Table 6.314—DRM_Universal_Feature_Face

Property

Description

Superclass

·         <DRM Feature Face>

Class

·         <DRM Universal Feature Face>

Subclass

·         none

Definition

An object of this DRM class specifies a DRM_Feature_Face object that represents the infinite area "outside" an explicitly defined topological surface. A <DRM Universal Feature Face> has no explicitly defined outer boundary, but will have at least one explicit inner boundary.

Example(s)

·         A topological surface represents the terrain surface over a one degree square area. The <DRM Universal Feature Face> object within this topological surface represents the infinite area outside of this one degree square.

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)

·         zero or more <DRM Feature Edge>s1

Associated by (one-way)

·         none

Associated with (two-way) (inherited)

·         zero or more <DRM Areal Feature>s through <DRM Face Direction>s

·         zero or one <DRM Feature Face>

·         zero or more <DRM Feature Node>2

Associated with (two-way)

·         none

Composed of (two-way) (inherited)

·         zero or one <DRM Feature ID>

·         zero or more <DRM Internal Feature Face Ring>s

·         zero or more <DRM Property Value>s

·         zero or more <DRM Same As Feature Face>s

Composed of (two-way)

·         none

Composed of (two-way metadata) (inherited)

·         none

Composed of (two-way metadata)

·         none

Component of (two-way) (inherited)

·         zero or more <DRM Union Of Feature Topology>s

Component of (two-way)

·         none

Constraints

·         Contained node restrictions

·         Edges bordering faces

·         Feature_Edge restrictions

·         No attribute conflicts

·         Non-crossing Associations

·         Universal_Feature_Face level 3

Notes

none

Class diagram

<DRM Universal Feature Face>