100

Subclass marker (AcDbFcf)

3

Dimension style name

10

Insertion point. (in WCS). DXF: X value; APP: 3D point

20, 30

DXF: Y and Z values of insertion point (in WCS)

210

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

220, 230

DXF: Y and Z values of extrusion direction

11

X-axis direction vector (in WCS)
DXF: X value; APP: 3D vector

21, 31

DXF: Y and Z values of X-axis direction vector (in WCS)