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modeling-app/docs/kcl/sweep.md
Nick Cameron a8b0e1a771 Use arrays for multiple geometry (#5770)
* Parse [T] instead of T[] for array types

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

* homogenous arrays, type coercion, remove solid set and sketch set, etc

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

---------

Signed-off-by: Nick Cameron <nrc@ncameron.org>
2025-03-17 17:57:26 +13:00

442 KiB

title, excerpt, layout
title excerpt layout
sweep Extrude a sketch along a path. manual

Extrude a sketch along a path.

This, like extrude, is able to create a 3-dimensional solid from a 2-dimensional sketch. However, unlike extrude, this creates a solid by using the extent of the sketch as its path. This is useful for creating more complex shapes that can't be created with a simple extrusion.

You can provide more than one sketch to sweep, and they will all be swept along the same path.

sweep(
  sketches: [Sketch],
  path: SweepPath,
  sectional?: bool,
  tolerance?: number,
): [Solid]

Arguments

Name Type Description Required
sketches [Sketch] The sketch or set of sketches that should be swept in space Yes
path SweepPath The path to sweep the sketch along Yes
sectional bool If true, the sweep will be broken up into sub-sweeps (extrusions, revolves, sweeps) based on the trajectory path components. No
tolerance number Tolerance for this operation No

Returns

[Solid]

Examples

// Create a pipe using a sweep.


// Create a path for the sweep.
sweepPath = startSketchOn('XZ')
  |> startProfileAt([0.05, 0.05], %)
  |> line(end = [0, 7])
  |> tangentialArc({ offset = 90, radius = 5 }, %)
  |> line(end = [-3, 0])
  |> tangentialArc({ offset = -90, radius = 5 }, %)
  |> line(end = [0, 7])

// Create a hole for the pipe.
pipeHole = startSketchOn('XY')
  |> circle(center = [0, 0], radius = 1.5)

sweepSketch = startSketchOn('XY')
  |> circle(center = [0, 0], radius = 2)
  |> hole(pipeHole, %)
  |> sweep(path = sweepPath)

Rendered example of sweep 0

// Create a spring by sweeping around a helix path.


// Create a helix around the Z axis.
helixPath = helix(
  angleStart = 0,
  ccw = true,
  revolutions = 4,
  length = 10,
  radius = 5,
  axis = 'Z',
)

// Create a spring by sweeping around the helix path.
springSketch = startSketchOn('YZ')
  |> circle(center = [0, 0], radius = 1)
  |> sweep(path = helixPath)

Rendered example of sweep 1

// Sweep two sketches along the same path.


sketch001 = startSketchOn('XY')
rectangleSketch = startProfileAt([-200, 23.86], sketch001)
  |> angledLine([0, 73.47], %, $rectangleSegmentA001)
  |> angledLine([
       segAng(rectangleSegmentA001) - 90,
       50.61
     ], %)
  |> angledLine([
       segAng(rectangleSegmentA001),
       -segLen(rectangleSegmentA001)
     ], %)
  |> line(endAbsolute = [profileStartX(%), profileStartY(%)])
  |> close()

circleSketch = circle(sketch001, center = [200, -30.29], radius = 32.63)

sketch002 = startSketchOn('YZ')
sweepPath = startProfileAt([0, 0], sketch002)
  |> yLine(length = 231.81)
  |> tangentialArc({ radius = 80, offset = -90 }, %)
  |> xLine(length = 384.93)

sweep([rectangleSketch, circleSketch], path = sweepPath)

Rendered example of sweep 2