Class Name: Collision Volume

Superclass - <Volume>

Subclasses

Definition

An instance of this DRM class is a <Volume> that encompasses part (possibly all) of the <Aggregate_Geometry> of which it is a component, and is used in collision detection.

Primary Page in DRM Diagram:

• 9

Secondary Pages in DRM Diagram:

• 4

Example

1. The cylinder that describes the gun tube of a weapon system.

2. A perpendicular vector emanating from the bumper of a car is a <Collision Volume> of <Volume> "vector", and is used in computing intersection of the front of the car with other objects.

FAQs

May an <Aggregate Geometry> specify the same volume of space for both its <Bounding Volume> and its <Collision Volume>?

Yes.

If an <Aggregate Geometry> instance has multiple <Collision Volume> components, how are they to be interpreted?

The complete volume specified by the union of all the individual <Collision Volume> components is that which is used for collision detection. This capability is provided to allow <Collision Volume> information to be provided for complex shapes.

Constraints

Composed of (two-way)(inherited)

• one <Location 3D> instance (notes)
• one <Volume Extent> instance (notes)
• zero or one <World Transformation> instance (notes)

Component of (two-way)

• one <Aggregate Geometry> instance

Inherited Field Elements

Notes

Composed of Notes

Location_3D

 volume centre

Volume_Extent

 volume shape

World_Transformation

 To locate and orient the volume within the currently scoped 'world'
 spatial reference frame.