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IfcPlanarExtent

Definition from IAI: The planar extent defines the extent along the two axes of the two-dimensional coordinate system, independently of its position.

NOTE  Corresponding STEP name: planar_extent. Please refer to ISO/IS 10303-46:1994, p. 141 for the final definition of the formal standard.
HISTORY  New entity in Release IFC2x Edition 2.

EXPRESS specification:

ENTITY IfcPlanarExtent
SUPERTYPE OF (IfcPlanarBox)
SUBTYPE OF ( IfcGeometricRepresentationItem);
SizeInX  :  IfcLengthMeasure;
SizeInY  :  IfcLengthMeasure;
END_ENTITY;

Attribute definitions:

SizeInX  :  The extent in the direction of the x-axis.
SizeInY  :  The extent in the direction of the y-axis.

Inheritance graph

ENTITY IfcPlanarExtent;
ENTITY IfcRepresentationItem;
INVERSE
LayerAssignments  :  SET OF IfcPresentationLayerAssignment FOR AssignedItems;
StyledByItem  :  SET [0:1] OF IfcStyledItem FOR Item;
ENTITY IfcGeometricRepresentationItem;
ENTITY IfcPlanarExtent;
SizeInX  :  IfcLengthMeasure;
SizeInY  :  IfcLengthMeasure;
END_ENTITY;