Declare pattern transform functions in KCL (#7057)

* Declare pattern transform using KCL

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* Boolean function param defaults

Signed-off-by: Nick Cameron <nrc@ncameron.org>

* Parse empty record types in fn types

Signed-off-by: Nick Cameron <nrc@ncameron.org>

---------

Signed-off-by: Nick Cameron <nrc@ncameron.org>
This commit is contained in:
Nick Cameron
2025-05-20 08:25:29 +12:00
committed by GitHub
parent b1d1d89ca5
commit cf303ebe97
25 changed files with 383 additions and 16487 deletions

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@ -1,19 +1,19 @@
---
title: "patternTransform2d"
subtitle: "Function in std::sketch"
excerpt: "Just like patternTransform, but works on 2D sketches not 3D solids."
excerpt: "Just like `patternTransform`, but works on 2D sketches not 3D solids."
layout: manual
---
Just like patternTransform, but works on 2D sketches not 3D solids.
Just like `patternTransform`, but works on 2D sketches not 3D solids.
```kcl
patternTransform2d(
@sketches: [Sketch],
instances: number,
transform: FunctionSource,
useOriginal?: bool,
): [Sketch]
@sketches: [Sketch; 1+],
instances: number(_),
transform: fn(number(_)): { },
useOriginal?: boolean,
): [Sketch; 1+]
```
@ -22,14 +22,14 @@ patternTransform2d(
| Name | Type | Description | Required |
|----------|------|-------------|----------|
| `sketches` | [`[Sketch]`](/docs/kcl-std/types/std-types-Sketch) | The sketch(es) to duplicate | Yes |
| `instances` | [`number`](/docs/kcl-std/types/std-types-number) | The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect. | Yes |
| `transform` | `FunctionSource` | How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples. | Yes |
| `useOriginal` | [`bool`](/docs/kcl-std/types/std-types-bool) | If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid. Defaults to false. | No |
| `sketches` | [`[Sketch; 1+]`](/docs/kcl-std/types/std-types-Sketch) | The sketch(es) to duplicate. | Yes |
| `instances` | [`number(_)`](/docs/kcl-std/types/std-types-number) | The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect. | Yes |
| `transform` | [`fn(number(_)): { }`](/docs/kcl-std/types/std-types-fn) | How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples. | Yes |
| `useOriginal` | `boolean` | If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid. | No |
### Returns
[`[Sketch]`](/docs/kcl-std/types/std-types-Sketch)
[`[Sketch; 1+]`](/docs/kcl-std/types/std-types-Sketch)
### Examples

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@ -65,7 +65,7 @@ layout: manual
* [`line`](/docs/kcl-std/line)
* [`loft`](/docs/kcl-std/loft)
* [`patternCircular2d`](/docs/kcl-std/patternCircular2d)
* [`patternTransform2d`](/docs/kcl-std/patternTransform2d)
* [`patternTransform2d`](/docs/kcl-std/functions/std-sketch-patternTransform2d)
* [`polygon`](/docs/kcl-std/polygon)
* [`profileStart`](/docs/kcl-std/profileStart)
* [`profileStartX`](/docs/kcl-std/profileStartX)
@ -94,7 +94,7 @@ layout: manual
* [`intersect`](/docs/kcl-std/intersect)
* [`patternCircular3d`](/docs/kcl-std/patternCircular3d)
* [`patternLinear3d`](/docs/kcl-std/patternLinear3d)
* [`patternTransform`](/docs/kcl-std/patternTransform)
* [`patternTransform`](/docs/kcl-std/functions/std-solid-patternTransform)
* [`shell`](/docs/kcl-std/functions/std-solid-shell)
* [`subtract`](/docs/kcl-std/subtract)
* [`union`](/docs/kcl-std/union)

