Rendering and Interpolation rollouts

All spline-based shapes share these parameters. See Splines for an explanation of these parameters.

Creation Method rollout

These options determine the sequence of mouse clicks involved in the creation of the arc.

End-End-Middle

Drag and release to set the two endpoints of the arc, and then click to specify the third point between the two endpoints.

Center-End-End

Press the mouse button to specify the center point of the arc, drag and release to specify one endpoint of the arc, and click to specify the other endpoint of the arc.

Parameters rollout

Once you have created an arc, you can make changes using the following parameters:

Radius

Specifies the arc radius.

From

Specifies the location of the start point as an angle measured from the local positive X axis.

To

Specifies the location of the end point as an angle measured from the local positive X axis.

Pie Slice

When on, creates a closed spline in the form of a pie. The start point and end point are connected to the center with straight segments.

Closed pie slice arcs

Reverse

When on, the direction of the arc spline is reversed, and the first vertex is placed at the opposite end of an open arc. As long as the shape remains an original shape (and not an editable spline), you can switch its direction by toggling Reverse. Once the arc is converted to an editable spline, you can use Reverse at the Spline sub-object level to reverse direction.