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IfcIO v0.4.0

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@github-actions github-actions released this 10 Nov 17:50
· 42 commits to main since this release
v0.4.0
795c1d0
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Major Additions & Capabilities

  • Base Quantities & Quantity Takeoff Sets (IfcQuantitySet / IFCELEMENTQUANTITY):
    • Strongly-typed model hierarchy for buildingSMART physical simple quantities: IfcQuantityLength, IfcQuantityArea, IfcQuantityVolume, IfcQuantityCount, IfcQuantityWeight.
    • Standard buildingSMART Quantity Takeoff builders (StandardQtoSets):
      • WallBaseQuantities / Qto_WallBaseQuantities (Length, Width, Height, GrossFootprintArea, NetSideArea, GrossVolume, NetVolume).
      • SlabBaseQuantities / Qto_SlabBaseQuantities (Width, Length, Depth, Perimeter, GrossArea, NetArea, GrossVolume, NetVolume).
      • ColumnBaseQuantities / Qto_ColumnBaseQuantities (Length, CrossSectionArea, OuterSurfaceArea, TotalSurfaceArea, GrossVolume, NetVolume).
      • BeamBaseQuantities / Qto_BeamBaseQuantities (Length, CrossSectionArea, OuterSurfaceArea, GrossVolume, NetVolume).
      • WindowBaseQuantities / Qto_WindowBaseQuantities, DoorBaseQuantities / Qto_DoorBaseQuantities.
    • Automatic geometric quantity calculation engine (IfcQuantityCalculator): exact enclosed mesh volume via tetrahedral divergence theorem, total face surface area, cross-section area, profile perimeter, footprint area, and automatic deduction of openings for net volumes.
    • Model-level helper model.CalculateAllBaseQuantities() to calculate and attach standard buildingSMART Qto sets across all elements in the entire model.
    • Full ISO 10303-21 STEP physical file serialization (IFCELEMENTQUANTITY, IFCQUANTITYLENGTH, IFCQUANTITYAREA, IFCQUANTITYVOLUME, IFCQUANTITYCOUNT, IFCQUANTITYWEIGHT) linked via IFCRELDEFINESBYPROPERTIES and deserialization.
  • Parametric Revolved Swept Solids (IfcRevolvedAreaSolid):
    • Revolves 2D cross-section profiles (IfcRectangleProfileDef, IfcCircleProfileDef, IfcArbitraryClosedProfileDef) around an axis line (IfcAxis1Placement) by a revolution angle $\theta \in (0, 2\pi]$.
    • Automatic on-demand mesh generation (solid.ToMesh()) supporting full revolutions ($2\pi$) and partial revolutions with end caps.
    • Model-level helper model.AddRevolvedSolid(...).
    • Full serialization and deserialization of IFCREVOLVEDAREASOLID and IFCAXIS1PLACEMENT.
  • Model Validation Enhancements (IfcValidator):
    • Added rule IFC_QUANTITY_POSITIVE: verifies that length, area, volume, count, and weight values are non-negative and finite numbers.
    • Added rule IFC_QUANTITY_NAME: validates non-whitespace quantity and quantity set names.
    • Added rule IFC_REVOLVED_ANGLE: validates that revolution angle is finite and in $(0, 2\pi]$.
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