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@ -30,7 +30,7 @@ This module contains functions for creating and manipulating sketches, and makin
* [`line`](/docs/kcl-std/line)
* [`loft`](/docs/kcl-std/loft)
* [`patternCircular2d`](/docs/kcl-std/patternCircular2d)
* [`patternTransform2d`](/docs/kcl-std/patternTransform2d)
* [`patternTransform2d`](/docs/kcl-std/functions/std-sketch-patternTransform2d)
* [`polygon`](/docs/kcl-std/polygon)
* [`profileStart`](/docs/kcl-std/profileStart)
* [`profileStartX`](/docs/kcl-std/profileStartX)

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@ -18,7 +18,7 @@ This module contains functions for modifying solids, e.g., by adding a fillet or
* [`intersect`](/docs/kcl-std/intersect)
* [`patternCircular3d`](/docs/kcl-std/patternCircular3d)
* [`patternLinear3d`](/docs/kcl-std/patternLinear3d)
* [`patternTransform`](/docs/kcl-std/patternTransform)
* [`patternTransform`](/docs/kcl-std/functions/std-solid-patternTransform)
* [`shell`](/docs/kcl-std/functions/std-solid-shell)
* [`subtract`](/docs/kcl-std/subtract)
* [`union`](/docs/kcl-std/union)

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@ -155,9 +155,8 @@ impl RuntimeType {
.map(RuntimeType::Union),
Type::Object { properties } => properties
.into_iter()
.map(|p| {
RuntimeType::from_parsed(p.type_.unwrap().inner, exec_state, source_range)
.map(|ty| (p.identifier.inner.name, ty))
.map(|(id, ty)| {
RuntimeType::from_parsed(ty.inner, exec_state, source_range).map(|ty| (id.name.clone(), ty))
})
.collect::<Result<Vec<_>, CompilationError>>()
.map(RuntimeType::Object),

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@ -212,8 +212,9 @@ impl Type {
Type::Object { properties } => {
hasher.update(b"FnArgType::Object");
hasher.update(properties.len().to_ne_bytes());
for prop in properties.iter_mut() {
hasher.update(prop.compute_digest());
for (id, ty) in properties.iter_mut() {
hasher.update(id.compute_digest());
hasher.update(ty.compute_digest());
}
}
}

View File

@ -3315,7 +3315,7 @@ pub enum Type {
},
// An object type.
Object {
properties: Vec<Parameter>,
properties: Vec<(Node<Identifier>, Node<Type>)>,
},
}
@ -3348,10 +3348,8 @@ impl fmt::Display for Type {
} else {
write!(f, ",")?;
}
write!(f, " {}:", p.identifier.name)?;
if let Some(ty) = &p.type_ {
write!(f, " {}", ty.inner)?;
}
write!(f, " {}:", p.0.name)?;
write!(f, " {}", p.1)?;
}
write!(f, " }}")
}
@ -3988,7 +3986,7 @@ cylinder = startSketchOn(-XZ)
#[tokio::test(flavor = "multi_thread")]
async fn test_parse_type_args_object_on_functions() {
let some_program_string = r#"fn thing(arg0: [number], arg1: {thing: number, things: [string], more?: string}, tag?: string) {
let some_program_string = r#"fn thing(arg0: [number], arg1: {thing: number, things: [string], more: string}, tag?: string) {
return arg0
}"#;
let module_id = ModuleId::default();
@ -4015,8 +4013,8 @@ cylinder = startSketchOn(-XZ)
params[1].type_.as_ref().unwrap().inner,
Type::Object {
properties: vec![
Parameter {
identifier: Node::new(
(
Node::new(
Identifier {
name: "thing".to_owned(),
digest: None,
@ -4025,18 +4023,15 @@ cylinder = startSketchOn(-XZ)
37,
module_id,
),
type_: Some(Node::new(
Node::new(
Type::Primitive(PrimitiveType::Number(NumericSuffix::None)),
39,
45,
module_id
)),
default_value: None,
labeled: true,
digest: None,
},
Parameter {
identifier: Node::new(
),
),
(
Node::new(
Identifier {
name: "things".to_owned(),
digest: None,
@ -4045,7 +4040,7 @@ cylinder = startSketchOn(-XZ)
53,
module_id,
),
type_: Some(Node::new(
Node::new(
Type::Array {
ty: Box::new(Type::Primitive(PrimitiveType::String)),
len: ArrayLen::None
@ -4053,13 +4048,10 @@ cylinder = startSketchOn(-XZ)
56,
62,
module_id
)),
default_value: None,
labeled: true,
digest: None
},
Parameter {
identifier: Node::new(
)
),
(
Node::new(
Identifier {
name: "more".to_owned(),
digest: None
@ -4068,11 +4060,8 @@ cylinder = startSketchOn(-XZ)
69,
module_id,
),
type_: Some(Node::new(Type::Primitive(PrimitiveType::String), 72, 78, module_id)),
labeled: true,
default_value: Some(DefaultParamVal::none()),
digest: None
}
Node::new(Type::Primitive(PrimitiveType::String), 71, 77, module_id),
)
]
}
);

