Class Name: Cylindrical Volume Extent

Superclass - Volume Extent

Definition

Specifies the major and minor axes, length and orientation of an elliptical cylinder volume relative to an unspecified location for the volume center (at the mid point of all three axes).

Primary Page in DRM Diagram:

• 23

Example

1. A Collision Volume for a car bumper modeled as a line segment uses a (degenerate) Cylindrical Volume Extent with major_axis_radius = minor_axis_radius = 0.0.

FAQs

How is the direction of the cylinder's axis determined?

The cylinder axis direction is perpendicular to the two component Reference Vectors, which give the major and minor axes of the elliptical cross-section.

Constraints

Composed of (one-way)

• exactly (2) {ordered} Reference Vectors (notes)

Component of (one-way)(inherited)

• optionally, some Volumes
• optionally, some Volume Level of Detail Data
• optionally, some Volume Light Behaviors

Field Elements

Notes

Composed of Notes

Reference_Vector

 elliptic cross section axes:
 First component is Major Axis direction with
   <Reference Vector> type = SE_MAJOR_AXIS
 Second component minor Axis direction with
  <Reference Vector> type = SE_MINOR_AXIS

Fields Notes

major_axis_radius

in meters >= 0.0

minor_axis_radius

in meters >= 0.0

cylinder_length

in meters > 0.0