Abstract Class Name: Geometry Hierarchy

Superclass - <Geometry Representation>

Subclasses

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

Definition

An instance of one of the concrete subclasses of this DRM class is a hierarchically organized collection of <Geometry Representation> instances.

Primary Page in DRM Diagram:

• 3

Secondary Pages in DRM Diagram:

• 1
• 2
• 4
• 5
• 7
• 8
• 9
• 20
• 22
• 23

Example

See concrete subclasses for examples.

Constraints

• <<Publishable Object>>
• <<No Attribute Conflicts>>
• <<Non Crossing Aggregations>>
• <<Non Cyclic Aggregations>>
• <<Precedence of Property Set Index>>
• <<Non Crossing Associations>>

Associated to (one-way)

• zero or more <Feature Representation> instances, each with a <Base Association Data> link object (notes)
• zero or more <Geometry Hierarchy> instances, each with a <Base Association Data> link object (notes)

Associated by (one-way)

• zero or more <Feature Representation> instances, each with a <Base Association Data> link object (notes)
• zero or more <Geometry Hierarchy> instances, each with a <Base Association Data> link object (notes)
• zero or one <Hierarchy Summary Item> instance (notes)
• zero or more <Reference Surface> instances (notes)

Composed of (two-way) (inherited)

• zero or one <Classification Data> instance
• zero or more {ordered} <Property Set Index> instances
• zero or more <Property Table> instances
• zero or more <Property Table Reference> instances
• zero or more <Property Value> instances

Composed of (two-way)

• zero or one <Reference Surface> instance
• zero or more <Sound Instance> instances

Composed of (two-way metadata) (inherited)

• zero or one <Time Constraints Data> instance

Composed of (two-way metadata)

• zero or one <Access> instance
• zero or more <Cross Reference> instances
• zero or one <Data Quality> instance
• zero or one <Description> instance

Component of (two-way)

• zero or more <Alternate Hierarchy Related Geometry> instances, each with a <Hierarchy Data> link object
• zero or more <Animation Related Geometry> instances
• zero or more <Classification Related Geometry> instances, each with a <Classification Data> link object
• zero or one <Environment Root> instance
• zero or one <Geometry Model> instance
• zero or more <LOD Related Geometry> instances, each with a <Base LOD Data> link object
• zero or more <Octant Related Geometry> instances, each with a <Octant Data> link object
• zero or more <Perimeter Related Geometry> instances, each with a <Perimeter Data> link object
• zero or more <Quadrant Related Geometry> instances, each with a <Quadrant Data> link object
• zero or more <Separating Plane Relations> instances, each with a <Separating Plane Data> link object
• zero or more <Spatial Index Related Geometry> instances, each with a <Spatial Index Data> link object
• zero or more <State Related Geometry> instances, each with a <State Data> link object
• zero or more <Time Related Geometry> instances, each with a <Time Constraints Data> link object
• zero or more <Union Of Geometry Hierarchy> instances

Inherited Field Elements

Notes

Associated to Notes

Feature_Representation

 An association between a <Feature Representation> instance
 and a <Geometry Hierarchy> instance indicates that the
 environmental object(s) that they represent have the
 semantic relationship indicated by the <Base Association Data>
 instance on the association relationship.

Geometry_Hierarchy

 An association between two <Geometry Hierarchy> instances
 indicates that the environmental object(s) that they
 represent have the semantic relationship indicated by
 the <Base Association Data> instance on the association
 relationship.

Associated from Notes

Feature_Representation

 An association between a <Feature Representation> instance
 and a <Geometry Hierarchy> instance indicates that the
 environmental object(s) that they represent have the
 semantic relationship indicated by the <Base Association Data>
 instance on the association relationship.

Geometry_Hierarchy

 An association between two <Geometry Hierarchy> instances
 indicates that the environmental object(s) that they
 represent have the semantic relationship indicated by
 the <Base Association Data> instance on the association
 relationship.

Hierarchy_Summary_Item

 An association from a <Hierarchy Summary Item> instance to a
 <Geometry Hierarchy> indicates that the <Hierarchy Summary Item>
 summarizes that <Geometry Hierarchy>.

Reference_Surface

 An association from a <Reference Surface> instance to a
 <Geometry Hierarchy> indicates that the <Geometry Hierarchy>
 organizes the geometric objects that specify the resolution
 surface of the <Reference Surface>.