290 lines
1.5 MiB
290 lines
1.5 MiB
---
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title: "revolve"
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subtitle: "Function in std::sketch"
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excerpt: "Rotate a sketch around some provided axis, creating a solid from its extent."
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layout: manual
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---
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Rotate a sketch around some provided axis, creating a solid from its extent.
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```kcl
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revolve(
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@sketches: [Sketch; 1+],
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axis: Axis2d | Edge,
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angle?: number(Angle),
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tolerance?: number(Length),
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symmetric?: bool,
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bidirectionalAngle?: number(Angle),
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tagStart?: tag,
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tagEnd?: tag,
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): [Solid; 1+]
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```
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This, like extrude, is able to create a 3-dimensional solid from a
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2-dimensional sketch. However, unlike extrude, this creates a solid
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by using the extent of the sketch as its revolved around an axis rather
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than using the extent of the sketch linearly translated through a third
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dimension.
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Revolve occurs around a local sketch axis rather than a global axis.
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You can provide more than one sketch to revolve, and they will all be
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revolved around the same axis.
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `sketches` | [`[Sketch; 1+]`](/docs/kcl-std/types/std-types-Sketch) | The sketch or set of sketches that should be revolved | Yes |
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| `axis` | [`Axis2d`](/docs/kcl-std/types/std-types-Axis2d) or [`Edge`](/docs/kcl-std/types/std-types-Edge) | Axis of revolution. | Yes |
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| `angle` | [`number(Angle)`](/docs/kcl-std/types/std-types-number) | Angle to revolve (in degrees). Default is 360. | No |
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| `tolerance` | [`number(Length)`](/docs/kcl-std/types/std-types-number) | Tolerance for the revolve operation. | No |
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| `symmetric` | [`bool`](/docs/kcl-std/types/std-types-bool) | If true, the extrusion will happen symmetrically around the sketch. Otherwise, the extrusion will happen on only one side of the sketch. | No |
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| `bidirectionalAngle` | [`number(Angle)`](/docs/kcl-std/types/std-types-number) | If specified, will also revolve in the opposite direction to 'angle' to the specified angle. If 'symmetric' is true, this value is ignored. | No |
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| `tagStart` | [`tag`](/docs/kcl-std/types/std-types-tag) | A named tag for the face at the start of the revolve, i.e. the original sketch. | No |
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| `tagEnd` | [`tag`](/docs/kcl-std/types/std-types-tag) | A named tag for the face at the end of the revolve. | No |
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### Returns
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[`[Solid; 1+]`](/docs/kcl-std/types/std-types-Solid)
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### Examples
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```kcl
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part001 = startSketchOn(XY)
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|> startProfile(at = [4, 12])
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|> line(end = [2, 0])
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|> line(end = [0, -6])
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|> line(end = [4, -6])
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|> line(end = [0, -6])
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|> line(end = [-3.75, -4.5])
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|> line(end = [0, -5.5])
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|> line(end = [-2, 0])
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|> close()
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|> revolve(axis = Y) // default angle is 360
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```
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```kcl
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// A donut shape.
