IFC 4.3.2.20260401 (IFC4X3_ADD2) under development

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4.1.8.1.2.3 Type Body CSG Geometry

The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the table below shows a recommended list of general usage patterns that users may adopt.

G <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcTypeProduct.htm'>IfcTypeProduct</a> IfcTypeProduct 1. GlobalId [1:1] 2. OwnerHistory [0:1] 3. Name [0:1] 4. Description [0:1]      HasAssignments [0:?]      Nests [0:1]      IsNestedBy [0:?]      HasContext [0:1]      IsDecomposedBy [0:?]      Decomposes [0:1]      HasAssociations [0:?] 5. ApplicableOccurrence [0:1] 6. HasPropertySets [1:?]      Types [0:1] 7. RepresentationMaps [1:?] 8. Tag [0:1]      ReferencedBy [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentationMap.htm'>IfcRepresentationMap</a> IfcRepresentationMap 1. MappingOrigin [1:1] 2. MappedRepresentation [1:1]      HasShapeAspects [0:?]      MapUsage [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcTypeProduct.htm'>IfcTypeProduct</a>:RepresentationMaps1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentationMap.htm'>IfcRepresentationMap</a>:IfcRepresentationMap0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a> IfcShapeRepresentation 1. ContextOfItems [1:1] 2. RepresentationIdentifier [0:1] RepresentationType 3. RepresentationType [0:1] Geometry 4. Items [1:?]      RepresentationMap [0:1]      LayerAssignments [0:?]      OfProductRepresentation [0:?]      OfShapeAspect [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentationMap.htm'>IfcRepresentationMap</a>:MappedRepresentation1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:IfcShapeRepresentation0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement3D.htm'>IfcAxis2Placement3D</a> IfcAxis2Placement3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. Axis [0:1] 3. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentationMap.htm'>IfcRepresentationMap</a>:MappingOrigin1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement3D.htm'>IfcAxis2Placement3D</a>:IfcAxis2Placement3D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a> IfcAxis2Placement2D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. RefDirection [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRepresentationMap.htm'>IfcRepresentationMap</a>:MappingOrigin1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement2D.htm'>IfcAxis2Placement2D</a>:IfcAxis2Placement2D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGeometricRepresentationContext.htm'>IfcGeometricRepresentationContext</a> IfcGeometricRepresentationContext 1. ContextIdentifier [0:1] 2. ContextType [0:1]      RepresentationsInContext [0:?] 3. CoordinateSpaceDimension [1:1] 4. Precision [0:1] 5. WorldCoordinateSystem [1:1] 6. TrueNorth [0:1]      HasSubContexts [0:?]      HasCoordinateOperation [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:ContextOfItems1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGeometricRepresentationContext.htm'>IfcGeometricRepresentationContext</a>:IfcGeometricRepresentationContext0 IfcLabel_0 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:RepresentationIdentifier1->IfcLabel_0:IfcLabel0 IfcLabel_1 IfcLabel <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:RepresentationType1->IfcLabel_1:IfcLabel0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCsgSolid.htm'>IfcCsgSolid</a> IfcCsgSolid      LayerAssignment [0:1]      StyledByItem [0:1] 1. TreeRootExpression [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCsgSolid.htm'>IfcCsgSolid</a>:IfcCsgSolid0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBlock.htm'>IfcBlock</a> IfcBlock      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. XLength [1:1] 3. YLength [1:1] 4. ZLength [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBlock.htm'>IfcBlock</a>:IfcBlock0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRectangularPyramid.htm'>IfcRectangularPyramid</a> IfcRectangularPyramid      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. XLength [1:1] 3. YLength [1:1] 4. Height [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRectangularPyramid.htm'>IfcRectangularPyramid</a>:IfcRectangularPyramid0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRightCircularCone.htm'>IfcRightCircularCone</a> IfcRightCircularCone      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Height [1:1] 3. BottomRadius [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRightCircularCone.htm'>IfcRightCircularCone</a>:IfcRightCircularCone0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRightCircularCylinder.htm'>IfcRightCircularCylinder</a> IfcRightCircularCylinder      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Height [1:1] 3. Radius [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcRightCircularCylinder.htm'>IfcRightCircularCylinder</a>:IfcRightCircularCylinder0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSphere.htm'>IfcSphere</a> IfcSphere      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] 2. Radius [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSphere.htm'>IfcSphere</a>:IfcSphere0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanResult.htm'>IfcBooleanResult</a> IfcBooleanResult      LayerAssignment [0:1]      StyledByItem [0:1] 1. Operator [1:1] 2. FirstOperand [1:1] 3. SecondOperand [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCsgSolid.htm'>IfcCsgSolid</a>:TreeRootExpression1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanResult.htm'>IfcBooleanResult</a>:IfcBooleanResult0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanOperator.htm'>IfcBooleanOperator</a> IfcBooleanOperator <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanResult.htm'>IfcBooleanResult</a>:Operator1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanOperator.htm'>IfcBooleanOperator</a>:IfcBooleanOperator0 IfcBooleanOperand_0 IfcBooleanOperand <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanResult.htm'>IfcBooleanResult</a>:FirstOperand1->IfcBooleanOperand_0:IfcBooleanOperand0 IfcBooleanOperand_1 IfcBooleanOperand <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanResult.htm'>IfcBooleanResult</a>:SecondOperand1->IfcBooleanOperand_1:IfcBooleanOperand0
Figure 4.1.8.1.2.3.A

General Usage

ApplicableEntity
IfcTypeProduct
Table 4.1.8.1.2.3.B

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