4.11.3 Geometry

Geometric items are used to describe shape representations of products.

mvdXML Specification
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    <ConceptTemplate uuid="93164c8d-4929-4c01-b9b3-f2ec2fdb6da3" name="Solid Model Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcSolidModel">
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        <ConceptTemplate uuid="bb55a495-9092-4230-afc6-fb0360d7d452" name="Faceted Brep Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcFacetedBrep">
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              <EntityRules>
                <EntityRule EntityName="IfcClosedShell">
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                        <EntityRule EntityName="IfcFaceSurface">
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                                <EntityRule EntityName="IfcFaceBound">
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                                        <EntityRule EntityName="IfcPolyLoop">
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                                            <AttributeRule AttributeName="Polygon">
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                                                <EntityRule EntityName="IfcCartesianPoint" />
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                                    <AttributeRule AttributeName="Orientation">
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                                <EntityRule EntityName="IfcFaceOuterBound">
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                                        <EntityRule EntityName="IfcPolyLoop">
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                                            <AttributeRule AttributeName="Polygon">
                                              <EntityRules>
                                                <EntityRule EntityName="IfcCartesianPoint" />
                                              </EntityRules>
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                                    <AttributeRule AttributeName="Orientation">
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        <ConceptTemplate uuid="3b6904cd-5852-4d29-b39e-64b326a74db0" name="Advanced Brep Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcAdvancedBrep">
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                        <EntityRule EntityName="IfcAdvancedFace">
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                                <EntityRule EntityName="IfcFaceOuterBound">
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                                        <EntityRule EntityName="IfcEdgeLoop">
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                                            <AttributeRule AttributeName="EdgeList">
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                                                <EntityRule EntityName="IfcOrientedEdge">
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                                                    <AttributeRule AttributeName="EdgeElement">
                                                      <EntityRules>
                                                        <EntityRule EntityName="IfcEdgeCurve">
                                                          <AttributeRules>
                                                            <AttributeRule AttributeName="EdgeStart">
                                                              <EntityRules>
                                                                <EntityRule EntityName="IfcVertexPoint" />
                                                              </EntityRules>
                                                            </AttributeRule>
                                                            <AttributeRule AttributeName="EdgeEnd">
                                                              <EntityRules>
                                                                <EntityRule EntityName="IfcVertexPoint" />
                                                              </EntityRules>
                                                            </AttributeRule>
                                                            <AttributeRule AttributeName="EdgeGeometry">
                                                              <EntityRules>
                                                                <EntityRule EntityName="IfcRationalBSplineCurveWithKnots">
                                                                  <AttributeRules>
                                                                    <AttributeRule AttributeName="Degree">
                                                                      <EntityRules>
                                                                        <EntityRule EntityName="IfcInteger" />
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                                                                    <AttributeRule AttributeName="ControlPointsList">
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                                                                        <EntityRule EntityName="IfcCartesianPoint" />
                                                                      </EntityRules>
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                                                                    <AttributeRule AttributeName="CurveForm">
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                                                                        <EntityRule EntityName="IfcBSplineCurveForm" />
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                                                                    <AttributeRule AttributeName="ClosedCurve">
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                                                                        <EntityRule EntityName="IfcLogical" />
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                                                                        <EntityRule EntityName="IfcLogical" />
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                                                                    <AttributeRule AttributeName="KnotMultiplicities">
                                                                      <EntityRules>
                                                                        <EntityRule EntityName="IfcInteger" />
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                                                                    <AttributeRule AttributeName="Knots">
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                                                                        <EntityRule EntityName="IfcParameterValue" />
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                                                                    <AttributeRule AttributeName="KnotSpec">
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                                                                        <EntityRule EntityName="IfcKnotType" />
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                                                                    <AttributeRule AttributeName="WeightsData">
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                                                                        <EntityRule EntityName="IfcReal" />
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                                                                    </AttributeRule>
                                                                  </AttributeRules>
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                                                                <EntityRule EntityName="IfcPolyline">
