The SEDRIS Data Representation Model
APPENDIX A - Classes
Volume
|
Abstract Class Name: Volume
Subclasses
Definition
A geometric primitive shape that identifies an enclosed 3D solid.
Possible shapes include spheres (and implied points, where a point is
a degenerate sphere), parallelepiped, cylinders (and implied lines,
where a line is a degenerate cylinder). The shape is given by the
<Volume Extent> component, the location of
the shape centre is given by the <Location 3D>
component.
Primary Page in DRM Diagram:
Secondary Pages in DRM Diagram:
This class appears on only one page of the DRM class diagram.
Example
- A terrain region has a <Bounding Volume>
defined by a sphere with centre specified by the
<Location 3D> component and radius given by
the <Spherical Volume Extent>
component radius field.
- A parallelepiped <Volume>, describing the
<Collision Volume> of a house, is
represented by a component <Location 3D>
for the centre of the house and a component
<Parallelepiped Volume Extent>.
Constraints
None.
Composed of (two-way)
Inherited Field Elements
This class has no inherited field elements.
Notes
Composed of Notes
volume centre
volume shape
To locate and orient the volume within the currently scoped 'world'
spatial reference frame.
Prev: Vertex With Component Indices.
Next: Volume Extent.
Up:Index.
Last updated: October 1, 2002
|
Copyright © 2002 SEDRIS
|
|