modeling-app/docs/kcl/arrayReduce.md

title, excerpt, layout

title	excerpt	layout
arrayReduce	Take a starting value. Then, for each element of an array, calculate the next value,	manual

Take a starting value. Then, for each element of an array, calculate the next value,

using the previous value and the element.

arrayReduce(array: [u64], start: SketchGroup, reduce_fn: FunctionParam) -> SketchGroup

Arguments

Name	Type	Description	Required
array	[u64]		Yes
start	SketchGroup	A sketch group is a collection of paths.	Yes
reduce_fn	FunctionParam		Yes

Returns

SketchGroup - A sketch group is a collection of paths.

Examples

fn decagon = (radius) => {
  let step = 1 / 10 * tau()
  let sketch = startSketchAt([cos(0) * radius, sin(0) * radius])
  return arrayReduce([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], sketch, (i, sg) => {
  let x = cos(step * i) * radius
  let y = sin(step * i) * radius
  return lineTo([x, y], sg)
})
}
decagon(5.0)
  |> close(%)