Note: There is a newer version of this specification see VEC 2.1.0

Specification for the description of a three-dimensional building block. A building block is a reusable section of a geometry.

General Information

Attribute Value
Owner geo_3d
Applied Stereotype
Base Classifier Specification
Is Abstract false
Derived Classifiers


Name Type Mult. Description Owning Classifier
identification String 1

Specifies a unique identification of the specification. The identification is guaranteed to be unique within the document containing the specification. For all VEC-documents a Specification-instance can be trusted to be identical if the DocumentVersion-instance is the same (see DocumentVersion) and the identification of the Specification is the same.

description AbstractLocalizedString 0..*

Specifies additional, human readable information about the specification.


Outgoing Relations

Other End This End General
Role Type Mult. Agg. Unique Ordered Mult. Description
placedElementViewItem3D OccurrenceOrUsageViewItem3D 0..* Y Y N 1 Specifies the view items for OccurrenceOrUsages in a BuildingBlockSpecification3D.
cartesianPoint CartesianPoint3D 0..* Y Y N 0..1 Specifies the CartesianPoint3Ds that are used in the BuildingBlockSpecification3D.
geometrySegment GeometrySegment3D 0..* Y Y N 1

Specifies the GeometrySegment3Ds defined by the BuildingBlockSpecification3D.

geometryNode GeometryNode3D 0..* Y Y N 1 Specifies the GeometryNode3Ds defined by the BuildingBlockSpecification3D.
baseUnit Unit 1 N Y N 0..*
topologyZone TopologyZone 0..1 N Y N 0..*

References the Zone that is building block represents. This shall be a TopologyZone with the type "DmuZone".

Incoming Relations

This End Other End General
Role Mult. Agg. Unique Ordered Type Mult. Description
referenced3DBuildingBlock 1 N Y N BuildingBlockPositioning3D 0..*

References the building block that is positioned.