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@ -436,7 +436,7 @@ fn pipe_expression(i: &mut TokenSlice) -> PResult<Node<PipeExpression>> {
))
}
fn bool_value(i: &mut TokenSlice) -> PResult<BoxNode<Literal>> {
fn bool_value(i: &mut TokenSlice) -> PResult<Node<Literal>> {
let (value, token) = any
.try_map(|token: Token| match token.token_type {
TokenType::Keyword if token.value == "true" => Ok((true, token)),
@ -448,7 +448,7 @@ fn bool_value(i: &mut TokenSlice) -> PResult<BoxNode<Literal>> {
})
.context(expected("a boolean literal (either true or false)"))
.parse_next(i)?;
Ok(Box::new(Node::new(
Ok(Node::new(
Literal {
value: LiteralValue::Bool(value),
raw: value.to_string(),
@ -457,11 +457,11 @@ fn bool_value(i: &mut TokenSlice) -> PResult<BoxNode<Literal>> {
token.start,
token.end,
token.module_id,
)))
))
}
fn literal(i: &mut TokenSlice) -> PResult<BoxNode<Literal>> {
alt((string_literal, unsigned_number_literal))
alt((string_literal, unsigned_number_literal, bool_value))
.map(Box::new)
.context(expected("a KCL literal, like 'myPart' or 3"))
.parse_next(i)
@ -2051,7 +2051,7 @@ fn unnecessarily_bracketed(i: &mut TokenSlice) -> PResult<Expr> {
fn expr_allowed_in_pipe_expr(i: &mut TokenSlice) -> PResult<Expr> {
alt((
member_expression.map(Box::new).map(Expr::MemberExpression),
bool_value.map(Expr::Literal),
bool_value.map(Box::new).map(Expr::Literal),
tag.map(Box::new).map(Expr::TagDeclarator),
literal.map(Expr::Literal),
fn_call_kw.map(Box::new).map(Expr::CallExpressionKw),
@ -2070,7 +2070,7 @@ fn expr_allowed_in_pipe_expr(i: &mut TokenSlice) -> PResult<Expr> {
fn possible_operands(i: &mut TokenSlice) -> PResult<Expr> {
let mut expr = alt((
unary_expression.map(Box::new).map(Expr::UnaryExpression),
bool_value.map(Expr::Literal),
bool_value.map(Box::new).map(Expr::Literal),
member_expression.map(Box::new).map(Expr::MemberExpression),
literal.map(Expr::Literal),
fn_call_kw.map(Box::new).map(Expr::CallExpressionKw),
@ -2780,20 +2780,24 @@ fn labeled_argument(i: &mut TokenSlice) -> PResult<LabeledArg> {
.parse_next(i)
}
fn record_ty_field(i: &mut TokenSlice) -> PResult<(Node<Identifier>, Node<Type>)> {
(identifier, colon, opt(whitespace), type_)
.map(|(id, _, _, ty)| (id, ty))
.parse_next(i)
}
/// Parse a type in various positions.
fn type_(i: &mut TokenSlice) -> PResult<Node<Type>> {
let type_ = alt((
// Object types
// TODO it is buggy to treat object fields like parameters since the parameters parser assumes a terminating `)`.
(open_brace, parameters, close_brace).try_map(|(open, params, close)| {
for p in &params {
if p.type_.is_none() {
return Err(CompilationError::fatal(
p.identifier.as_source_range(),
"Missing type for field in record type",
));
}
}
(
open_brace,
opt(whitespace),
separated(0.., record_ty_field, comma_sep),
opt(whitespace),
close_brace,
)
.try_map(|(open, _, params, _, close)| {
Ok(Node::new(
Type::Object { properties: params },
open.start,
@ -4866,6 +4870,15 @@ let myBox = box(p=[0,0], h=-3, l=-16, w=-10)
|> line(%, tag = $var01)"#;
assert_no_err(some_program_string);
}
#[test]
fn test_parse_param_bool_default() {
let some_program_string = r#"fn patternTransform(
use_original?: boolean = false,
) {}"#;
assert_no_err(some_program_string);
}
#[test]
fn parse_function_types() {
let code = r#"foo = x: fn
@ -4875,6 +4888,8 @@ fn foo(x: fn(a, b: number(mm), c: d): number(Angle)): fn { return 0 }
type fn
type foo = fn
type foo = fn(a: string, b: { f: fn(): any })
type foo = fn(a: string, b: {})
type foo = fn(a: string, b: { })
type foo = fn([fn])
type foo = fn(fn, f: fn(number(_))): [fn([any]): string]
"#;

