Creating Frustums

A frustum is a general elliptical right frustum, which can also be thought of as a portion of a right elliptical cone.

Command

[Create] Frustum [Height|Z] <z-height> Radius <x-radius> [Top <top_radius>]

[Create] Frustum [Height|Z] <z-height> Major Radius <radius> Minor Radius <radius> [Top <top_radius>]

[Create] Frustum Volume <id> [Axis <options>]

Notes

• If used, Major Radius defines the x-radius and Minor Radius the y-radius.
• If used, Top Radius defines the x-radius at the top of the frustum; the top y radius is calculated based on the ratio of the major and minor radii.
• A frustum can also be created to bound a volume. An optional axis for the frustum can be specified. If not specified, the axis will be determined from a tight bounding box.