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                                                                    <AttributeRule AttributeName="Points">
                                                                      <EntityRules>
                                                                        <EntityRule EntityName="IfcCartesianPoint" />
                                                                      </EntityRules>
                                                                    </AttributeRule>
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                                                            <AttributeRule AttributeName="SameSense">
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                                    <AttributeRule AttributeName="UDegree">
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                                        <EntityRule EntityName="IfcInteger" />
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                                        <EntityRule EntityName="IfcCartesianPoint" />
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                                        <EntityRule EntityName="IfcLogical" />
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                                        <EntityRule EntityName="IfcInteger" />
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                                    <AttributeRule AttributeName="VMultiplicities">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcInteger" />
                                      </EntityRules>
                                    </AttributeRule>
                                    <AttributeRule AttributeName="UKnots">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcParameterValue" />
                                      </EntityRules>
                                    </AttributeRule>
                                    <AttributeRule AttributeName="VKnots">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcParameterValue" />
                                      </EntityRules>
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                                    <AttributeRule AttributeName="KnotSpec">
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                                        <EntityRule EntityName="IfcKnotType" />
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                                    <AttributeRule AttributeName="WeightsData">
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                                        <EntityRule EntityName="IfcReal" />
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                                </EntityRule>
                                <EntityRule EntityName="IfcCylindricalSurface">
                                  <AttributeRules>
                                    <AttributeRule AttributeName="Position">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcAxis2Placement3D" />
                                      </EntityRules>
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                                    <AttributeRule AttributeName="Radius">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
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                                    </AttributeRule>
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                                </EntityRule>
                                <EntityRule EntityName="IfcSphericalSurface" />
                                <EntityRule EntityName="IfcToroidalSurface">
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                                    <AttributeRule AttributeName="Position">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcAxis2Placement3D" />
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                                    <AttributeRule AttributeName="MajorRadius">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
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                                    <AttributeRule AttributeName="MinorRadius">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
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                                    </AttributeRule>
                                  </AttributeRules>
                                </EntityRule>
                                <EntityRule EntityName="IfcPlane">
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                                    <AttributeRule AttributeName="Position">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcAxis2Placement3D" />
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                                    </AttributeRule>
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    <ConceptTemplate uuid="66059531-56c6-4010-9065-c8cbd379767b" name="Surface Model Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcGeometricRepresentationItem">
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        <ConceptTemplate uuid="a46de0c5-20f2-4f88-b037-5fb255182827" name="Tessellated Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcTessellatedFaceSet">
          <SubTemplates>
            <ConceptTemplate uuid="677bd4ce-e38b-4581-b40d-c9eaa2416971" name="Triangulated Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcTriangulatedFaceSet">
              <Rules>
                <AttributeRule AttributeName="Coordinates">
                  <EntityRules>
                    <EntityRule EntityName="IfcCartesianPointList3D">
                      <AttributeRules>
                        <AttributeRule AttributeName="CoordList">
                          <EntityRules>
                            <EntityRule EntityName="IfcLengthMeasure" />
                          </EntityRules>
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                <AttributeRule AttributeName="Normals">
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                    <EntityRule EntityName="IfcParameterValue" />
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                    <EntityRule EntityName="IfcBoolean" />
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                <AttributeRule AttributeName="CoordIndex">
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                    <EntityRule EntityName="IfcPositiveInteger" />
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                <AttributeRule AttributeName="PnIndex">
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                    <EntityRule EntityName="IfcPositiveInteger" />
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                <AttributeRule AttributeName="HasColours">
                  <EntityRules>
                    <EntityRule EntityName="IfcIndexedColourMap">
                      <AttributeRules>
                        <AttributeRule AttributeName="Colours">
                          <EntityRules>
                            <EntityRule EntityName="IfcColourRgbList">
                              <AttributeRules>
                                <AttributeRule AttributeName="ColourList">
                                  <EntityRules>
                                    <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                                  </EntityRules>
                                </AttributeRule>
                              </AttributeRules>
                            </EntityRule>
                          </EntityRules>
                        </AttributeRule>
                        <AttributeRule AttributeName="ColourIndex">
                          <EntityRules>
                            <EntityRule EntityName="IfcPositiveInteger" />
                          </EntityRules>
                        </AttributeRule>
                        <AttributeRule AttributeName="Opacity">
                          <EntityRules>
                            <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                          </EntityRules>
