IfcSolidAngleMeasure
Definition from ISO/CD 10303-41:1992: A solid angle measure is the value of an angle in a solid.
Usually measured in Steradians, (sr, m2/m2).
Type: REAL
NOTE Corresponding STEP name: solid_angle_measure, please refer to ISO/IS 10303-41:1994 for the final definition of the formal standard.
HISTORY New type in IFC Release 1.5.1.
EXPRESS specification:
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