The following group codes apply to angular dimensions. In addition to the group codes described here, those listed in Common Group Codes for Entities and Common Dimension Group Codes can also be present.
Angular dimension group codes 


Group code 
Description 
100 
Subclass marker (AcDb3PointAngularDimension) 
13 
Definition point for linear and angular dimensions (in WCS) DXF: X value; APP: 3D point 
23, 33 
DXF: Y and Z values of definition point for linear and angular dimensions (in WCS) 
14 
Definition point for linear and angular dimensions (in WCS) DXF: X value; APP: 3D point 
24, 34 
DXF: Y and Z values of definition point for linear and angular dimensions (in WCS) 
15 
Definition point for diameter, radius, and angular dimensions (in WCS) DXF: X value; APP: 3D point 
25, 35 
DXF: Y and Z values of definition point for diameter, radius, and angular dimensions (in WCS) 
16 
Point defining dimension arc for angular dimensions (in OCS) DXF: X value; APP: 3D point 
26, 36 
DXF: Y and Z values of point defining dimension arc for angular dimensions (in OCS) 
The points (13,23,33) and (14,24,34) specify the endpoints of the line used to determine the first extension line. Points (10,20,30) and (15,25,35) specify the endpoints of the line used to determine the second extension line. Point (16,26,36) specifies the location of the dimension line arc. The point (11,21,31) specifies the midpoint of the dimension text.
The point (15,25,35) specifies the vertex of the angle. The points (13,23,33) and (14,24,34) specify the endpoints of the extension lines. The point (10,20,30) specifies the location of the dimension line arc and the point (11,21,31) specifies the midpoint of the dimension text.