                        </AttributeRule>
                      </AttributeRules>
                    </EntityRule>
                  </EntityRules>
                </AttributeRule>
              </Rules>
              <SubTemplates>
                <ConceptTemplate uuid="8a96e670-c72c-4dde-933a-b8e9bffd6983" name="Triangulated Geometry With Textures" status="sample" applicableSchema="IFC4" applicableEntity="IfcTriangulatedFaceSet">
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                    <AttributeRule AttributeName="Coordinates">
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                        <EntityRule EntityName="IfcCartesianPointList3D">
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                            <AttributeRule AttributeName="CoordList">
                              <EntityRules>
                                <EntityRule EntityName="IfcLengthMeasure" />
                              </EntityRules>
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                          </AttributeRules>
                        </EntityRule>
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                    <AttributeRule AttributeName="Normals">
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                        <EntityRule EntityName="IfcParameterValue" />
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                        <EntityRule EntityName="IfcBoolean" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="CoordIndex">
                      <EntityRules>
                        <EntityRule EntityName="IfcPositiveInteger" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="HasColours">
                      <EntityRules>
                        <EntityRule EntityName="IfcIndexedColourMap">
                          <AttributeRules>
                            <AttributeRule AttributeName="Colours">
                              <EntityRules>
                                <EntityRule EntityName="IfcColourRgbList">
                                  <AttributeRules>
                                    <AttributeRule AttributeName="ColourList">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                                      </EntityRules>
                                    </AttributeRule>
                                  </AttributeRules>
                                </EntityRule>
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="ColourIndex">
                              <EntityRules>
                                <EntityRule EntityName="IfcPositiveInteger" />
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="Opacity">
                              <EntityRules>
                                <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                                <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                              </EntityRules>
                            </AttributeRule>
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="HasTextures">
                      <EntityRules>
                        <EntityRule EntityName="IfcIndexedTriangleTextureMap">
                          <References>
                            <Template ref="36f5b37a-5390-4743-a8a5-2b29fa5d50bd" />
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                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="PnIndex">
                      <EntityRules>
                        <EntityRule EntityName="IfcPositiveInteger" />
                      </EntityRules>
                    </AttributeRule>
                  </Rules>
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              </SubTemplates>
            </ConceptTemplate>
            <ConceptTemplate uuid="72c0b316-6b48-478d-91fa-6e4b5a781b07" name="Polygonal Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcPolygonalFaceSet">
              <Rules>
                <AttributeRule AttributeName="Coordinates">
                  <EntityRules>
                    <EntityRule EntityName="IfcCartesianPointList3D">
                      <AttributeRules>
                        <AttributeRule AttributeName="CoordList">
                          <EntityRules>
                            <EntityRule EntityName="IfcLengthMeasure" />
                          </EntityRules>
                        </AttributeRule>
                      </AttributeRules>
                    </EntityRule>
                  </EntityRules>
                </AttributeRule>
                <AttributeRule AttributeName="Closed">
                  <EntityRules>
                    <EntityRule EntityName="IfcBoolean" />
                  </EntityRules>
                </AttributeRule>
                <AttributeRule AttributeName="Faces">
                  <EntityRules>
                    <EntityRule EntityName="IfcIndexedPolygonalFace">
                      <AttributeRules>
                        <AttributeRule AttributeName="CoordIndex">
                          <EntityRules>
                            <EntityRule EntityName="IfcPositiveInteger" />
                          </EntityRules>
                        </AttributeRule>
                      </AttributeRules>
                    </EntityRule>
                    <EntityRule EntityName="IfcIndexedPolygonalFaceWithVoids">
                      <AttributeRules>
                        <AttributeRule AttributeName="CoordIndex">
                          <EntityRules>
                            <EntityRule EntityName="IfcPositiveInteger" />
                          </EntityRules>
                        </AttributeRule>
                        <AttributeRule AttributeName="InnerCoordIndices">
                          <EntityRules>
                            <EntityRule EntityName="IfcPositiveInteger" />
                          </EntityRules>
                        </AttributeRule>
                      </AttributeRules>
                    </EntityRule>
                  </EntityRules>
                </AttributeRule>
                <AttributeRule AttributeName="PnIndex">
                  <EntityRules>
                    <EntityRule EntityName="IfcPositiveInteger" />
                  </EntityRules>
                </AttributeRule>
                <AttributeRule AttributeName="HasColours">
                  <EntityRules>
                    <EntityRule EntityName="IfcIndexedColourMap">
                      <AttributeRules>
                        <AttributeRule AttributeName="Opacity">
                          <EntityRules>
                            <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                          </EntityRules>
                        </AttributeRule>
                        <AttributeRule AttributeName="Colours">
                          <EntityRules>
                            <EntityRule EntityName="IfcColourRgbList">
                              <AttributeRules>
                                <AttributeRule AttributeName="ColourList">
                                  <EntityRules>
                                    <EntityRule EntityName="IfcNormalisedRatioMeasure" />
                                  </EntityRules>
                                </AttributeRule>
                              </AttributeRules>
                            </EntityRule>
                          </EntityRules>
                        </AttributeRule>
                        <AttributeRule AttributeName="ColourIndex">
                          <EntityRules>
                            <EntityRule EntityName="IfcPositiveInteger" />
                          </EntityRules>
                        </AttributeRule>
                      </AttributeRules>
                    </EntityRule>
                  </EntityRules>
                </AttributeRule>
              </Rules>
            </ConceptTemplate>
          </SubTemplates>
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      </SubTemplates>
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