IfcBoolean is a defined data type of simple data type Boolean. It is required since a select type (IfcSimpleValue) cannot directly include simple types in its select list. A Boolean type can have value TRUE or FALSE.
Type: BOOLEAN
HISTORY New type in IFC1.5.1.
<xs:simpleType name="IfcBoolean"> <xs:restriction base="xs:boolean"/> </xs:simpleType>
TYPE IfcBoolean = BOOLEAN;END_TYPE; EXPRESS-G diagram
EXPRESS-G diagram
References: IfcTask IfcDoorType IfcWindowType IfcPavement IfcPavementType IfcDoorStyle IfcWindowStyle IfcAlignment2DCantSegTransition IfcAlignment2DVerSegTransition IfcInclinedReferenceSweptAreaSolid IfcKerb IfcKerbType IfcOpenCrossProfileDef IfcSectionedSurface IfcStructuralAction IfcStructuralResultGroup IfcResourceTime IfcTaskTime IfcAlignment2DSegment IfcAlignment2DVerSegCircularArc IfcAlignment2DVerSegParabolicArc IfcGridAxis IfcHalfSpaceSolid IfcPolygonalFaceSet IfcSectionedSolidHorizontal IfcTriangulatedFaceSet IfcCircularArcSegment2D IfcCompositeCurveSegment IfcCurveBoundedSurface IfcDistanceExpression IfcIndexedPolyCurve IfcRectangularTrimmedSurface IfcTransitionCurveSegment2D IfcTrimmedCurve IfcSimpleValue IfcCurveStyle IfcFillAreaStyle IfcSurfaceTexture IfcTextStyle IfcModulusOfRotationalSubgradeReactionSelect IfcModulusOfSubgradeReactionSelect IfcModulusOfTranslationalSubgradeReactionSelect IfcRotationalStiffnessSelect IfcTranslationalStiffnessSelect IfcWarpingStiffnessSelect IfcEdgeCurve IfcFaceBound IfcFaceSurface IfcOrientedEdge IfcTableRow
Link to this page
EXPRESS-G diagram
References: 
Link to this page