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@ -80,8 +80,6 @@ lazy_static! {
Box::new(crate::std::patterns::PatternLinear3D),
Box::new(crate::std::patterns::PatternCircular2D),
Box::new(crate::std::patterns::PatternCircular3D),
Box::new(crate::std::patterns::PatternTransform),
Box::new(crate::std::patterns::PatternTransform2D),
Box::new(crate::std::edge::GetOppositeEdge),
Box::new(crate::std::edge::GetNextAdjacentEdge),
Box::new(crate::std::edge::GetPreviousAdjacentEdge),
@ -280,6 +278,14 @@ pub(crate) fn std_fn(path: &str, fn_name: &str) -> (crate::std::StdFn, StdFnProp
|e, a| Box::pin(crate::std::clone::clone(e, a)),
StdFnProps::default("std::clone").include_in_feature_tree(),
),
("solid", "patternTransform") => (
|e, a| Box::pin(crate::std::patterns::pattern_transform(e, a)),
StdFnProps::default("std::solid::patternTransform").include_in_feature_tree(),
),
("sketch", "patternTransform2d") => (
|e, a| Box::pin(crate::std::patterns::pattern_transform_2d(e, a)),
StdFnProps::default("std::sketch::patternTransform2d"),
),
_ => unreachable!(),
}
}

