Table 6.277 — DRM_Time_Related_Features

Property

Description

Class

  • <DRM Time Related Features>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class is an aggregation of <DRM Feature Hierarchy> instances, in which each branch is a representation of the same environmental entity at a different point in time, as indicated by the corresponding <DRM Time Constraints Data> instance.

The time_data_type field specifies the subclass of <DRM Base Time Data> of which each <DRM Time Constraints Data> link object in the given organization is to be composed.

Clarifications

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

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

3 An association between a <DRM Property Grid> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) represented by the <DRM Feature Representation> instance and the <DRM Property Grid> instance (or some specific cell data within that <DRM Property Grid> instance) have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. Each associated <DRM Property Grid> instance will indicate whether the entire <DRM Property Grid> instance or only some specific cell data within it is participating in the relationship in question.

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

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

6 An association between a <DRM Property Grid> instance and a <DRM Feature Representation> instance indicates that the environmental object(s) represented by the <DRM Feature Representation> instance and the <DRM Property Grid> instance (or some specific cell data within that <DRM Property Grid> instance) have the semantic relationship indicated by the <DRM Base Association Data> instance on the association relationship. Each associated <DRM Property Grid> instance will indicate whether the entire <DRM Property Grid> instance or only some specific cell data within it is participating in the relationship in question.

7 This relationship exists to support attributes for derived objects. That is, these components are used only to specify texture mapping information for geometry that is to be derived from the <DRM Aggregate Feature> by the consumer. These <DRM Image Mapping Function> instances shall use <DRM Image Anchor> components to specify the mapping.

8 This is needed for cases in which an <DRM Aggregate Feature> instance is significant only for a particular domain, such as radar.

Class diagram

Figure 6.331 — DRM_Time_Related_Features

Inherited field elements

Field name

Range

Field data type

unique_descendants

 

Boolean

strict_organizing_principle

 

Boolean

Field elements

Field name

Range

Field data type

time_data_type

 

Time_Data_Type

Associated to (one-way) (inherited)

Associated to (one-way)

  • None.

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

Example(s)