An .entity_opt_stmt.

Generic step, typically used as an initial or second Given statement to select entities.

Examples:

Given an .IfcAlignment.

Given an .IfcRoot. with subtypes

Given an .entity instance.

The last example returns everything in the model.

Usages:

• Given an .IfcAlignment.

  ALB000 Alignment layout - v1:13

• Given an .IfcAlignment.

  ALB002 Alignment layout relationships - v1:15

• Given an .IfcAlignmentHorizontal.

  ALB002 Alignment layout relationships - v1:24

• Given an .IfcAlignmentVertical.

  ALB002 Alignment layout relationships - v1:24

• Given an .IfcAlignmentCant.

  ALB002 Alignment layout relationships - v1:24

• Given an .IfcAlignmentHorizontal.

  ALB002 Alignment layout relationships - v1:38

• Given an .IfcAlignmentVertical.

  ALB002 Alignment layout relationships - v1:38

• Given an .IfcAlignmentCant.

  ALB002 Alignment layout relationships - v1:38

• Given an .IfcAlignment.

  ALB003 Alignment nesting - v1:13

• Given an .IfcAlignment.

  ALB004 Alignment in spatial structure relationships - v1:12

• Given an .IfcReferent.

  ( ⚠ ALB005 Positioning of referents - v1) (disabled):12

• Given an .IfcAlignmentHorizontal.

  ALB010 Alignment nesting referents - v2:13

• Given An .IfcAlignmentVertical.

  ALB012 Alignment vertical segment radius of curvature - v2:11

• Given An .IfcAlignmentHorizontal.

  ALB015 Alignment business logic zero length final segment - v2:11

• Given An .IfcAlignmentVertical.

  ALB015 Alignment business logic zero length final segment - v2:19

• Given An .IfcAlignmentCant.

  ALB015 Alignment business logic zero length final segment - v2:27

• Given An .IfcAlignmentHorizontal.

  ALB022 Alignment agreement on number of segments - v1:13

• Given An .IfcAlignmentVertical.

  ALB022 Alignment agreement on number of segments - v1:17

• Given An .IfcAlignmentCant.

  ALB022 Alignment agreement on number of segments - v1:21

• Given An .IfcAlignment.

  ALB023 Alignment same segment types in business logic and geometry - v2:13

• Given An .IfcAlignmentHorizontal.

  ALB023 Alignment same segment types in business logic and geometry - v2:20

• Given An .IfcAlignmentVertical.

  ALB023 Alignment same segment types in business logic and geometry - v2:27

• Given An .IfcAlignmentCant.

  ALB023 Alignment same segment types in business logic and geometry - v2:34

• Given An .IfcAlignmentSegment.

  ALB023 Alignment same segment types in business logic and geometry - v2:41

• Given An .IfcAlignment.

  ALB030 Alignment local placement - v1:11

• Given an .IfcAlignment.

  ALB031 Alignment layouts default case - v1:13

• Given an .IfcAlignment.

  ALB032 Alignment layouts reusing horizontal - v1:12

• Given an .IfcAlignment.

  ALS000 Alignment geometry - v1:13

• Given An .IfcAlignmentSegment.

  ALS004 Alignment segment shape representation - v2:9

• Given An .IfcAlignment.

  ALS005 Alignment shape representation - v3:10

• Given An .IfcAlignmentHorizontal.

  ALS006 Alignment horizontal shape representation - v1:9

• Given An .IfcAlignmentVertical.

  ALS007 Alignment vertical shape representation - v2:9

• Given An .IfcAlignmentCant.

  ALS008 Alignment cant shape representation - v1:9

• Given An .IfcAlignmentSegment.

  ALS010 Alignment segment shape representation has the correct number of items - v1:11

• Given an .IfcAlignment.

  ALS011 Alignment segment entity type consistency - v3:15

• Given An .IfcAlignment.

  ALS012 Alignment segment start and length attribute types - v1:13

• Given An .IfcAlignment.

  ALS015 Alignment representation zero length final segment - v3:12

• Given An .IfcAlignment.

  ALS016 Alignment horizontal segment geometric continuity - v3:17

• Given An .IfcAlignment.

  ALS017 Alignment vertical segment geometric continuity - v4:15

• Given an .IfcAnnotation.

  ANN000 Annotations - v1:11

• Given an .IfcElement.

