Translations:DXF/4/en

The same is true for DXF. You will hear of certain key versions of DXF, such as R12 (from 1992) or R14 (from 1997 which had splines). Later versions of DXF had 3D elements, but these are rarely used or implemented. How you use DXF to share CAD data between two programs depends mainly on the limitations and bugs in the corresponding readers/importers and writers/exporters. Not surprisingly, there is rarely complete documentation of program limitations and bugs, which is a great source of frustration.