IfcLinearDimension

Definition from IAI: The linear dimension is a draughting callout that presents the length (or distance) between two points along a linear curve. It consists of a dimension curve and optionally one or two projection curves.

NOTE: The dimension text is handled throught the IfcStructuredDimensionCallout and associated via the IfcDimensionCalloutRelationship.

Illustration:

NOTE: The IfcLinearDimension is an entity that had been adopted from ISO 10303, Industrial automation systems and integration—Product data representation and exchange, Part 202: Application protocol: Associative draughting.

NOTE Corresponding STEP name: linear_dimension. Please refer to ISO/IS 10303-202:1994 page 495 for the final definition of the formal standard.

HISTORY New entity in Release IFC2x 2nd Edition.

EXPRESS specification:

ENTITY IfcLinearDimension

SUBTYPE OF (

IfcDimensionCurveDirectedCallout);

END_ENTITY;

Inheritance graph

ENTITY IfcLinearDimension;

ENTITY IfcRepresentationItem;

INVERSE

LayerAssignments

SET OF IfcPresentationLayerAssignment FOR AssignedItems;

StyledByItem

SET [0:1] OF IfcStyledItem FOR Item;

ENTITY IfcGeometricRepresentationItem;

ENTITY IfcDraughtingCallout;

Contents

SET [1:?] OF IfcDraughtingCalloutElement;

INVERSE

IsRelatedFromCallout

SET OF IfcDraughtingCalloutRelationship FOR RelatedDraughtingCallout;

IsRelatedToCallout

SET OF IfcDraughtingCalloutRelationship FOR RelatingDraughtingCallout;

ENTITY IfcDimensionCurveDirectedCallout;

ENTITY IfcLinearDimension;

END_ENTITY;