DXF Group Codes
ENTITIES Section
RAY

The following group codes apply to ray entities.

Ray group codes
Group codes Description

100

Subclass marker (AcDbRay)

10

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

20, 30

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

11

Unit direction vector (in WCS).
DXF: X value; APP: 3D vector

21, 31

DXF: Y and Z values of unit direction vector (in WCS)