REVOLVE Command
Creates a 3D solid or surface by sweeping an object around an axis.
Open profiles create surfaces and closed profiles can create either a solid or a surface. The Mode option controls whether a solid or a surface is created. When creating a surface, SURFACEMODELINGMODE system variable controls if a procedural or NURBS surface is created.
Revolve path and profile curves can be:
- Open or closed
- Planar or non-planar
- Solid and surface edges
- A single object (to extrude multiple lines, convert them to a single object with the JOIN command)
- A single region (to extrude multiple regions, first convert them to a single object with the UNION command)
To automatically delete the profile, use the DELOBJ system variable. If associativity is on, the DELOBJ system variable is ignored and the originating geometry is not deleted.
Objects that can be Revolved
|
Surfaces |
Elliptical Arcs |
2D Solids |
|
Solids |
2D and 3D Splines |
Traces |
|
Arcs |
2D and 3D Polylines |
Ellipses |
|
Circles |
Regions |
|
Select face and edge sub-objects by pressing Ctrl while you select them. You cannot revolve objects contained within a block or objects that will self-intersect. REVOLVE ignores the width of a polyline and revolves from the center of the path of the polyline.
The right-hand rule determines the positive direction of rotation.
The following prompts are displayed:
Objects to Revolve
Specifies the objects to be revolved about an axis.
Mode
Controls whether the revolve action creates a solid or a surface. Surfaces are extended as either NURBS surfaces or procedural surfaces, depending on the SURFACEMODELINGMODE system variable.
Axis Start Point
Specifies the first point of the axis of revolution. The positive axis direction is from the first to the second point.
Axis Endpoint
Sets the endpoint for the axis revolution.
Start Angle
Specifies an offset for the revolution from the plane of the object being revolved.
Drag your cursor to specify and preview the start angle of the object.
Angle of Revolution
Specifies how far the selected object revolves about the axis.
A positive angle revolves the objects in a counterclockwise direction. A negative angle revolves the objects in a clockwise direction. You can also drag the cursor to specify and preview the angle of revolution.
Object
Specifies an existing object to be used as an axis. The positive axis direction is from the closest to the farthest endpoint of this object.
You can use lines, linear polyline segments, and linear edges of solids or surfaces as an axis.
Select an edge sub-object by pressing Ctrl while you select an edge.
X (Axis)
Sets the positive X axis of the current UCS as the positive axis direction.
Y (Axis)
Sets the positive Y axis of the current UCS as the positive axis direction.
Z (Axis)
Sets the positive Z axis of the current UCS as the positive axis direction.
Reverse
Changes the direction of the revolve; similar to entering a - (minus) angle value. The revolved object on the right shows a spline revolved at the same angle as the object on the left, but using the reverse option.
Expression
Enter a formula or equation to specify the revolve angle.
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