Chapter 6 -- ENTITIES Section
RAY

The following group codes apply to ray entities. In addition to the group codes described here, see "Common Group Codes for Entities." For information about abbreviations and formatting used in this table, see "Formatting Conventions in This Reference."

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)