4.8.1.4.5 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:
NOTE This representation type is predominately used for compatibility with previous releases of the standard.
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 tables below shows a recommended list of general usage patterns that users may adopt.
G
IfcElement
IfcElement
GlobalId
[1:1]
OwnerHistory
[0:1]
Name
[0:1]
Description
[0:1]
HasAssignments
[0:?]
Nests
[0:1]
IsNestedBy
[0:?]
HasContext
[0:1]
IsDecomposedBy
[0:?]
Decomposes
[0:1]
HasAssociations
[0:?]
ObjectType
[0:1]
IsDeclaredBy
[0:1]
Declares
[0:?]
IsTypedBy
[0:1]
IsDefinedBy
[0:?]
ObjectPlacement
[0:1]
Representation
[0:1]
ReferencedBy
[0:?]
PositionedRelativeTo
[0:?]
ReferencedInStructures
[0:?]
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:?]
IfcProductDefinitionShape
IfcProductDefinitionShape
Name
[0:1]
Description
[0:1]
Representations
[1:?]
ShapeOfProduct
[1:?]
HasShapeAspects
[0:?]
IfcElement :Representation1->IfcProductDefinitionShape :IfcProductDefinitionShape0
IfcShapeRepresentation
IfcShapeRepresentation
ContextOfItems
[1:1]
Identifier
RepresentationIdentifier
[0:1]
Type
RepresentationType
[0:1]
Items
Items
[1:?]
RepresentationMap
[0:1]
LayerAssignments
[0:?]
OfProductRepresentation
[0:?]
OfShapeAspect
[0:1]
IfcProductDefinitionShape :Representations1->IfcShapeRepresentation :IfcShapeRepresentation0
IfcGeometricRepresentationContext
IfcGeometricRepresentationContext
ContextIdentifier
[0:1]
ContextType
[0:1]
RepresentationsInContext
[0:?]
CoordinateSpaceDimension
[1:1]
Precision
[0:1]
WorldCoordinateSystem
[1:1]
TrueNorth
[0:1]
HasSubContexts
[0:?]
HasCoordinateOperation
[0:1]
IfcShapeRepresentation :ContextOfItems1->IfcGeometricRepresentationContext :IfcGeometricRepresentationContext0
IfcLabel_0
IfcLabel
IfcShapeRepresentation :RepresentationIdentifier1->IfcLabel_0:IfcLabel0
IfcLabel_1
IfcLabel
IfcShapeRepresentation :RepresentationType1->IfcLabel_1:IfcLabel0
IfcBooleanClippingResult_0
IfcBooleanClippingResult
LayerAssignment
[0:1]
StyledByItem
[0:1]
Operator
[1:1]
FirstOperand
[1:1]
SecondOperand
[1:1]
IfcShapeRepresentation :Items1->IfcBooleanClippingResult_0:IfcBooleanClippingResult0
constraint_0
=Body
IfcLabel_0->constraint_0
constraint_1
=Clipping
IfcLabel_1->constraint_1
IfcBooleanOperator
IfcBooleanOperator
IfcBooleanClippingResult_0:Operator1->IfcBooleanOperator :IfcBooleanOperator0
IfcCsgPrimitive3D
IfcCsgPrimitive3D
LayerAssignment
[0:1]
StyledByItem
[0:1]
Position
[1:1]
IfcBooleanClippingResult_0:FirstOperand1->IfcCsgPrimitive3D :IfcCsgPrimitive3D0
IfcSolidModel
IfcSolidModel
LayerAssignment
[0:1]
StyledByItem
[0:1]
IfcBooleanClippingResult_0:FirstOperand1->IfcSolidModel :IfcSolidModel0
IfcBooleanClippingResult_1
IfcBooleanClippingResult
LayerAssignment
[0:1]
StyledByItem
[0:1]
Operator
[1:1]
FirstOperand
[1:1]
SecondOperand
[1:1]
IfcBooleanClippingResult_0:FirstOperand1->IfcBooleanClippingResult_1:IfcBooleanClippingResult0
IfcHalfSpaceSolid
IfcHalfSpaceSolid
LayerAssignment
[0:1]
StyledByItem
[0:1]
BaseSurface
[1:1]
AgreementFlag
[1:1]
IfcBooleanClippingResult_0:SecondOperand1->IfcHalfSpaceSolid :IfcHalfSpaceSolid0
IfcPolygonalBoundedHalfSpace
IfcPolygonalBoundedHalfSpace
LayerAssignment
[0:1]
StyledByItem
[0:1]
BaseSurface
[1:1]
AgreementFlag
[1:1]
Position
[1:1]
PolygonalBoundary
[1:1]
IfcBooleanClippingResult_0:SecondOperand1->IfcPolygonalBoundedHalfSpace :IfcPolygonalBoundedHalfSpace0
IfcPlane
IfcPlane
LayerAssignment
[0:1]
StyledByItem
[0:1]
Position
[1:1]
IfcPolygonalBoundedHalfSpace :BaseSurface1->IfcPlane :IfcPlane0
IfcBoolean
IfcBoolean
IfcPolygonalBoundedHalfSpace :AgreementFlag1->IfcBoolean :IfcBoolean0
IfcAxis2Placement3D
IfcAxis2Placement3D
LayerAssignment
[0:1]
StyledByItem
[0:1]
Location
[1:1]
Axis
[0:1]
RefDirection
[0:1]
IfcPolygonalBoundedHalfSpace :Position1->IfcAxis2Placement3D :IfcAxis2Placement3D0
IfcIndexedPolyCurve
IfcIndexedPolyCurve
LayerAssignment
[0:1]
StyledByItem
[0:1]
Points
[1:1]
Segments
[1:?]
SelfIntersect
[1:1]
IfcPolygonalBoundedHalfSpace :PolygonalBoundary1->IfcIndexedPolyCurve :IfcIndexedPolyCurve0
Figure 4.8.1.4.5.A
General UsageTable 4.8.1.4.5.B