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@ -57,202 +57,6 @@ pub async fn pattern_transform_2d(exec_state: &mut ExecState, args: Args) -> Res
Ok(sketches.into())
}
/// Repeat a 3-dimensional solid, changing it each time.
///
/// Replicates the 3D solid, applying a transformation function to each replica.
/// Transformation function could alter rotation, scale, visibility, position, etc.
///
/// The `patternTransform` call itself takes a number for how many total instances of
/// the shape should be. For example, if you use a circle with `patternTransform(instances = 4, transform = f)`
/// then there will be 4 circles: the original, and 3 created by replicating the original and
/// calling the transform function on each.
///
/// The transform function takes a single parameter: an integer representing which
/// number replication the transform is for. E.g. the first replica to be transformed
/// will be passed the argument `1`. This simplifies your math: the transform function can
/// rely on id `0` being the original instance passed into the `patternTransform`. See the examples.
///
/// The transform function returns a transform object. All properties of the object are optional,
/// they each default to "no change". So the overall transform object defaults to "no change" too.
/// Its properties are:
///
/// - `translate` (3D point)
///
/// Translates the replica, moving its position in space.
///
/// - `replicate` (bool)
///
/// If false, this ID will not actually copy the object. It'll be skipped.
///
/// - `scale` (3D point)
///
/// Stretches the object, multiplying its width in the given dimension by the point's component in
/// that direction.
///
/// - `rotation` (object, with the following properties)
///
/// - `rotation.axis` (a 3D point, defaults to the Z axis)
///
/// - `rotation.angle` (number of degrees)
///
/// - `rotation.origin` (either "local" i.e. rotate around its own center, "global" i.e. rotate around the scene's center, or a 3D point, defaults to "local")
///
/// ```no_run
/// // Each instance will be shifted along the X axis.
/// fn transform(@id) {
/// return { translate = [4 * id, 0, 0] }
/// }
///
/// // Sketch 4 cylinders.
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius = 2)
/// |> extrude(length = 5)
/// |> patternTransform(instances = 4, transform = transform)
/// ```
/// ```no_run
/// // Each instance will be shifted along the X axis,
/// // with a gap between the original (at x = 0) and the first replica
/// // (at x = 8). This is because `id` starts at 1.
/// fn transform(@id) {
/// return { translate = [4 * (1+id), 0, 0] }
/// }
///
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius = 2)
/// |> extrude(length = 5)
/// |> patternTransform(instances = 4, transform = transform)
/// ```
/// ```no_run
/// fn cube(length, center) {
/// l = length/2
/// x = center[0]
/// y = center[1]
/// p0 = [-l + x, -l + y]
/// p1 = [-l + x, l + y]
/// p2 = [ l + x, l + y]
/// p3 = [ l + x, -l + y]
///
/// return startSketchOn(XY)
/// |> startProfile(at = p0)
/// |> line(endAbsolute = p1)
/// |> line(endAbsolute = p2)
/// |> line(endAbsolute = p3)
/// |> line(endAbsolute = p0)
/// |> close()
/// |> extrude(length = length)
/// }
///
/// width = 20
/// fn transform(@i) {
/// return {
/// // Move down each time.
/// translate = [0, 0, -i * width],
/// // Make the cube longer, wider and flatter each time.
/// scale = [pow(1.1, exp = i), pow(1.1, exp = i), pow(0.9, exp = i)],
/// // Turn by 15 degrees each time.
/// rotation = {
/// angle = 15 * i,
/// origin = "local",
/// }
/// }
/// }
///
/// myCubes =
/// cube(length = width, center = [100,0])
/// |> patternTransform(instances = 25, transform = transform)
/// ```
///
/// ```no_run
/// fn cube(length, center) {
/// l = length/2
/// x = center[0]
/// y = center[1]
/// p0 = [-l + x, -l + y]
/// p1 = [-l + x, l + y]
/// p2 = [ l + x, l + y]
/// p3 = [ l + x, -l + y]
///
/// return startSketchOn(XY)
/// |> startProfile(at = p0)
/// |> line(endAbsolute = p1)
/// |> line(endAbsolute = p2)
/// |> line(endAbsolute = p3)
/// |> line(endAbsolute = p0)
/// |> close()
/// |> extrude(length = length)
/// }
///
/// width = 20
/// fn transform(@i) {
/// return {
/// translate = [0, 0, -i * width],
/// rotation = {
/// angle = 90 * i,
/// // Rotate around the overall scene's origin.
/// origin = "global",
/// }
/// }
/// }
/// myCubes =
/// cube(length = width, center = [100,100])
/// |> patternTransform(instances = 4, transform = transform)
/// ```
/// ```no_run
/// // Parameters
/// r = 50 // base radius
/// h = 10 // layer height
/// t = 0.005 // taper factor [0-1)
/// // Defines how to modify each layer of the vase.
/// // Each replica is shifted up the Z axis, and has a smoothly-varying radius
/// fn transform(@replicaId) {
/// scale = r * abs(1 - (t * replicaId)) * (5 + cos((replicaId / 8): number(rad)))
/// return {
/// translate = [0, 0, replicaId * 10],
/// scale = [scale, scale, 0],
/// }
/// }
/// // Each layer is just a pretty thin cylinder.
/// fn layer() {
/// return startSketchOn(XY) // or some other plane idk
/// |> circle(center = [0, 0], radius = 1, tag = $tag1)
/// |> extrude(length = h)
/// }
/// // The vase is 100 layers tall.
/// // The 100 layers are replica of each other, with a slight transformation applied to each.
/// vase = layer() |> patternTransform(instances = 100, transform = transform)
/// ```
/// ```
/// fn transform(@i) {
/// // Transform functions can return multiple transforms. They'll be applied in order.
/// return [
/// { translate = [30 * i, 0, 0] },
/// { rotation = { angle = 45 * i } },
/// ]
/// }
/// startSketchOn(XY)
/// |> startProfile(at = [0, 0])
/// |> polygon(
/// radius = 10,
/// numSides = 4,
/// center = [0, 0],
/// inscribed = false,
/// )
/// |> extrude(length = 4)
/// |> patternTransform(instances = 3, transform = transform)
/// ```
#[stdlib {
name = "patternTransform",
feature_tree_operation = true,
keywords = true,
unlabeled_first = true,
args = {
solids = { docs = "The solid(s) to duplicate" },
instances = { docs = "The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect." },
transform = { docs = "How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples." },
use_original = { docs = "If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid. Defaults to false." },
},
tags = ["solid"]
}]
async fn inner_pattern_transform<'a>(
solids: Vec<Solid>,
instances: u32,
@ -283,30 +87,6 @@ async fn inner_pattern_transform<'a>(
.await
}
/// Just like patternTransform, but works on 2D sketches not 3D solids.
/// ```no_run
/// // Each instance will be shifted along the X axis.
/// fn transform(@id) {
/// return { translate = [4 * id, 0] }
/// }
///
/// // Sketch 4 circles.
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius= 2)
/// |> patternTransform2d(instances = 4, transform = transform)
/// ```
#[stdlib {
name = "patternTransform2d",
keywords = true,
unlabeled_first = true,
args = {
sketches = { docs = "The sketch(es) to duplicate" },
instances = { docs = "The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect." },
transform = { docs = "How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples." },
use_original = { docs = "If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid. Defaults to false." },
},
tags = ["sketch"]
}]
async fn inner_pattern_transform_2d<'a>(
sketches: Vec<Sketch>,
instances: u32,

