Table 6.100—DRM_Feature_Model_Instance

Property

Description

Superclass

· <DRM Feature Hierarchy>

Class

· <DRM Feature Model Instance>

Subclass

· none

Definition

This DRM class specifies a single case of the existence of a <DRM Feature Model> within a given transmittal, including variations or specialization unique to that case.

Example(s)

· Consider a <DRM Model> of a forested area, consisting of a <DRM Geometry Model> describing its renderable geometry, and a <DRM Feature Model> describing it in terms of a collection of <DRM Areal Feature>s. The <DRM Geometry Model>'s <DRM Geometry Hierarchy> and the <DRM Feature Model>'s component <DRM Union of Features> are connected by an association relationship, to indicate that they are alternate representations of the same entity.

Wherever the <DRM Model> is to be instanced, a <DRM Feature Model Instance> object will be placed, with the appropriate <DRM Transformation> to locate it in space and any <DRM Expression>s required for <DRM Variable>s within the <DRM Feature Model>.

Inherited field elements

field_name	range	Field_Data_Type
none

Field elements

field_name	range	Field_Data_Type
none

Associated to (one-way) (inherited)

· none

Associated to (one-way)

· one <DRM Feature Model>

Associated by (one-way) (inherited)

· zero or one <DRM Hierarchy Summary Item>

Associated by (one-way)

· none

Associated with (two-way) (inherited)

· zero or more <DRM Feature>s

· zero or more <DRM Geometry Hierarchy>s

· zero or more <DRM Property Grid>s

Associated with (two-way)

· none

Composed of (two-way) (inherited)

· zero or more {ordered} <DRM Attribute Set Index>s

· zero or one <DRM Classification Data>

· zero or more <DRM Label>s

· zero or more <DRM Property Table>s

· zero or more <DRM Property Table Reference>s

· zero or more <DRM Property Value>s

· zero or one <DRM Reference Surface>

· zero or one <DRM Rendering Priority Level>

· zero or more <DRM Sound Instance>s

· zero or one <DRM Time Constraints Data>

Composed of (two-way)

· zero or more <DRM Expression>s through <DRM Model Instance Template Index>

· zero or one <DRM Transformation>

Composed of (two-way metadata) (inherited)

· zero or one <DRM Access>

· zero or more <DRM Browse Media>s

· zero or one <DRM Citation>

· zero or more <DRM Cross Reference>s

· zero or one <DRM Data Quality>

· zero or one <DRM Description>

· zero or one <DRM Keywords>

· zero or one <DRM Point Of Contact>

Composed of (two-way metadata)

· none

Component of (two-way) (inherited)

· zero or more <DRM Alternate Hierarchy Related Features>s through <DRM Hierarchy Data>s

· zero or more <DRM Classification Related Features>s through <DRM Classification Data>s

· zero or one <DRM Environment Root>

· zero or one <DRM Feature Model>

· zero or more <DRM Level Of Detail Related Features>s through <DRM Base Level Of Detail Data>s

· zero or more <DRM Oct Tree Related Features>s through <DRM Oct Tree Data>s

· zero or more <DRM Perimeter Related Features>s through <DRM Perimeter Data>s

· zero or more <DRM Quad Tree Related Features>s through <DRM Quad Tree Data>s

· zero or more <DRM Spatial Index Related Features>s through <DRM Spatial Index Data>s

· zero or more <DRM State Related Features>s through <DRM State Data>s

· zero or more <DRM Time Related Features>s through <DRM Time Constraints Data>s

· zero or more <DRM Union Of Features>s

Component of (two-way)

· none

Constraints

· Distinct link objects

· Model spatial reference frame

· No attribute conflicts

· Non-crossing aggregations

· Non-crossing associations

· Non-cyclic aggregations

· Precedence of Attribute_Set_Index

Notes

none

Class diagram

<DRM Feature Model Instance>