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Known Limitations#

These known limitations apply to the latest CAD Converter release. See the release notes for version history.

DGN Converter#

  • The following DGN element types are unsupported currently in the DGN Converter:

    • OdDgAnnotationCellHeader2d

    • OdDgAssocRegion2d

    • OdDgDetailingSymbolCellHeader2d

    • OdDgTitleText2d

    • OdDgSectionMarker2d

    • OdDgArrowMarker2d

    • OdDgDetailMarker2d

    • OdDgOle2Frame2d

    • OdDgShape2d (hole)

    • OdDgShape3d (hole)

    • OdDgComplexShape (hole)

    • OdDgCurve2d

    • OdDgCurve3d

    • OdDgComplexString

    • OdDgConic2d

    • OdDgConic3d

    • OdDgPointString2d

    • OdDgPointString3d

    • OdDgDimension

    • OdDgDimSizeArrow

    • OdDgDimSizeStroke

    • OdDgDimSingleLocation

    • OdDgDimStackedLocation

    • OdDgDimAngleSize

    • OdDgDimArcSize

    • OdDgDimAngleLocation

    • OdDgDimArcLocation

    • OdDgDimAngleLines

    • OdDgDimAngleAxisX

    • OdDgDimAngleAxisY

    • OdDgDimNote

    • OdDgDimLabelLine

    • OdDgDimRadius

    • OdDgDimRadiusExtended

    • OdDgDimDiameter

    • OdDgDimDiameterExtended

    • OdDgDimDiameterParallel

    • OdDgDimDiameterPerpendicular

    • OdDgDimCustomLinear

    • OdDgDimOrdinate

    • OdDgDimCenter

    • OdDgMultiline

    • OdDgTagElement

    • OdDgRasterHeader2d

    • OdDgRasterHeader3d

    • OdDgRasterComponent

    • OdDgRasterFrame

    • OdDgSectionClip

    • OdDgKMLPlacemark2d

    • OdDgKMLPlacemark3d

Performance and memory#

  • Converting to USD can take more memory and CPU power depending on the type of data and Tessellation settings. File size is not an indicator of how fast a conversion will be or how much memory is required. In most cases, we recommend a minimum of 16 GB. Complex files will need a minimum of 32 GB of memory available for conversion.

PMI and BIM data#

  • PMI and BIM data is not converted for the following formats: .dgn, .jt, .fbx, .obj, .gltf, .glb, .ply, .lxo, .md5, .e57, and .pts.