  ASM000 Composed elements - v1:13

• Given an .IfcProduct.

  AXG000 Axis Geometry - v1:13

• Given an .IfcProduct.

  BBX000 Bounding box - v1:12

• Given an .IfcProduct.

  BBX001 Bounding box shape representation - v1:9

• Given an .IfcBuiltElement.

  BLT000 Built elements - v1:12

• Given an .IfcBuildingElement.

  BLT000 Built elements - v1:20

• Given an .IfcDoor.

  BLT001 Correct use of operation type attributes for doors - v1:14

• Given an .IfcDoorType.

  BLT001 Correct use of operation type attributes for doors - v1:14

• Given an .IfcDoor.

  BLT001 Correct use of operation type attributes for doors - v1:28

• Given an .IfcWindow.

  BLT002 Correct use of partitioning type attributes for windows - v1:14

• Given an .IfcWindowType.

  BLT002 Correct use of partitioning type attributes for windows - v1:14

• Given an .IfcWindow.

  BLT002 Correct use of partitioning type attributes for windows - v1:28

• Given An .IfcStair.

  BLT003 Stair decomposition - v2:12

• Given An .IfcFace.

  ( ⚠ BRP001 Polyhedral IfcFace boundary no self intersections - v2) (disabled):12

• Given An .IfcConnectedFaceSet.

  BRP002 Single component in connected faceset - v2:10

• Given an .IfcObjectDefinition.

  CLS000 Classification association - v1:13

• Given an .IfcRepresentationItem.

  CTX000 Presentation colours and textures - v2:11

• Given an .IfcObjectDefinition.

  CTX000 Presentation colours and textures - v2:24

• Given an .IfcProduct.

  GDP000 Grid placement - v1:10

• Given An .IfcClosedShell.

  GEM001 Closed shell edge usage - v3:10

• Given An .IfcTriangulatedFaceSet.

  GEM001 Closed shell edge usage - v3:22

• Given An .IfcPolygonalFaceSet.

  GEM001 Closed shell edge usage - v3:22

• Given An .IfcSpace.

  GEM002 Space representation - v2:10

• Given An .IfcSpace.

  GEM002 Space representation - v2:18

• Given An .IfcProduct.

  GEM003 Unique representation identifier - v1:10

• Given An .IfcProduct.

  GEM004 Constraints on representation identifiers - v3:10

• Given An .IfcProduct.

  GEM004 Constraints on representation identifiers - v3:20

• Given An .IfcProduct.

  GEM004 Constraints on representation identifiers - v3:31

• Given An .IfcBuilding.

  ( ⚠ GEM005 Building shape representation - v2) (disabled):11

• Given an .IfcProduct.

  GEM011 Curve segments consistency - v2:14

• Given An .IfcProject.

  GEM051 Presence of geometric context - v2:12

• Given An .IfcContext.

  GEM051 Presence of geometric context - v2:12

• Given An .IfcProject.

  GEM051 Presence of geometric context - v2:27

• Given An .IfcContext.

  GEM051 Presence of geometric context - v2:27

• Given An .IfcGeometricRepresentationSubContext.

  GEM052 Correct geometric subcontexts - v2:20

• Given An .IfcGeometricRepresentationSubContext.

  GEM052 Correct geometric subcontexts - v2:29

• Given An .IfcPolyLoop.

  GEM111 No duplicated points within a polyloop or polyline - v1:12

• Given An .IfcPolyLine.

  GEM111 No duplicated points within a polyloop or polyline - v1:17

• Given An .IfcPolyLine.

  GEM111 No duplicated points within a polyloop or polyline - v1:24

• Given An .IfcPolyline.

  GEM111 No duplicated points within a polyloop or polyline - v1:31

• Given An .IfcIndexedPolyCurve.

  GEM112 No duplicated points within an indexed poly curve - v1:11

• Given An .IfcIndexedPolyCurve.

  GEM113 Indexed poly curve arcs must not be defined using colinear points - v2:9

• Given An .IfcCoordinateReferenceSystem.

  GRF000 Georeferencing - v1:16

• Given An .IfcCoordinateReferenceSystem.

  GRF002 EPSG code in coordinate reference system - v1:12

• Given an .IfcBuilding.

  GRF003 CRS presence with spatial entities - v1:13

• Given an .IfcFacility.

  GRF003 CRS presence with spatial entities - v1:20

• Given An .IfcCoordinateReferenceSystem.

