f5e3b4bbe7
Engine fixed a bug where helices were starting at the wrong position. Requires updating the snapshots.
125 lines
928 KiB
Markdown
125 lines
928 KiB
Markdown
---
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title: "std::helix"
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excerpt: "Create a helix."
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layout: manual
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---
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Create a helix.
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```js
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helix(
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revolutions: number(_),
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angleStart: number(Angle),
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ccw?: bool,
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radius?: number(Length),
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axis?: Axis3d | Edge,
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length?: number(Length),
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cylinder?: Solid,
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): Helix
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```
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `revolutions` | `number(_)` | Number of revolutions. | Yes |
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| `angleStart` | `number(Angle)` | Start angle (in degrees). | Yes |
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| `ccw` | [`bool`](/docs/kcl/types/bool) | Is the helix rotation counter clockwise? The default is `false`. | No |
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| `radius` | `number(Length)` | Radius of the helix. | No |
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| `axis` | `Axis3d | Edge` | Axis to use for the helix. | No |
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| `length` | `number(Length)` | Length of the helix. This is not necessary if the helix is created around an edge. If not given the length of the edge is used. | No |
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| `cylinder` | [`Solid`](/docs/kcl/types/Solid) | Cylinder to create the helix on. | No |
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### Returns
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[`Helix`](/docs/kcl/types/Helix)
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### Examples
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```js
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// Create a helix around the Z axis.
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helixPath = helix(
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angleStart = 0,
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ccw = true,
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revolutions = 5,
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length = 10,
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radius = 5,
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axis = Z,
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)
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// Create a spring by sweeping around the helix path.
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springSketch = startSketchOn(YZ)
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|> circle( center = [0, 0], radius = 0.5)
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|> sweep(path = helixPath)
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```
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```js
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// Create a helix around an edge.
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helper001 = startSketchOn(XZ)
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|> startProfileAt([0, 0], %)
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|> line(end = [0, 10], tag = $edge001)
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helixPath = helix(
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angleStart = 0,
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ccw = true,
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revolutions = 5,
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length = 10,
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radius = 5,
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axis = edge001,
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)
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// Create a spring by sweeping around the helix path.
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springSketch = startSketchOn(XY)
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|> circle( center = [0, 0], radius = 0.5 )
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|> sweep(path = helixPath)
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```
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```js
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// Create a helix around a custom axis.
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helixPath = helix(
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angleStart = 0,
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ccw = true,
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revolutions = 5,
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length = 10,
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radius = 5,
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axis = {
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direction = [0, 0, 1.0],
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origin = [0, 0.25, 0]
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}
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)
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// Create a spring by sweeping around the helix path.
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springSketch = startSketchOn(XY)
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|> circle( center = [0, 0], radius = 1 )
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|> sweep(path = helixPath)
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```
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```js
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// Create a helix on a cylinder.
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part001 = startSketchOn(XY)
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|> circle( center= [5, 5], radius= 10 )
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|> extrude(length = 10)
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helix(
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angleStart = 0,
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ccw = true,
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revolutions = 16,
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cylinder = part001,
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)
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```
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