DXF Group Codes
ENTITIES Section
TRACE

The following group codes apply to trace entities.

Trace group codes
Group codes Description

100

Subclass marker (AcDbTrace)

10

First corner (in OCS). DXF: X value; APP: 3D point

20, 30

DXF: Y and Z values of first corner (in OCS)

11

Second corner (in OCS). DXF: X value; APP: 3D point

21, 31

DXF: Y and Z values of second corner (in OCS)

12

Third corner (in OCS). DXF: X value; APP: 3D point

22, 32

DXF: Y and Z values of third corner (in OCS)

13

Fourth corner (in OCS). DXF: X value; APP: 3D point

23, 33

DXF: Y and Z values of fourth corner (in OCS)

39

Thickness (optional; default = 0)

210

Extrusion direction. (optional; default = 0, 0, 1).
DXF: X value; APP: 3D vector

220, 230

DXF: Y and Z values of extrusion direction