Natural language names
Plane Angle Measure
Mesure d'angle plan
Semantic definitions at the type
Type definition

An IfcPlaneAngleMeasure is the value of an angle in a plane.

Usually measured in radian (rad, m/m = 1), but also grads may be used. The grad unit has to be declared as a conversion based unit based on radian unit.

NOTE  IfcPlaneAngleMeasure is used where angles need to be described to an accuracy of less than one degree and expressed as decimal parts of an angle. It is widely used for angular measurement except for situations where accuracy needs to be defined using arc measurement; for which purpose the IfcCompoundPlaneAngleMeasure is provided.

Type: REAL

NOTE  Type adapted from plane_angle_measure defined in ISO 10303-41.
HISTORY  New type in IFC1.5.1.
Formal representations
XML Specification
 <xs:simpleType name="IfcPlaneAngleMeasure">
  <xs:restriction base="xs:double"/>
EXPRESS Specification
TYPE IfcPlaneAngleMeasure = REAL;

Link to EXPRESS-G diagram EXPRESS-G diagram

References  References: IfcBendingParameterSelect IfcRevolvedAreaSolid IfcCurveSegment2D IfcMeasureValue IfcFillAreaStyleHatching IfcLightDistributionData IfcAsymmetricIShapeProfileDef IfcIShapeProfileDef IfcLShapeProfileDef IfcTShapeProfileDef IfcUShapeProfileDef IfcStructuralLoadSingleDisplacement

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