4.8.2.12 Survey Points Geometry

Elements may provide a 'SurveyPoints' representation for defining a contour such as for IfcSite. It contains the survey points as a set of Cartesian points and optionally breaklines.

The representation identifier and type and the only allowed single representation item of the 'SurveyPoints' representation are:

Figure 92 illustrates an instance diagram.

Survey Points GeometryIfcSiteIfcProductDefinitionShapeIfcShapeRepresentationIfcGeometricRepresentationContextIfcLabelIfcLabelIfcGeometricCurveSetIfcCartesianPointIfcPolyline

Figure 92 — Survey Points Geometry

mvdXML Specification
<?xml version="1.0"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="2a90f52f-7961-4dbd-8560-546e2d0b73bb" name="Survey Points Geometry" status="sample" applicableSchema="IFC4" applicableEntity="IfcSite">
  <Rules>
    <AttributeRule AttributeName="Representation">
      <EntityRules>
        <EntityRule EntityName="IfcProductDefinitionShape">
          <AttributeRules>
            <AttributeRule AttributeName="Representations">
              <EntityRules>
                <EntityRule EntityName="IfcShapeRepresentation">
                  <AttributeRules>
                    <AttributeRule AttributeName="ContextOfItems">
                      <EntityRules>
                        <EntityRule EntityName="IfcGeometricRepresentationContext" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule RuleID="Identifier" AttributeName="RepresentationIdentifier">
                      <EntityRules>
                        <EntityRule EntityName="IfcLabel">
                          <AttributeRules>
                            <AttributeRule Description="Value=SurveyPoints" AttributeName="Value=SurveyPoints" />
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule RuleID="Type" AttributeName="RepresentationType">
                      <EntityRules>
                        <EntityRule EntityName="IfcLabel">
                          <AttributeRules>
                            <AttributeRule Description="Value=GeometricCurveSet" AttributeName="Value=GeometricCurveSet" />
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule RuleID="Items" AttributeName="Items">
                      <EntityRules>
                        <EntityRule EntityName="IfcGeometricCurveSet">
                          <AttributeRules>
                            <AttributeRule AttributeName="Elements">
                              <EntityRules>
                                <EntityRule EntityName="IfcCartesianPoint" />
                                <EntityRule EntityName="IfcPolyline" />
                              </EntityRules>
                            </AttributeRule>
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                  </AttributeRules>
                </EntityRule>
              </EntityRules>
            </AttributeRule>
            <AttributeRule AttributeName="Name" />
            <AttributeRule AttributeName="Description" />
          </AttributeRules>
        </EntityRule>
      </EntityRules>
    </AttributeRule>
  </Rules>
</ConceptTemplate>

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