Note: There is a newer version of this specification see VEC 2.1.0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

Type Role Mult. Mult. Description
TopologyZone 0..1 0..*

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

GeometrySegment3D geometrySegment 0..* 1

Specifies the GeometrySegment3Ds defined by the BuildingBlockSpecification3D.

OccurrenceOrUsageViewItem3D placedElementViewItem3D 0..* 1 Specifies the view items for OccurrenceOrUsages in a BuildingBlockSpecification3D.
Unit baseUnit 1 0..*
GeometryNode3D geometryNode 0..* 1 Specifies the GeometryNode3Ds defined by the BuildingBlockSpecification3D.
CartesianPoint3D cartesianPoint 0..* 1 Specifies the CartesianPoint3Ds that are used in the BuildingBlockSpecification3D.

Incoming Relations

Type Mult. Role Mult. Description
BuildingBlockPositioning3D 0..* referenced3DBuildingBlock 1

References the building block that is positioned.