Table 6.122—DRM_Geometry_Node

Property

Description

Superclass

·         <DRM Geometry Topology>

Class

·         <DRM Geometry Node>

Subclass

·         none

Definition

An object of this DRM class specifies the topologic attribute that identifies a significant place, or the connecting point of higher-dimensional topologic attribute(s). It is the component of one (or more) objects that have a single <DRM Location 3D>. The location of a <DRM Geometry Node> is the same location as the spatially located object of which the node is a component.

Example(s)

·         An intersection of two roads.

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)

·         zero or more <DRM Geometry Edge>s1

Associated with (two-way) (inherited)

·         none

Associated with (two-way)

·         zero or more <DRM Base Vertex>

·         zero or more <DRM Ellipse>s2

·         zero or more <DRM Elliptic Cylinder>s3

·         zero or one <DRM Geometry Face>4

·         zero or more <DRM Point Geometry>s

·         zero or more <DRM Property Grid Hook Point>s

Composed of (two-way) (inherited)

·         zero or one <DRM Geometry ID>

Composed of (two-way)

·         zero or more <DRM Connected Geometry Edge>s

·         zero or more <DRM Same As Geometry Node>s

Composed of (two-way metadata) (inherited)

·         none

Composed of (two-way metadata)

·         none

Component of (two-way) (inherited)

·         one <DRM Union Of Geometry Topology>

Component of (two-way)

·         none

Constraints

·         Connected edge restrictions

·         Contained node restrictions

Notes

1 The other half of this relationship is supplied by the <DRM Connected Geometry Edge> component of the <DRM Geometry Node>.

2 The <DRM Geometry Node> corresponds to the <DRM Location> representing the centre of the <DRM Ellipse>.

3 The <DRM Geometry Node> corresponds to the <DRM Location> representing the centre of the <DRM Elliptic Cylinder>.

4 The <DRM Geometry Face> that contains the <DRM Geometry Node>, if any.

Class diagram

<DRM Geometry Node>