  GRF004 Valid EPSG prefix in coordinate reference system - v1:15

• Given An .IfcProjectedCRS.

  GRF004 Valid EPSG prefix in coordinate reference system - v1:29

• Given An .IfcMapConversion.

  GRF005 CRS unit type differences - v1:15

• Given an .IfcCoordinateReferenceSystem.

  GRF006 WKT specification for missing EPSG - v2:10

• Given an .IfcProjectedCRS.

  GRF007 valid vertical datum crs type - v1:12

• Given an .IfcRigidOperation.

  GRF008 Rigid operation units - v1:11

• Given an .IfcGroup.

  GRP001 Acyclic groups - v1:9

• Given an .IfcBuilding.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcBuildingStorey.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcFillAreaStyleHatching.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcOrganization.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcPerson.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcPile.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcReinforcingElement.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcRelAssigns.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcSite.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcStairFlight.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcSurfaceStyleRendering.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcSurfaceTexture.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcTendon.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcTextureCoordinateGenerator.

  IFC102 Absence of deprecated entities - v5:108

• Given an .IfcDoorLiningProperties.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcDoorPanelProperties.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcFillAreaStyleHatching.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcReinforcingElement.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToActor.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToControl.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToGroup.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToGroupByFactor.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToProcess.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToProduct.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcRelAssignsToResource.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcStairFlight.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcWindowPanelProperties.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcWindowLiningProperties.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcTendon.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcTendonAnchor.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcTendonType.

  IFC102 Absence of deprecated entities - v5:142

• Given an .IfcFillAreaStyleHatching.

  IFC102 Absence of deprecated entities - v5:182

• Given an .IfcBuildingElementProxy.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcFireSuppressionTerminal.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcFireSuppressionTerminalType.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcCableCarrierFitting.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcCableCarrierFittingType.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcGeographicElement.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcGeographicElementType.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcSpace.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcSpaceType.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcWall.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcWallType.

  IFC102 Absence of deprecated entities - v5:201

• Given an .IfcWall.

  IFC102 Absence of deprecated entities - v5:225

• Given an .IfcWallType.

  IFC102 Absence of deprecated entities - v5:225

• Given an .IfcOwnerHistory.

  IFC102 Absence of deprecated entities - v5:239

• Given an .IfcFlowFitting.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowSegment.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowTerminal.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowController.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowMovingDevice.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowStorageDevice.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowTreatmentDevice.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcEnergyConversionDevice.

  IFC102 Absence of deprecated entities - v5:251

• Given an .IfcFlowFitting.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowSegment.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowTerminal.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowController.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowMovingDevice.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowStorageDevice.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcFlowTreatmentDevice.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcEnergyConversionDevice.

  IFC102 Absence of deprecated entities - v5:270

• Given an .IfcProductRepresentation.

  IFC102 Absence of deprecated entities - v5:289

• Given an .IfcRepresentation.

  IFC102 Absence of deprecated entities - v5:289

• Given an .IfcRepresentationContext.

  IFC102 Absence of deprecated entities - v5:289

• Given an .IfcRelAssociates.

  IFC102 Absence of deprecated entities - v5:289

• Given an .IfcShapeRepresentation.

  IFC102 Absence of deprecated entities - v5:304

• Given an .IfcPropertySet.

  IFC102 Absence of deprecated entities - v5:312

• Given an .IfcPropertySet.

  IFC102 Absence of deprecated entities - v5:320

• Given an .IfcPropertySet.

  IFC102 Absence of deprecated entities - v5:328

• Given an .entity instance.

  IFC105 Resource entities need to be referenced by rooted entity - v3:13

• Given an .IfcProduct.

  LAY000 Presentation layer assignment - v1:13

• Given an .IfcProduct.

  LAY000 Presentation layer assignment - v1:23

• Given an .IfcProduct.

  LIP000 Linear Placement - v1:12

• Given An .IfcLinearPlacement.

  LIP002 Linear placement fallback coordinates - v1:10

• Given An .IfcObject.

  LOP000 Local placement - v1:10

• Given an .IfcObjectDefinition.

  MAT000 Materials - v1:13

• Given an .IfcObjectDefinition.

  MAT000 Materials - v1:25

• Given an .IfcShapeRepresentation.

