ISO/IEC 18023-1:200x(E) — Table 6.73 DRM_Face

Table 6.73 — DRM_Face_Direction

Property

Description

Class

<DRM Face Direction>

Superclass

<DRM SEDRIS Abstract Base>

Subclass

None.

Definition

An instance of this DRM class specifies which side (the front or the back) of the given topological face is associated with the given <DRM Areal Feature> instance.

The front field specifies whether the front side of the given face instance is that associated with the given DRM object.

Clarifications

None.

Class diagram

Figure 6.84 — DRM_Face_Direction

Inherited field elements

Field name	Range	Field data type
None

Field elements

Field name	Range	Field data type
front		Boolean

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)

None.

Composed of (two-way metadata) (inherited)

None.

Composed of (two-way metadata)

None.

Component of (two-way) (inherited)

None.

Component of (two-way)

None.

Constraints

Example(s)

Consider an <DRM Areal Feature> instance representing a grass-covered region, consisting of a single <DRM Feature Face> instance. The <DRM Face Direction> link data on the relationship between them is set to TRUE, indicating that the front (that is, the top) side of the face corresponds to the <DRM Areal Feature> instance.