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Legacy IFCImport Comparison

Compare the differences between the legacy IFCImport command and the Import from IFC tool.

  • All objects are imported as either Civil 3D objects or AutoCAD meshes/3D solids. IFC 4.3 Extension for Civil 3D does not create AEC objects such as AEC_SLAB or AEC_WALLS.
  • Import from IFC tool (IFCInfraImport command) objects import to the current drawing. IFCImport created multiple new drawings.
  • Imported objects are not placed in blocks. For example, an imported corridor will result in multiple solids, surfaces and feature lines.
  • Performance improvements, though the Import from IFC tool (IFCInfraImport command) does not provide a progress bar.
  • IFC 4.3 Extension for Civil 3D focuses on geometry and property set data, so materials and colors are not fully supported.
  • IFC 4.3 Extension for Civil 3D supports a small subset of 2x3 geometry. The following example of a car park IFC 2x3 coordination view exported from Revit.

    Import from IFC tool

    IFCImport command

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