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IfcIO v0.5.0

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@github-actions github-actions released this 10 Nov 18:29
· 41 commits to main since this release
v0.5.0
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Major Additions & Capabilities

  • Architectural & MEP Spaces (IfcSpace / IFCSPACE):
    • Strongly-typed IfcSpace model representing spatial structures, rooms, zones, and MEP compartments.
    • Attributes: SpaceNumber (tag/description), LongName, GrossFloorArea, NetFloorArea, Height, GrossVolume, InteriorOrExteriorSpace.
    • Containment in IfcBuildingStorey.Spaces and model aggregation via model.AllSpaces.
    • Convenient model builder model.AddSpace(name, spaceNumber, longName, grossFloorArea, height, storey, mesh).
    • Full ISO 10303-21 STEP physical file serialization (IFCSPACE) and deserialization.
  • Space Boundaries (IfcSpaceBoundary / IFCRELSPACEBOUNDARY):
    • Strongly-typed IfcSpaceBoundary linking spaces to enclosing architectural and structural elements (walls, slabs, columns).
    • Classification: PhysicalOrVirtual (Physical, Virtual), InternalOrExternal (Internal, External).
    • Full STEP serialization and deserialization via IFCRELSPACEBOUNDARY.
  • Building Systems & Groups (IfcSystem / IfcGroup):
    • IfcSystem representing MEP distribution networks (IFCDISTRIBUTIONSYSTEM) and functional building systems (IFCSYSTEM).
    • IfcGroup representing generic element groups (IFCGROUP).
    • Relationship assignment via IFCRELASSIGNSTOGROUP with bidirectional referencing.
    • Model-level helpers: model.AddSystem(...), model.AddGroup(...), model.Systems, model.Groups.
  • buildingSMART BCF 2.1 Issue Management (IfcIO.Bcf):
    • Complete, zero-dependency read/write implementation of the buildingSMART BIM Collaboration Format 2.1 specification (.bcfzip).
    • Strongly-typed models: BcfTopic, BcfComment, BcfViewpoint.
    • Viewpoint camera parameters (CameraPosition, CameraDirection, CameraUpVector, FieldOfView) and selected IFC element GUIDs.
    • Serialization engine BcfZipExporter: generates compliant bcf.version, markup.bcf, and viewpoint.bcfv XML documents.
    • Validation-to-BCF pipeline: model.ExportValidationBcf("issues.bcfzip") converts all validation errors and warnings into actionable BCF topics with attached IFC GUIDs.
  • Model Validation Engine Updates (IfcValidator):
    • Space validation rules: IFC_SPACE_AREA (verifies positive/finite area), IFC_SPACE_HEIGHT (verifies positive/finite height).
    • System and group rules: IFC_SYSTEM_NAME, IFC_SYSTEM_EMPTY, IFC_GROUP_NAME.
  • CLI Enhancements (IfcIO.Cli):
    • Added --bcf <issues.bcfzip> to validate command for automatic BCF report generation.
    • Added --spaces and --systems flags to info command to inspect spatial structures and MEP systems.
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