View File

@ -278,3 +278,28 @@ export fn revolve(
/// A named tag for the face at the end of the revolve.
tagEnd?: tag,
): [Solid; 1+] {}
/// Just like `patternTransform`, but works on 2D sketches not 3D solids.
///
/// ```kcl
/// // Each instance will be shifted along the X axis.
/// fn transform(@id) {
/// return { translate = [4 * id, 0] }
/// }
///
/// // Sketch 4 circles.
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius = 2)
/// |> patternTransform2d(instances = 4, transform = transform)
/// ```
@(impl = std_rust)
export fn patternTransform2d(
/// The sketch(es) to duplicate.
@sketches: [Sketch; 1+],
/// The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect.
instances: number(Count),
/// How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples.
transform: fn(number(Count)): {},
/// If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid.
useOriginal?: boolean = false,
): [Sketch; 1+] {}

View File

@ -365,3 +365,202 @@ export fn hollow(
/// The thickness of the remaining shell
thickness: number(Length),
): Solid {}
/// Repeat a 3-dimensional solid, changing it each time.
///
/// Replicates the 3D solid, applying a transformation function to each replica.
/// Transformation function could alter rotation, scale, visibility, position, etc.
///
/// The `patternTransform` call itself takes a number for how many total instances of
/// the shape should be. For example, if you use a circle with `patternTransform(instances = 4, transform = f)`
/// then there will be 4 circles: the original, and 3 created by replicating the original and
/// calling the transform function on each.
///
/// The transform function takes a single parameter: an integer representing which
/// number replication the transform is for. E.g. the first replica to be transformed
/// will be passed the argument `1`. This simplifies your math: the transform function can
/// rely on id `0` being the original instance passed into the `patternTransform`. See the examples.
///
/// The transform function returns a transform object. All properties of the object are optional,
/// they each default to "no change". So the overall transform object defaults to "no change" too.
/// Its properties are:
///
/// - `translate` (3D point)
///
/// Translates the replica, moving its position in space.
///
/// - `replicate` (bool)
///
/// If false, this ID will not actually copy the object. It'll be skipped.
///
/// - `scale` (3D point)
///
/// Stretches the object, multiplying its width in the given dimension by the point's component in
/// that direction.
///
/// - `rotation` (object, with the following properties)
///
/// - `rotation.axis` (a 3D point, defaults to the Z axis)
///
/// - `rotation.angle` (number of degrees)
///
/// - `rotation.origin` (either "local" i.e. rotate around its own center, "global" i.e. rotate around the scene's center, or a 3D point, defaults to "local")
///
/// ```kcl
/// // Each instance will be shifted along the X axis.
/// fn transform(@id) {
/// return { translate = [4 * id, 0, 0] }
/// }
///
/// // Sketch 4 cylinders.
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius = 2)
/// |> extrude(length = 5)
/// |> patternTransform(instances = 4, transform = transform)
/// ```
///
/// ```kcl
/// // Each instance will be shifted along the X axis,
/// // with a gap between the original (at x = 0) and the first replica
/// // (at x = 8). This is because `id` starts at 1.
/// fn transform(@id) {
/// return { translate = [4 * (1+id), 0, 0] }
/// }
///
/// sketch001 = startSketchOn(XZ)
/// |> circle(center = [0, 0], radius = 2)
/// |> extrude(length = 5)
/// |> patternTransform(instances = 4, transform = transform)
/// ```
///
/// ```kcl
/// fn cube(length, center) {
/// l = length/2
/// x = center[0]
/// y = center[1]
/// p0 = [-l + x, -l + y]
/// p1 = [-l + x, l + y]
/// p2 = [ l + x, l + y]
