The DXF is a proprietary file format of the AutoCAD system used for transferring geometry and drawing information although many other types of tools support this format too. It is the primary format for transferring basic geometry data. However, it has limited support for NURBS surfaces.
Note: AutoCAD locks any DXF files it has open. Consequently, PolyCAD cannot open any exported files from AutoCAD until these are closed.
|Box||as Facets (3DFACE)|
|BSpline Curve||Yes||Only for uniform Quadratic and Cubic Curves, otherwise control polygon is exported as a Polyline.|
|BSpline Surface||Yes||as a Mesh|
|BSpline Suface List||as Meshs|
|Cubic Spline||as Polyline|
|Groups||Entities within closed groups are exported|
|IntelliCurve||Convert to BSpline Curve|
|IntelliHull||Convert to BSpline Surface|
|Interpolating Cubic BSpline||Yes|
|X-Topology Curves||as Polylines (Non-Uniform BSpline not supported)|
|X-Topology Surface||as Meshs (Non-Uniform BSpline not supported) except if using Bezier Coons patches|