Table 6.92 — DRM_Geometry_Model_Instance

Property

Description

Class

  • <DRM Geometry Model Instance>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class specifies a single use of a <DRM Geometry Model> instance within a given transmittal, including variations or specialization unique to that case. In particular, a <DRM Geometry Model Instance> instance is used to transform a <DRM Geometry Model> instance into the SRF of another <DRM Geometry Model> instance or that of a <DRM Environment Root> instance.

Class diagram

Figure 6.111 — DRM_Geometry_Model_Instance

Inherited field elements

Field name

Range

Field data type

None

   

Field elements

Field name

Range

Field data type

None

   

Default field values

Default field values for DRM_Geometry_Model_Instance

Associated to (one-way) (inherited)

Associated to (one-way)

Associated by (one-way) (inherited)

Associated by (one-way)

  • None.

Associated with (two-way) (inherited)

  • None.

Associated with (two-way)

  • None.

Composed of (two-way) (inherited)

Composed of (two-way)

Composed of (two-way metadata) (inherited)

Composed of (two-way metadata)

  • None.

Component of (two-way) (inherited)

Component of (two-way)

  • None.

Constraints

Clarifications

1An association between a <DRM Feature Representation> instance and a <DRM Geometry Hierarchy> instance indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> link object on the association relationship.

2An association between two <DRM Geometry Hierarchy> instances indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> link object on the association relationship.

3An association from a <DRM Geometry Model Instance> instance to a <DRM Geometry Model> instance indicates that the <DRM Geometry Model Instance> instances that particular <DRM Geometry Model> instance.

4An association between a <DRM Feature Representation> instance and a <DRM Geometry Hierarchy> instance indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> link object on the association relationship.

5An association between two <DRM Geometry Hierarchy> instances indicates that the environmental object(s) that they represent have the semantic relationship indicated by the <DRM Base Association Data> link object on the association relationship.

6An association from a <DRM Hierarchy Summary Item> instance to a <DRM Geometry Hierarchy> instance indicates that the <DRM Hierarchy Summary Item> instance summarizes that <DRM Geometry Hierarchy> instance.

7An association from a <DRM Reference Surface> instance to a <DRM Geometry Hierarchy> instance indicates that the <DRM Geometry Hierarchy> instance organizes the geometric objects that specify the reference surface geometry of the <DRM Reference Surface> instance.

8The <DRM Conformal Behaviour> components allow a <DRM Geometry Model Instance> instance to conform to the underlying geometry. If present, the <DRM Conformal Behaviour> components are applied after any <DRM Transformation> instance that is present.

9The <DRM Transformation> component positions and orients the <DRM Geometry Model Instance> instance in the target SRF.

Example(s)