IfcBooleanOperand

Natural language names
Boolescher Operand
Boolean Operand
Opérande booléen
Change log
ItemSPFXMLChangeDescription
IFC4 Addendum 2 4.0.2.0
    IfcBooleanOperand
      IfcTessellatedFaceSetADDED
Semantic definitions at the type
Type definition

Select type including all geometric representation items which may participate in a Boolean operation to form a CSG solid. It includes solid models, half space solids and CSG primitives. Boolean results can also be used as operands thus enabling nested Boolean operations.

NOTE  Definition from ISO 10303-42:
This select type identifies all those types of entities which may participate in a boolean operation to form a CSG solid.

NOTE  Corresponding STEP type boolean_operand defined in ISO 10303-42.

HISTORY  New type in IFC1.5.1.

IFC4 CHANGE  The item IfcTessellatedFaceSet has been added to the select.

Select definition
TypeDescription
IfcSolidModel
IfcHalfSpaceSolid
IfcBooleanResult
IfcCsgPrimitive3D
IfcTessellatedFaceSet
Formal representations
XML Specification
 <xs:group name="IfcBooleanOperand">
  <xs:choice>
   <xs:element ref="ifc:IfcBooleanResult"/>
   <xs:element ref="ifc:IfcCsgPrimitive3D"/>
   <xs:element ref="ifc:IfcHalfSpaceSolid"/>
   <xs:element ref="ifc:IfcSolidModel"/>
   <xs:element ref="ifc:IfcTessellatedFaceSet"/>
  </xs:choice>
 </xs:group>
EXPRESS Specification

References  References: IfcBooleanResult

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