Revolve

Creates a surface by revolving a profile curve that defines the surface shape around an axis.

Steps:

1. Select curves.

2. Pick the start of the revolve axis.

3. Pick the end of the revolve axis.

4. Click options.

Options

DeleteInput

Deformable

No

The resulting revolved surface is an exact revolve: a rational surface with fully-multiple knots at the quadrants. This kind of surface is not easy to deform smoothly by point editing.

Yes

The surface is rebuilt on the 'around' direction to a degree 3 non-rational surface. Specify how many points in that direction. Deformable revolves can be deformed smoothly with point editing.

DeformablePointCount

Specify the number of control points.

FullCircle

Revolves the input curve 360 degrees as a shortcut for specifying 360 degrees as the revolve angle. Using this option also sets the next use of the command to 360 as the revolve angle.

AskForStartAngle

No

The revolve starts from 0 (the input curve location).

Yes

Pick the angle (a number of degrees away from the current input curve location) the revolve will start.

-Revolve

RailRevolve

Creates a surface by revolving a profile curve that defines the surface shape around a rail curve that defines the surface edge.

Steps:

1. Select a profile curve.

2. Select a rail curve.

3. Pick the start of the axis.

4. Pick the end of the axis.

Options

ScaleHeight

The profile curve, in addition to being revolved, stretches along the revolve axis using the revolve axis origin as the scale base point. The distance from the revolve axis origin to the path curve start point along the revolve axis is the primary reference height, and the distances from the revolve axis origin to path curve control points along the revolve axis are the secondary reference heights.

You do not need ScaleHeight option if the rail curve is planar and perpendicular to the revolve axis. In this case, the result looks exactly the same both ways. This is the way RailRevolve is normally used.

Use the ScaleHeight option if the rail curve is not on a plane perpendicular to the revolve axis and you want a part of the profile curve to only revolve around the revolve axis, not to move along the revolve axis as it is revolved. This is the case if you want to build rail-revolved surfaces with smooth round ends even if the rail curve is not planar.

With the ScaleHeight option, the revolve axis origin location matters. The revolve axis origin is also the scale origin. The one-dimensional scaling happens parallel to the revolve axis.

If the rail curve is closed, the seam must be where the profile touches the rail for good results.