  MPD001 Correct use of RepresentationType and RepresentationIdentifier in the context of IfcMappedItem - v1:10

• Given an .IfcShapeRepresentation.

  MPD001 Correct use of RepresentationType and RepresentationIdentifier in the context of IfcMappedItem - v1:23

• Given An .IfcObject.

  OJP000 Object placement - v1:9

• Given An .IfcElement.

  OJP001 Relative placement for elements aggregated to another element - v3:12

• Given An .IfcProject.

  PJS000 Project - v1:10

• Given an .IfcProject.

  PJS001 Correct conversion based units - v2:14

• Given An .IfcProject.

  PJS002 Correct elements related to project - v2:12

• Given An .IfcRoot.

  PJS003 Globally Unique Identifiers - v1:15

• Given an .IfcDistributionPort.

  POR000 Port connectivity and nesting - v1:12

• Given An .IfcPropertySet.

  PSE001 Standard properties and property sets validation - v3:8

• Given An .IfcPropertySet.

  PSE002 Custom properties and property sets validation - v1:10

• Given an .IfcObject.

  QTY000 Quantities for objects - v1:12

• Given An .IfcElementQuantity.

  QTY001 Standard quantities and quantity sets validation - v1:8

• Given an .IfcSpace.

  SPA000 Spaces information - v1:10

• Given an .IfcSpatialZone.

  SPA000 Spaces information - v1:10

• Given An .IfcSite.

  SPS001 Basic spatial structure for buildings - v2:22

• Given an .IfcBuilding.

  SPS001 Basic spatial structure for buildings - v2:23

• Given An .IfcBuilding.

  SPS001 Basic spatial structure for buildings - v2:30

• Given An .IfcSpatialElement.

  SPS002 Correct spatial breakdown - v3:11

• Given An .IfcProject.

  SPS002 Correct spatial breakdown - v3:18

• Given An .IfcElement.

  SPS003 Correct containment of assemblies - v1:9

• Given An .IfcProduct.

  ( ⚠ SPS004 No combination of containment and positioning - v2) (disabled):11

• Given An .IfcProduct.

  ( ⚠ SPS004 No combination of containment and positioning - v2) (disabled):20

• Given An .IfcElement.

  SPS005 Simultaneous spatial relationships - v2:10

• Given An .IfcElement.

  ( ⚠ SPS006 Elements referenced in Spatial structures - v2) (disabled):11

• Given an .IfcGrid.

  SPS007 Spatial containment - v6:11

• Given an .IfcAnnotation.

  SPS007 Spatial containment - v6:17

• Given an .IfcElement.

  SPS007 Spatial containment - v6:25

• Given an .IfcElement.

  SPS007 Spatial containment - v6:33

• Given An .IfcProduct.

  SPS007 Spatial containment - v6:40

• Given an .IfcBuildingStorey.

  SPS008 Spatial container representations - v1:12

• Given an .IfcSite.

  SPS008 Spatial container representations - v1:20

• Given an .IfcBridge.

  SPS008 Spatial container representations - v1:28

• Given an .IfcMarineFacility.

  SPS008 Spatial container representations - v1:28

• Given an .IfcRailway.

  SPS008 Spatial container representations - v1:28

• Given an .IfcRoad.

  SPS008 Spatial container representations - v1:28

• Given An .IfcArbitraryClosedProfileDef.

  SWE001 Arbitrary profile boundary no self intersections - v4:11

• Given An .IfcArbitraryClosedProfileDef.

  SWE001 Arbitrary profile boundary no self intersections - v4:18

• Given An .IfcExtrudedAreaSolidTapered.

  SWE002 Mirroring within IfcDerivedProfileDef shall not be used - v2:21

• Given An .IfcRevolvedAreaSolidTapered.

  SWE002 Mirroring within IfcDerivedProfileDef shall not be used - v2:21

• Given an .IfcCableSegment.

  ( ⚠ SYS001 Cable signal flow - v2) (disabled):11

• Given An .IfcPolygonalFaceSet.

  ( ⚠ TAS001 Polygonal face boundary no self intersections - v2) (disabled):11

• Given An .IfcPolygonalFaceSet.

  ( ⚠ TAS001 Polygonal face boundary no self intersections - v2) (disabled):18

• Given an .IfcRoot.

  VER000 Versioning and revision control - v1:12

• Given an .IfcVirtualElement.

  VRT000 Virtual elements - v1:11