Abstract Class Name: Geometry Hierarchy

Superclass - Geometry

Subclasses

• Aggregate Geometry
• Property Grid Hook Point
• Geometry Model Instance

Definition

A super-class of Property Grids and organizational concepts used to create hierarchical 'trees' of Geometry. This class is also used to capture the associations between Geometry and Features. If a Geometry is associated with a Feature, then the Geometry is an alternate representation of the Feature, and vice-versa.

Primary Page in DRM Diagram:

• 3

Secondary Pages in DRM Diagram:

• 1
• 2
• 4
• 6
• 7
• 8
• 21

Example

See specific subclasses for examples.

Constraints

• No Attribute Conflicts
• Non Crossing Aggregations
• Non Cyclic Aggregations
• Precedence of Attribute Set Index
• Non Crossing Associations

Associated by (one-way)

• optionally, a Hierarchy Summary Item
• optionally, some Reference Surfaces

Associated with (two-way)

• optionally, some Features
• optionally, some Geometry Hierarchies

Composed of (one-way)(inherited)

• optionally, some {ordered} Attribute Set Indices
• optionally, a Classification Data
• optionally, some Property Tables
• optionally, some Property Table References
• optionally, some Property Values

Composed of (one-way)

• optionally, a Reference Surface
• optionally, some Sound Instances
• optionally, a Spatial Domain

Composed of (one-way metadata)(inherited)

• optionally, a Time Constraints Data

Composed of (one-way metadata)

• optionally, an Access
• optionally, some Browse Graphics
• optionally, some Cross References
• optionally, a Data Quality
• optionally, a Keywords
• optionally, a Point of Contact

Component of (two-way)

• optionally, some Alternate Hierarchy Related Geometries through Geometry Hierarchy Data
• optionally, some Animation Related Geometries
• optionally, some Classification Related Geometries through Geometry Classification Data
• optionally, an Environment Root
• optionally, some Geometry Separating Plane Relations through Geometry Separating Plane Data
• optionally, a Geometry Model
• optionally, some Level of Detail Related Geometries through Geometry Level of Detail Data
• optionally, some Oct Tree Related Geometries through Geometry Oct Tree Data
• optionally, some Time Related Geometries through Geometry Time Constraints Data
• optionally, some Perimeter Related Geometries through Geometry Perimeter Data
• optionally, some Quad Tree Related Geometries through Geometry Quad Tree Data
• optionally, some Spatial Index Related Geometries through Geometry Spatial Index Data
• optionally, some State Related Geometries through Geometry State Data
• optionally, some Union of Geometry Hierarchies