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4.1.7.1.4.5 Body Clipping Geometry

The Body Clipping Geometry is the representation of the 3D shape of a product by using Constructive Solid Geometry models with difference operations involving half space solids only.

The following attribute values for the IfcShapeRepresentation holding this geometric representation shall be used:

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/IfcElement.htm'>IfcElement</a> IfcElement 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. ObjectType [0:1]      IsDeclaredBy [0:1]      Declares [0:?]      IsTypedBy [0:1]      IsDefinedBy [0:?] 6. ObjectPlacement [0:1] 7. Representation [0:1]      ReferencedBy [0:?]      PositionedRelativeTo [0:?]      ReferencedInStructures [0:?] 8. Tag [0:1]      FillsVoids [0:1]      ConnectedTo [0:?]      IsInterferedByElements [0:?]      InterferesElements [0:?]      HasProjections [0:?]      HasOpenings [0:?]      IsConnectionRealization [0:?]      ProvidesBoundaries [0:?]      ConnectedFrom [0:?]      ContainedInStructure [0:1]      HasCoverings [0:?]      HasSurfaceFeatures [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProductDefinitionShape.htm'>IfcProductDefinitionShape</a> IfcProductDefinitionShape 1. Name [0:1] 2. Description [0:1] 3. Representations [1:?]      ShapeOfProduct [1:?]      HasShapeAspects [0:?] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcElement.htm'>IfcElement</a>:Representation1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProductDefinitionShape.htm'>IfcProductDefinitionShape</a>:IfcProductDefinitionShape0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a> IfcShapeRepresentation 1. ContextOfItems [1:1] Identifier 2. RepresentationIdentifier [0:1] Type 3. RepresentationType [0:1] Items 4. Items [1:?]      RepresentationMap [0:1]      LayerAssignments [0:?]      OfProductRepresentation [0:?]      OfShapeAspect [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcProductDefinitionShape.htm'>IfcProductDefinitionShape</a>:Representations1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:IfcShapeRepresentation0 <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 IfcBooleanClippingResult_0 IfcBooleanClippingResult      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/IfcShapeRepresentation.htm'>IfcShapeRepresentation</a>:Items1->IfcBooleanClippingResult_0:IfcBooleanClippingResult0 constraint_0 =Body IfcLabel_0->constraint_0 constraint_1 =Clipping IfcLabel_1->constraint_1 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanOperator.htm'>IfcBooleanOperator</a> IfcBooleanOperator IfcBooleanClippingResult_0:Operator1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBooleanOperator.htm'>IfcBooleanOperator</a>:IfcBooleanOperator0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCsgPrimitive3D.htm'>IfcCsgPrimitive3D</a> IfcCsgPrimitive3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] IfcBooleanClippingResult_0:FirstOperand1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcCsgPrimitive3D.htm'>IfcCsgPrimitive3D</a>:IfcCsgPrimitive3D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSolidModel.htm'>IfcSolidModel</a> IfcSolidModel      LayerAssignment [0:1]      StyledByItem [0:1] IfcBooleanClippingResult_0:FirstOperand1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcSolidModel.htm'>IfcSolidModel</a>:IfcSolidModel0 IfcBooleanClippingResult_1 IfcBooleanClippingResult      LayerAssignment [0:1]      StyledByItem [0:1] 1. Operator [1:1] 2. FirstOperand [1:1] 3. SecondOperand [1:1] IfcBooleanClippingResult_0:FirstOperand1->IfcBooleanClippingResult_1:IfcBooleanClippingResult0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcHalfSpaceSolid.htm'>IfcHalfSpaceSolid</a> IfcHalfSpaceSolid      LayerAssignment [0:1]      StyledByItem [0:1] 1. BaseSurface [1:1] 2. AgreementFlag [1:1] IfcBooleanClippingResult_0:SecondOperand1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcHalfSpaceSolid.htm'>IfcHalfSpaceSolid</a>:IfcHalfSpaceSolid0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a> IfcPolygonalBoundedHalfSpace      LayerAssignment [0:1]      StyledByItem [0:1] 1. BaseSurface [1:1] 2. AgreementFlag [1:1] 3. Position [1:1] 4. PolygonalBoundary [1:1] IfcBooleanClippingResult_0:SecondOperand1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a>:IfcPolygonalBoundedHalfSpace0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlane.htm'>IfcPlane</a> IfcPlane      LayerAssignment [0:1]      StyledByItem [0:1] 1. Position [1:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a>:BaseSurface1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPlane.htm'>IfcPlane</a>:IfcPlane0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBoolean.htm'>IfcBoolean</a> IfcBoolean <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a>:AgreementFlag1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBoolean.htm'>IfcBoolean</a>:IfcBoolean0 <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/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a>:Position1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcAxis2Placement3D.htm'>IfcAxis2Placement3D</a>:IfcAxis2Placement3D0 <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a> IfcIndexedPolyCurve      LayerAssignment [0:1]      StyledByItem [0:1] 1. Points [1:1] 2. Segments [1:?] 3. SelfIntersect [0:1] <a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcPolygonalBoundedHalfSpace.htm'>IfcPolygonalBoundedHalfSpace</a>:PolygonalBoundary1-><a href='/IFC/RELEASE/IFC4x3/HTML/lexical/IfcIndexedPolyCurve.htm'>IfcIndexedPolyCurve</a>:IfcIndexedPolyCurve0
Figure 4.1.7.1.4.5.A

General Usage

ApplicableEntity
IfcElement
Table 4.1.7.1.4.5.B

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