStr)
     const sourceRange: [number, number] = [
       lineToSubstringIndex,

src/lang/modifyAst.test.ts

@@ -460,12 +460,12 @@ describe('Testing deleteSegmentFromPipeExpression', () => {
     const code = `const part001 = startSketchOn('-XZ')
   |> startProfileAt([54.78, -95.91], %)
   |> line([306.21, 198.82], %)
-  |> line([306.21, 198.85], %, 'a')
+  |> line([306.21, 198.85], %, $a)
   |> line([306.21, 198.87], %)`
     const ast = parse(code)
     if (err(ast)) throw ast
     const programMemory = await enginelessExecutor(ast)
-    const lineOfInterest = "line([306.21, 198.85], %, 'a')"
+    const lineOfInterest = 'line([306.21, 198.85], %, $a)'
     const range: [number, number] = [
       code.indexOf(lineOfInterest),
       code.indexOf(lineOfInterest) + lineOfInterest.length,
@@ -495,10 +495,10 @@ describe('Testing deleteSegmentFromPipeExpression', () => {
   |> startProfileAt([54.78, -95.91], %)
   |> line([306.21, 198.82], %, $b)
 ${!replace1 ? `  |> ${line}\n` : ''}  |> angledLine([-65, ${
-      !replace1 ? 'segLen(a, %)' : replace1
+      !replace1 ? 'segLen(a)' : replace1
     }], %)
   |> line([306.21, 198.87], %)
-  |> angledLine([65, ${!replace2 ? 'segAng(a, %)' : replace2}], %)
+  |> angledLine([65, ${!replace2 ? 'segAng(a)' : replace2}], %)
   |> line([-963.39, -154.67], %)
 `
     test.each([
@@ -753,7 +753,7 @@ const sketch002 = startSketchOn(extrude001, seg01)
   |> startProfileAt([-12.55, 2.89], %)
   |> line([3.02, 1.9], %)
   |> line([1.82, -1.49], %, $seg02)
-  |> angledLine([-86, segLen(seg02, %)], %)
+  |> angledLine([-86, segLen(seg02)], %)
   |> line([-3.97, -0.53], %)
   |> line([0.3, 0.84], %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)
@@ -780,7 +780,7 @@ const sketch002 = startSketchOn({
   |> startProfileAt([-12.55, 2.89], %)
   |> line([3.02, 1.9], %)
   |> line([1.82, -1.49], %, $seg02)
-  |> angledLine([-86, segLen(seg02, %)], %)
+  |> angledLine([-86, segLen(seg02)], %)
   |> line([-3.97, -0.53], %)
   |> line([0.3, 0.84], %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)
@@ -809,7 +809,7 @@ const sketch002 = startSketchOn(extrude001, seg01)
   |> startProfileAt([-12.55, 2.89], %)
   |> line([3.02, 1.9], %)
   |> line([1.82, -1.49], %, $seg02)
-  |> angledLine([-86, segLen(seg02, %)], %)
+  |> angledLine([-86, segLen(seg02)], %)
   |> line([-3.97, -0.53], %)
   |> line([0.3, 0.84], %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)
@@ -836,7 +836,7 @@ const sketch002 = startSketchOn({
   |> startProfileAt([-12.55, 2.89], %)
   |> line([3.02, 1.9], %)
   |> line([1.82, -1.49], %, $seg02)
-  |> angledLine([-86, segLen(seg02, %)], %)
+  |> angledLine([-86, segLen(seg02)], %)
   |> line([-3.97, -0.53], %)
   |> line([0.3, 0.84], %)
   |> lineTo([profileStartX(%), profileStartY(%)], %)