IFC building model
Schema: "IFC4"
Description: "ViewDefinition[DesignTransferView]"
File name: "_test_simple.ifc"
Time stamp: "2026-02-23T23:28:33+00:00"
Preprocessor: "IfcOpenShell 0.0.0"
Originating system: "Bonsai 0.0.0"
Authorization: "Nobody"

Units
  VOLUMEUNIT: CUBIC_METRE
  LENGTHUNIT: METRE
  AREAUNIT: SQUARE_METRE

Spatial structure
IFCPROJECT "My Project"
  IFCSITE "Cube" | latitude 53° 23′ 0″ | longitude 1° 28′ 0″ | elevation above sea level 75.
    IFCBUILDING "Cube"
      contains 1 element
        1 x IFCANNOTATION | object type "USAGE" | names: "living"
      IFCBUILDINGSTOREY "0" | long name "Storey 0" | elevation 0. | description "Storey 0"
        contains 6 elements
          6 x IFCELEMENTASSEMBLY | names: "exterior", "ground beam", "living-floor" | parts: 4 IFCFOOTING, 4 IFCWALL, 1 IFCSLAB
        IFCSPACE "living-space/0" | INTERNAL
          contains 12 elements
            1 x IFCCOVERING | type IFCCOVERINGTYPE "living-floor" | names: "living-floor/0" | material: layers "default/living-floor" ("Carpet" 0.01) | property sets: EPset_Topology
            4 x IFCWINDOW | type IFCWINDOWTYPE "sash_big_taller" | names: "living outside window" | material: "Timber" | property sets: EPset_Topology
            5 x IFCWINDOW | type IFCWINDOWTYPE "sash_big" | names: "living outside window" | material: "Timber" | property sets: EPset_Topology
            2 x IFCWINDOW | type IFCWINDOWTYPE "sash_tall_arched" | names: "living outside window" | material: "Timber" | property sets: EPset_Topology
      IFCBUILDINGSTOREY "1" | long name "Storey 1" | elevation 3. | description "Storey 1"
        contains 7 elements
          2 x IFCCOVERING | type IFCCOVERINGTYPE "eaves_tiles" | names: "eaves tiles" | material: profiles ("Tiles")
          2 x IFCPIPESEGMENT | type IFCPIPESEGMENTTYPE "eaves_gutter" | names: "eaves gutter" | material: profiles ("Wood")
          2 x IFCCOVERING | type IFCCOVERINGTYPE "eaves_corona" | names: "eaves corona" | material: profiles ("Masonry")
          1 x IFCELEMENTASSEMBLY | names: "pitched-roof" | parts: 2 IFCROOF
  IFCSITE "My Site"
    IFCBUILDING "My Building"
      IFCBUILDINGSTOREY "My Storey"

Types
  IFCCOVERINGTYPE "living-floor" | FLOORING | 1 occurrence | material: layers "default/living-floor" ("Carpet" 0.01)
  IFCWINDOWTYPE "sash_big_taller" | WINDOW | SINGLE_PANEL | 4 occurrences | material: "Timber" | property sets: EPset_Opening, Pset_WindowCommon
  IFCWINDOWTYPE "sash_big" | WINDOW | SINGLE_PANEL | 5 occurrences | material: "Timber" | property sets: EPset_Opening, Pset_WindowCommon
  IFCWINDOWTYPE "sash_tall_arched" | WINDOW | DOUBLE_PANEL_HORIZONTAL | 2 occurrences | material: "Timber" | property sets: EPset_Opening, Pset_WindowCommon
  IFCCOVERINGTYPE "eaves_tiles" | 2 occurrences | material: profiles ("Tiles")
  IFCPIPESEGMENTTYPE "eaves_gutter" | 2 occurrences | material: profiles ("Wood")
  IFCCOVERINGTYPE "eaves_corona" | 2 occurrences | material: profiles ("Masonry")

Property sets
  EPset_Topology | properties | on 6 objects (3 IFCWINDOW, 1 IFCSTRUCTURALCURVEMEMBER, 1 IFCSTRUCTURALSURFACEMEMBER, 1 IFCWALL)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "0" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 6 objects (3 IFCWINDOW, 1 IFCSTRUCTURALCURVEMEMBER, 1 IFCSTRUCTURALSURFACEMEMBER, 1 IFCWALL)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "6" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 6 objects (3 IFCWINDOW, 1 IFCSTRUCTURALCURVEMEMBER, 1 IFCSTRUCTURALSURFACEMEMBER, 1 IFCWALL)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "4" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 5 objects (2 IFCWINDOW, 1 IFCSTRUCTURALCURVEMEMBER, 1 IFCSTRUCTURALSURFACEMEMBER, 1 IFCWALL)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "1" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 2 objects (1 IFCSLAB, 1 IFCSTRUCTURALSURFACEMEMBER)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "2" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 2 objects (1 IFCROOF, 1 IFCSTRUCTURALSURFACEMEMBER)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "3" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 2 objects (1 IFCROOF, 1 IFCSTRUCTURALSURFACEMEMBER)
    BackCellIndex = "0" (IFCLABEL)
    FaceIndex = "5" (IFCLABEL)
    StyleName = "default" (IFCLABEL)
  EPset_Topology | properties | on 1 object (1 IFCSPACE)
    CellIndex = "0" (IFCLABEL)
    Usage = "living" (IFCLABEL)
  EPset_Topology: 1 more content on 1 objects not shown
  Pset_SpaceOccupancyRequirements | properties | on 1 object (1 IFCSPACE)
    OccupancyType = "living" (IFCLABEL)
  EPset_Pattern | properties | on 1 object (1 IFCSPACE)
    Crinkliness = 2.5 (IFCREAL)
  Qto_SpaceBaseQuantities | properties | on 1 object (1 IFCSPACE)
    NetFloorArea = 28.3306217193604 (IFCAREAMEASURE) [SQUARE_METRE]
    NetVolume = 104.605994440119 (IFCVOLUMEMEASURE) [CUBIC_METRE]
  Pset_SpaceCommon | properties | on 1 object (1 IFCSPACE)
    IsExternal = FALSE (IFCBOOLEAN)
  EPset_Opening | properties | on 2 type objects
    OverallHeight = 2.23 (IFCREAL)
    OverallWidth = 0.91 (IFCREAL)
  EPset_Opening | properties | on 1 type object
    OverallHeight = 1.82 (IFCREAL)
    OverallWidth = 0.91 (IFCREAL)
  Pset_WindowCommon | properties | on 3 type objects
    IsExternal = TRUE (IFCBOOLEAN)
    ThermalTransmittance = 1.4 (IFCTHERMALTRANSMITTANCEMEASURE)