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Group codes 210 220 230 not in DXF file

I have a simple question, I'm saving a DXF file as R12, but I can't find the group codes 210 220 and 230 for arcs. This is a piece of the DXF file:

  0
ARC
  5
44
  8
0
  6
CONTINUOUS
 62
     7
 10
0.0
 20
0.0
 30
0.0
 40
180.0
 50
0.0
 51
180.0
  0
ARC
  5

Do I need to save this dxf file as an other version? I need this information for specifying the rotation of the arc... (CW or CCW). Thanks for the help!

Solution

  • The help documentation provided by AutoDesk indicate that the 210 / 220 / 230 values are for the extrusion and are optional.

    DXF Arc values

    The help documentation also states:

    Arcs are drawn in a counterclockwise direction by default. Hold down the Ctrl key as you drag to draw in a clockwise direction.

    The rotation of the arc is attributes 50 and 51 (expressed in radians). Unless, you are referring to the 3D rotation (relative to another view). In which case those attributes are required. But if you are in the World Coordinate System (WCS) when you create your arcs the extrusions are not required.