/// p3 = [ l + x, -l + y]
///
/// return startSketchOn(XY)
/// |> startProfile(at = p0)
/// |> line(endAbsolute = p1)
/// |> line(endAbsolute = p2)
/// |> line(endAbsolute = p3)
/// |> line(endAbsolute = p0)
/// |> close()
/// |> extrude(length = length)
/// }
///
/// width = 20
/// fn transform(@i) {
/// return {
/// // Move down each time.
/// translate = [0, 0, -i * width],
/// // Make the cube longer, wider and flatter each time.
/// scale = [pow(1.1, exp = i), pow(1.1, exp = i), pow(0.9, exp = i)],
/// // Turn by 15 degrees each time.
/// rotation = {
/// angle = 15 * i,
/// origin = "local",
/// }
/// }
/// }
///
/// myCubes =
/// cube(length = width, center = [100,0])
/// |> patternTransform(instances = 25, transform = transform)
/// ```
///
/// ```kcl
/// fn cube(length, center) {
/// l = length/2
/// x = center[0]
/// y = center[1]
/// p0 = [-l + x, -l + y]
/// p1 = [-l + x, l + y]
/// p2 = [ l + x, l + y]
/// p3 = [ l + x, -l + y]
///
/// return startSketchOn(XY)
/// |> startProfile(at = p0)
/// |> line(endAbsolute = p1)
/// |> line(endAbsolute = p2)
/// |> line(endAbsolute = p3)
/// |> line(endAbsolute = p0)
/// |> close()
/// |> extrude(length = length)
/// }
///
/// width = 20
/// fn transform(@i) {
/// return {
/// translate = [0, 0, -i * width],
/// rotation = {
/// angle = 90 * i,
/// // Rotate around the overall scene's origin.
/// origin = "global",
/// }
/// }
/// }
/// myCubes =
/// cube(length = width, center = [100,100])
/// |> patternTransform(instances = 4, transform = transform)
/// ```
///
/// ```kcl
/// // Parameters
/// r = 50 // base radius
/// h = 10 // layer height
/// t = 0.005 // taper factor [0-1)
/// // Defines how to modify each layer of the vase.
/// // Each replica is shifted up the Z axis, and has a smoothly-varying radius
/// fn transform(@replicaId) {
/// scale = r * abs(1 - (t * replicaId)) * (5 + cos((replicaId / 8): number(rad)))
/// return {
/// translate = [0, 0, replicaId * 10],
/// scale = [scale, scale, 0],
/// }
/// }
/// // Each layer is just a pretty thin cylinder.
/// fn layer() {
/// return startSketchOn(XY) // or some other plane idk
/// |> circle(center = [0, 0], radius = 1, tag = $tag1)
/// |> extrude(length = h)
/// }
/// // The vase is 100 layers tall.
/// // The 100 layers are replica of each other, with a slight transformation applied to each.
/// vase = layer() |> patternTransform(instances = 100, transform = transform)
/// ```
///
/// ```kcl
/// fn transform(@i) {
/// // Transform functions can return multiple transforms. They'll be applied in order.
/// return [
/// { translate = [30 * i, 0, 0] },
/// { rotation = { angle = 45 * i } },
/// ]
/// }
/// startSketchOn(XY)
/// |> startProfile(at = [0, 0])
/// |> polygon(
/// radius = 10,
/// numSides = 4,
/// center = [0, 0],
/// inscribed = false,
/// )
/// |> extrude(length = 4)
/// |> patternTransform(instances = 3, transform = transform)
/// ```
@(impl = std_rust)
export fn patternTransform(
/// The solid(s) to duplicate.
@solids: [Solid; 1+],
/// The number of total instances. Must be greater than or equal to 1. This includes the original entity. For example, if instances is 2, there will be two copies -- the original, and one new copy. If instances is 1, this has no effect.
instances: number(Count),
/// How each replica should be transformed. The transform function takes a single parameter: an integer representing which number replication the transform is for. E.g. the first replica to be transformed will be passed the argument `1`. This simplifies your math: the transform function can rely on id `0` being the original instance passed into the `patternTransform`. See the examples.
transform: fn(number(Count)): {},
/// If the target was sketched on an extrusion, setting this will use the original sketch as the target, not the entire joined solid.
useOriginal?: boolean = false,
): [Solid; 1+] {}

