ISO/IEC 18023-1:200x(E) — Table 6.83 DRM_Feature

Table 6.83 — DRM_Feature_Topology

Property

Description

Class

<DRM Feature Topology>

Superclass

<DRM SEDRIS Abstract Base>

Subclass

Definition

An instance of a concrete class derived from this DRM class specifies both the geometric aspects (such as location and shape) and topological aspects (such as adjacency) of part of one or more <DRM Feature Representation> instances.

A topological surface consists of a collection of <DRM Feature Topology> instances related to one another through a variety of topological relationships.

Clarifications

None.

Class diagram

Figure 6.95 — DRM_Feature_Topology

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)

None.

Associated with (two-way)

None.

Composed of (two-way) (inherited)

None.

Composed of (two-way)

zero or more <DRM Property Value> instances

Composed of (two-way metadata) (inherited)

None.

Composed of (two-way metadata)

None.

Component of (two-way) (inherited)

None.

Component of (two-way)

zero or more <DRM Union Of Feature Topology> instances

Constraints

Example(s)

In a collection of <DRM Feature Representation> instances representing a transportation network, the <DRM Feature Face> instances represent built-up areas, airfields, railroad yards, and parking lots, the <DRM Feature Edge> instances represent their boundaries as well as roads, railroads, and runways, and the <DRM Feature Node> instances represent road intersections and railroad crossings.