IFC 4.3.0.1 (IFC4X3) development

4.9.1.3.5 Type Body Tessellated 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 tables below shows a recommended list of general usage patterns that users may adopt.

G IfcElementType IfcElementType 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:?] 9. ElementType [0:1] IfcRepresentationMap IfcRepresentationMap 1. MappingOrigin [1:1] 2. MappedRepresentation [1:1]      HasShapeAspects [0:?]      MapUsage [0:?] IfcElementType:RepresentationMaps1->IfcRepresentationMap:IfcRepresentationMap0 IfcShapeRepresentation IfcShapeRepresentation 1. ContextOfItems [1:1] 2. RepresentationIdentifier [0:1] 3. RepresentationType [0:1] Geometry 4. Items [1:?]      RepresentationMap [0:1]      LayerAssignments [0:?]      OfProductRepresentation [0:?]      OfShapeAspect [0:1] IfcRepresentationMap:MappedRepresentation1->IfcShapeRepresentation:IfcShapeRepresentation0 IfcAxis2Placement3D IfcAxis2Placement3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. Axis [0:1] 3. RefDirection [0:1] IfcRepresentationMap:MappingOrigin1->IfcAxis2Placement3D:IfcAxis2Placement3D0 IfcAxis2Placement2D IfcAxis2Placement2D      LayerAssignment [0:1]      StyledByItem [0:1] 1. Location [1:1] 2. RefDirection [0:1] IfcRepresentationMap:MappingOrigin1->IfcAxis2Placement2D:IfcAxis2Placement2D0 IfcGeometricRepresentationContext 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] IfcShapeRepresentation:ContextOfItems1->IfcGeometricRepresentationContext:IfcGeometricRepresentationContext0 IfcLabel_0 IfcLabel IfcShapeRepresentation:RepresentationIdentifier1->IfcLabel_0:IfcLabel0 IfcLabel_1 IfcLabel IfcShapeRepresentation:RepresentationType1->IfcLabel_1:IfcLabel0 IfcTriangulatedFaceSet IfcTriangulatedFaceSet      LayerAssignment [0:1]      StyledByItem [0:1] 1. Coordinates [1:1]      HasColours [0:1]      HasTextures [0:?] 2. Normals [1:?] 3. Closed [0:1] 4. CoordIndex [1:?] 5. PnIndex [1:?] IfcShapeRepresentation:Items1->IfcTriangulatedFaceSet:IfcTriangulatedFaceSet0 constraint_0 ='Surface' IfcLabel_0->constraint_0 constraint_1 ='Tessellation' IfcLabel_1->constraint_1 IfcCartesianPointList3D IfcCartesianPointList3D      LayerAssignment [0:1]      StyledByItem [0:1] 1. CoordList [1:?] 2. TagList [1:?] IfcTriangulatedFaceSet:Coordinates1->IfcCartesianPointList3D:IfcCartesianPointList3D0 IfcParameterValue IfcParameterValue IfcTriangulatedFaceSet:Normals1->IfcParameterValue:IfcParameterValue0 IfcIndexedColourMap IfcIndexedColourMap 1. MappedTo [1:1] 2. Opacity [0:1] 3. Colours [1:1] 4. ColourIndex [1:?] IfcTriangulatedFaceSet:HasColours1->IfcIndexedColourMap:MappedTo0 IfcIndexedTriangleTextureMap IfcIndexedTriangleTextureMap 1. Maps [1:?] 2. MappedTo [1:1] 3. TexCoords [1:1] 4. TexCoordIndex [1:?] IfcTriangulatedFaceSet:HasTextures1->IfcIndexedTriangleTextureMap:MappedTo0 IfcStyledItem IfcStyledItem      LayerAssignment [0:1]      StyledByItem [0:1] 1. Item [0:1] 2. Styles [1:?] 3. Name [0:1] IfcTriangulatedFaceSet:StyledByItem1->IfcStyledItem:Item0 IfcLengthMeasure IfcLengthMeasure IfcCartesianPointList3D:CoordList1->IfcLengthMeasure:IfcLengthMeasure0 IfcColourRgbList IfcColourRgbList 1. ColourList [1:?] IfcIndexedColourMap:Colours1->IfcColourRgbList:IfcColourRgbList0 IfcImageTexture IfcImageTexture 1. RepeatS [1:1] 2. RepeatT [1:1] 3. Mode [0:1] 4. TextureTransform [0:1] 5. Parameter [1:?]      IsMappedBy [0:?]      UsedInStyles [0:?] 6. URLReference [1:1] IfcIndexedTriangleTextureMap:Maps1->IfcImageTexture:IfcImageTexture0 IfcSurfaceStyle IfcSurfaceStyle 1. Name [0:1] 2. Side [1:1] 3. Styles [1:5] IfcStyledItem:Styles1->IfcSurfaceStyle:IfcSurfaceStyle0 IfcNormalisedRatioMeasure IfcNormalisedRatioMeasure IfcColourRgbList:ColourList1->IfcNormalisedRatioMeasure:IfcNormalisedRatioMeasure0 Image_Texture Image Texture IfcImageTexture->Image_Texture Surface_Color_Style Surface Color Style IfcSurfaceStyle->Surface_Color_Style
Figure 4.9.1.3.5.A

General Usage

ApplicableEntity
IfcElementType
Table 4.9.1.3.5.B

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