357 lines
451 KiB
Markdown
357 lines
451 KiB
Markdown
---
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title: "patternTransform"
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excerpt: "A linear pattern on a 3D solid."
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layout: manual
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---
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A linear pattern on a 3D solid.
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Each repetition of the pattern can be transformed (e.g. scaled, translated, hidden, etc).
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```js
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patternTransform(num_repetitions: u32, transform_function: FunctionParam, extrude_group_set: ExtrudeGroupSet) -> [ExtrudeGroup]
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```
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### Examples
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```js
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// Parameters
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const r = 50 // base radius
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const h = 10 // layer height
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const t = 0.005 // taper factor [0-1)
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// Defines how to modify each layer of the vase.
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// Each replica is shifted up the Z axis, and has a smoothly-varying radius
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fn transform = (replicaId) => {
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let scale = r * abs(1 - (t * replicaId)) * (5 + cos(replicaId / 8))
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return {
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translate: [0, 0, replicaId * 10],
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scale: [scale, scale, 0]
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}
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}
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// Each layer is just a pretty thin cylinder.
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fn layer = () => {
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return startSketchOn("XY")
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// or some other plane idk
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|> circle([0, 0], 1, %, $tag1)
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|> extrude(h, %)
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}
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// The vase is 100 layers tall.
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// The 100 layers are replica of each other, with a slight transformation applied to each.
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let vase = layer()
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|> patternTransform(100, transform, %)
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```
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### Arguments
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* `num_repetitions`: `u32` (REQUIRED)
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* `transform_function`: `FunctionParam` (REQUIRED)
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* `extrude_group_set`: `ExtrudeGroupSet` - A extrude group or a group of extrude groups. (REQUIRED)
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```js
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{
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// The id of the extrusion end cap
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endCapId: uuid,
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// Chamfers or fillets on this extrude group.
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filletOrChamfers: [{
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// The engine id of the edge to fillet.
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edge_id: uuid,
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// The id of the engine command that called this fillet.
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id: uuid,
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radius: number,
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type: "fillet",
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} |
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{
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// The engine id of the edge to chamfer.
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edge_id: uuid,
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// The id of the engine command that called this chamfer.
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id: uuid,
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length: number,
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "chamfer",
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}],
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// The height of the extrude group.
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height: number,
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// The id of the extrude group.
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id: uuid,
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// The sketch group.
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sketchGroup: {
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// The id of the sketch group.
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id: uuid,
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// What the sketch is on (can be a plane or a face).
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on: {
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// The id of the plane.
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id: uuid,
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// Origin of the plane.
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origin: {
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x: number,
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y: number,
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z: number,
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},
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type: "plane",
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// Type for a plane.
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value: "XY" | "XZ" | "YZ" | "Custom",
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// What should the plane’s X axis be?
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xAxis: {
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x: number,
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y: number,
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z: number,
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},
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// What should the plane’s Y axis be?
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yAxis: {
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x: number,
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y: number,
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z: number,
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},
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// The z-axis (normal).
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zAxis: {
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x: number,
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y: number,
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z: number,
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},
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} |
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{
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// The extrude group the face is on.
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extrudeGroup: {
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// The id of the extrusion end cap
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endCapId: uuid,
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// Chamfers or fillets on this extrude group.
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filletOrChamfers: [{
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// The engine id of the edge to fillet.
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edge_id: uuid,
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// The id of the engine command that called this fillet.
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id: uuid,
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radius: number,
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type: "fillet",
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} |
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{
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// The engine id of the edge to chamfer.
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edge_id: uuid,
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// The id of the engine command that called this chamfer.
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id: uuid,
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length: number,
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "chamfer",
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}],
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// The height of the extrude group.
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height: number,
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// The id of the extrude group.
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id: uuid,
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// The sketch group.
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sketchGroup: SketchGroup,
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// The id of the extrusion start cap
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startCapId: uuid,
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// The extrude surfaces.
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value: [{
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// The face id for the extrude plane.
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faceId: uuid,
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// The id of the geometry.
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id: uuid,
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// The source range.
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sourceRange: [number, number],
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// The tag.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "extrudePlane",
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} |
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{
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// The face id for the extrude plane.
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faceId: uuid,
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// The id of the geometry.
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id: uuid,
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// The source range.
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sourceRange: [number, number],
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// The tag.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "extrudeArc",
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}],
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},
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// The id of the face.
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id: uuid,
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type: "face",
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// The tag of the face.
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value: string,
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// What should the face’s X axis be?
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xAxis: {
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x: number,
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y: number,
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z: number,
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},
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// What should the face’s Y axis be?
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yAxis: {
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x: number,
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y: number,
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z: number,
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},
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// The z-axis (normal).
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zAxis: {
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x: number,
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y: number,
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z: number,
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},
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},
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// The starting path.
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start: {
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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},
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// The paths in the sketch group.
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value: [{
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "ToPoint",
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} |
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{
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// arc's direction
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ccw: string,
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// the arc's center
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center: [number, number],
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "TangentialArcTo",
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} |
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{
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "TangentialArc",
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} |
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{
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "Horizontal",
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// The x coordinate.
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x: number,
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} |
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{
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "AngledLineTo",
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// The x coordinate.
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x: number,
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// The y coordinate.
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y: number,
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} |
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{
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// The from point.
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from: [number, number],
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// The tag of the path.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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// The to point.
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to: [number, number],
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type: "Base",
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}],
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},
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// The id of the extrusion start cap
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startCapId: uuid,
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type: "extrudeGroup",
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// The extrude surfaces.
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value: [{
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// The face id for the extrude plane.
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faceId: uuid,
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// The id of the geometry.
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id: uuid,
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// The source range.
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sourceRange: [number, number],
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// The tag.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "extrudePlane",
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} |
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{
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// The face id for the extrude plane.
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faceId: uuid,
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// The id of the geometry.
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id: uuid,
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// The source range.
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sourceRange: [number, number],
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// The tag.
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tag: {
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end: number,
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start: number,
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value: string,
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},
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type: "extrudeArc",
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}],
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} |
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{
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type: "extrudeGroups",
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}
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```
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### Returns
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`[ExtrudeGroup]`
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