Import CAD Files (.dxf/.dwg)
CAD .dwg and .dxf files are drawing files used in architecture, civil engineering, design, and mapping industries. At the bottom of the import pane, you can specify settings that affect how the data imports.
Note: When you import CAD files, the imported objects retain their native properties. Many of these properties, however, are unneeded in this software so they are not visible or editable. Only their most common properties appear in the Properties pane. Depending on the object, these properties may include:
- name
- line or text style
- line style scale or text size
- color
- layer
- elevation
If you edit any of the linear CAD objects, such as arcs, lines, polylines, they are converted into linestrings and lose all of their native properties (they are replaced by linestring properties). If you export unedited CAD objects to a CAD file format, their native properties exist in the exported objects.
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Importable Data |
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Data in the file |
How the data is handled when imported |
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| 3D Face |
This data is imported as a CAD 3D Face. |
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| 3D Polyline |
This data is imported as a CAD 3D Poly Line. |
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| Arc |
This data is imported as a CAD Arc. |
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| Attribute |
This data is imported as a CAD Attribute Definition. |
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| Attribute reference |
This data is imported as a CAD Attribute Reference. |
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| Block reference |
This data is imported as a CAD Block Reference. |
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| Circle |
This data is imported as a CAD Circle. |
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| Coordinate |
This data is imported as a Coordinate. |
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| Dimensions |
The following dimension data is imported:
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| Ellipse |
This data is imported as a CAD Ellipse. |
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| Hatch |
This data is imported as a CAD Hatch. Note: If the associated hatch pattern definition file (e.g., acadiso.pat) cannot be found, the hatch patterns are not imported. |
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| Leader |
This data is imported as a CAD Leader. |
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| Lightweight polyline |
This data is imported as a CAD Lightweight Polyline. |
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| Line |
This data is imported as a CAD Line. |
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| M Line |
This data is imported as a CAD Multi-line. |
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| M Text |
This data is imported as a CAD Multi-line Text. |
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| Mesh |
This data is imported as a 3D polyface mesh, 3D polygon mesh, or 3D solid. This enables you to import meshes from other applications like AutoCAD. You can also export tunnel meshes from TBC and reimport them. |
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| Point |
This data is imported as a CAD Point. |
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| Point |
This data is imported as a Point. |
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| Polyline |
This data is imported as a CAD PolyLine. |
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| Ray |
This data is imported as a CAD Ray. |
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| Shape |
This data is imported as a CAD Shape. |
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| Solid |
This data is imported as a CAD Solid. |
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| Spline |
This data is imported as a CAD Spline. |
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| Text |
This data is imported as a CAD Text. |
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| Trace |
This data is imported as a CAD Trace. |
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| Xline |
This data is imported as a CAD XLine. |
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Non-importable Data |
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