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sketch001 = startSketchOn(XY)
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|> circle(center = [15, 0], radius = 5)
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|> revolve(angle = 360, axis = Y)
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```
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```kcl
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part001 = startSketchOn(XY)
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|> startProfile(at = [4, 12])
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|> line(end = [2, 0])
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|> line(end = [0, -6])
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|> line(end = [4, -6])
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|> line(end = [0, -6])
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|> line(end = [-3.75, -4.5])
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|> line(end = [0, -5.5])
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|> line(end = [-2, 0])
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|> close()
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|> revolve(axis = Y, angle = 180)
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```
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```kcl
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part001 = startSketchOn(XY)
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|> startProfile(at = [4, 12])
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|> line(end = [2, 0])
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|> line(end = [0, -6])
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|> line(end = [4, -6])
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|> line(end = [0, -6])
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|> line(end = [-3.75, -4.5])
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|> line(end = [0, -5.5])
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|> line(end = [-2, 0])
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|> close()
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|> revolve(axis = Y, angle = 180)
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part002 = startSketchOn(part001, face = END)
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|> startProfile(at = [4.5, -5])
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|> line(end = [0, 5])
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|> line(end = [5, 0])
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|> line(end = [0, -5])
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|> close()
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|> extrude(length = 5)
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```
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```kcl
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box = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20])
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|> line(end = [20, 0])
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|> line(end = [0, -20])
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|> close()
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|> extrude(length = 20)
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sketch001 = startSketchOn(box, face = END)
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|> circle(center = [10, 10], radius = 4)
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|> revolve(angle = -90, axis = Y)
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```
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```kcl
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box = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20])
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|> line(end = [20, 0])
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|> line(end = [0, -20], tag = $revolveAxis)
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|> close()
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|> extrude(length = 20)
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sketch001 = startSketchOn(box, face = END)
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|> circle(center = [10, 10], radius = 4)
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|> revolve(angle = 90, axis = getOppositeEdge(revolveAxis))
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```
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```kcl
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box = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20])
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|> line(end = [20, 0])
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|> line(end = [0, -20], tag = $revolveAxis)
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|> close()
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|> extrude(length = 20)
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sketch001 = startSketchOn(box, face = END)
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|> circle(center = [10, 10], radius = 4)
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|> revolve(angle = 90, axis = getOppositeEdge(revolveAxis), tolerance = 0.0001)
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```
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```kcl
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sketch001 = startSketchOn(XY)
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|> startProfile(at = [10, 0])
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|> line(end = [5, -5])
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|> line(end = [5, 5])
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|> line(endAbsolute = [profileStartX(%), profileStartY(%)])
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|> close()
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part001 = revolve(
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sketch001,
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axis = {
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direction = [0.0, 1.0],
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origin = [0.0, 0.0]
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},
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)
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```
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```kcl
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// Revolve two sketches around the same axis.
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sketch001 = startSketchOn(XY)
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profile001 = startProfile(sketch001, at = [4, 8])
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|> xLine(length = 3)
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|> yLine(length = -3)
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|> xLine(length = -3)
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|> line(endAbsolute = [profileStartX(%), profileStartY(%)])
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|> close()
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profile002 = startProfile(sketch001, at = [-5, 8])
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|> xLine(length = 3)
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|> yLine(length = -3)
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|> xLine(length = -3)
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|> line(endAbsolute = [profileStartX(%), profileStartY(%)])
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|> close()
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revolve([profile001, profile002], axis = X)
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```
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```kcl
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// Revolve around a path that has not been extruded.
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profile001 = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20], tag = $revolveAxis)
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|> line(end = [20, 0])
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|> line(end = [0, -20])
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|> close(%)
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sketch001 = startSketchOn(XY)
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|> circle(center = [-10, 10], radius = 4)
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|> revolve(angle = 90, axis = revolveAxis)
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```
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```kcl
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// Revolve around a path that has not been extruded or closed.
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profile001 = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20], tag = $revolveAxis)
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|> line(end = [20, 0])
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sketch001 = startSketchOn(XY)
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|> circle(center = [-10, 10], radius = 4)
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|> revolve(angle = 90, axis = revolveAxis)
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```
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```kcl
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// Symmetrically revolve around a path.
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profile001 = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20], tag = $revolveAxis)
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|> line(end = [20, 0])
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sketch001 = startSketchOn(XY)
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|> circle(center = [-10, 10], radius = 4)
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|> revolve(angle = 90, axis = revolveAxis, symmetric = true)
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```
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```kcl
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// Bidirectional revolve around a path.
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profile001 = startSketchOn(XY)
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|> startProfile(at = [0, 0])
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|> line(end = [0, 20], tag = $revolveAxis)
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|> line(end = [20, 0])
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sketch001 = startSketchOn(XY)
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|> circle(center = [-10, 10], radius = 4)
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|> revolve(angle = 90, axis = revolveAxis, bidirectionalAngle = 50)
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```
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