100

Subclass marker (AcDbTrace)

10

First corner. DXF: X value; APP: 3D point

20, 30

DXF: Y and Z values of first corner

11

Second corner. DXF: X value; APP: 3D point

21, 31

DXF: Y and Z values of second corner

12

Third corner. DXF: X value; APP: 3D point

22, 32

DXF: Y and Z values of third corner

13

Fourth corner. If only three corners are entered to define the SOLID, then the fourth corner coordinate is the same as the third
DXF: X value; APP: 3D point

23, 33

DXF: Y and Z values of fourth corner

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