Table 6.16 — DRM_Areal_Feature

Property

Description

Class

  • <DRM Areal Feature>

Superclass

Subclass

  • None.

Definition

An instance of this DRM class is a <DRM Primitive Feature> that encloses a bounded region, such as a forest or a built-up area.

Class diagram

Figure 6.14 — DRM_Areal_Feature

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)

  • None.

Associated by (one-way) (inherited)

  • None.

Associated by (one-way)

  • None.

Associated with (two-way) (inherited)

Associated with (two-way)

Composed of (two-way) (inherited)

Composed of (two-way metadata) (inherited)

Composed of (two-way metadata)

  • None.

Component of (two-way) (inherited)

Component of (two-way)

  • None.

Constraints

Clarifications

1 An association between two <DRM Feature> instances indicates that they are alternate representations of the same environmental object.

2 An association between a <DRM Geometry Hierarchy> instance and a <DRM Feature> instance indicates that the <DRM Geometry Hierarchy> and the <DRM Feature> are alternate representations of the same environmental object.

3 An association between a <DRM Property Grid> instance and a <DRM Feature> instance indicates that the <DRM Feature> and the <DRM Property Grid> (or some specific cell data within that <DRM Property Grid>) are alternate representations of the same environmental object. Each associated <DRM Property Grid> will indicate which is the case.

4 These components support “attributes for derived objects”; that is, they are used only to specify texture mapping information for geometry that is derived from the <DRM Primitive Feature> by the consumer. These <DRM Image Mapping Function> components shall use <DRM Image Anchor> components to specify the mapping.

5 This is needed because in many cases, a <DRM Primitive Feature> may be significant only for a particular domain, such as radar.

Example(s)