R13 Minimum TABLE requirements

[dcooley]

The documentation for R13 tables (https://ezdxf.readthedocs.io/en/stable/dxfinternals/filestructure.html#dxf-r13-r14-and-later) states

VPORT entry *ACTIVE is not required! Empty table is ok for AutoCAD.

Does this mean that the VPORT table can be empty, or the *ACTIVE table can be empty?

In the MINIMAL_DXF_AC1021 file there is a *ACTIVE entry - https://github.com/mozman/ezdxf/blob/master/examples_dxf/Minimal_DXF_AC1021.dxf#L50

If this is the 'minimal' requirements for the AC1021 version, should the *ACTIVE entry be empty / not there at all?

[mozman]

Just try it. DXF is a text format you can edit the file with any text editor. Than open the file with AutoCAD or DWG Trueview and look what happens.

[dcooley]

I tried opening it in AutoCad's online viewer but it fails.