Subclasses of <Geometry Hierarchy>:<Aggregate Geometry>

Primitive Geometry

Geometry Hierarchy

Feature

Aggregate Geometry

. . .

Geometry

Geometry

Model Instance

Property Grid

Hook Point

*

*

*

*

*

*

<Spatial Index Related Geometry>

<Level of Detail Related Geometry>

...

<Union of Geometry Hierarchy>

<Union of Primitive Geometry>

There are 14 concrete subclasses.

DRM Diagram - Sheet 4

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