View File

@ -111,9 +111,9 @@ flowchart LR
8 --- 19
8 --- 20
8 ---- 25
12 <--x 32
12 --- 32
12 <--x 33
12 --- 34
12 <--x 34
13 --- 31
13 x--> 35
13 --- 39

View File

@ -805,13 +805,8 @@ description: Operations executed spinning-highrise-tower.kcl
"type": "Number",
"value": 17.0,
"ty": {
"type": "Default",
"len": {
"type": "M"
},
"angle": {
"type": "Degrees"
}
"type": "Known",
"type": "Count"
}
},
"sourceRange": []
@ -1275,13 +1270,8 @@ description: Operations executed spinning-highrise-tower.kcl
"type": "Number",
"value": 17.0,
"ty": {
"type": "Default",
"len": {
"type": "M"
},
"angle": {
"type": "Degrees"
}
"type": "Known",
"type": "Count"
}
},
"sourceRange": []

View File

@ -108,13 +108,8 @@ description: Operations executed multi_transform.kcl
"type": "Number",
"value": 3.0,
"ty": {
"type": "Default",
"len": {
"type": "Mm"
},
"angle": {
"type": "Degrees"
}
"type": "Known",
"type": "Count"
}
},
"sourceRange": []

View File

@ -89,9 +89,9 @@ flowchart LR
12 <--x 22
12 --- 23
12 <--x 24
16 <--x 25
16 --- 25
16 <--x 26
16 --- 27
16 <--x 27
19 --- 22
19 --- 23
19 --- 24