Agreement on the valid value range for the angle in revolved area solids. 

Based on          IFC2x3

Initiator            Official buildinSMART IFC2x3 CV2.0 certification programme

Effects              Coordination View 2.0

Date                    2010 09


For the Angle attribute of IfcRevolvedAreaSolid the agreements are made:

    * the value range of Angle is 0 (exclusive) .. 360 (inclusive) if the unit type is 'degree', or 0π (exclusive) .. 2π (inclusive) if the unit type is RADIAN.

    * therefore all values have to be positive

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