![]()  | Rotational Stiffness Select | 
![]()  | Sélection de rigidité rotationnelle | 
| Item | SPF | XML | Change | Description | IFC2x3 to IFC4 4.0.0.0 | 
|---|---|---|---|---|
| IfcRotationalStiffnessSelect | ADDED | IFC2x3 to IFC4 4.0.0.0 | ||
| IfcRotationalStiffnessSelect | ADDED | 
A measure of rotational stiffness. TRUE denotes infinite stiffness (rigidity). FALSE denotes no stiffness (a release). A numeric value denotes finite linear-elastic stiffness.
HISTORY New type in IFC4.
| Type | Description | 
|---|---|
| IfcBoolean | |
| IfcRotationalStiffnessMeasure | 
 <xs:group name="IfcRotationalStiffnessSelect">
  <xs:choice>
   <xs:element ref="ifc:IfcBoolean-wrapper"/>
   <xs:element ref="ifc:IfcRotationalStiffnessMeasure-wrapper"/>
  </xs:choice>
 </xs:group>
TYPE IfcRotationalStiffnessSelect = SELECT (
 IfcBoolean, 
 IfcRotationalStiffnessMeasure);
END_TYPE;
  References: IfcBoundaryNodeCondition