TRACE

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TOLERANCE

ENTITIES Section

UNDERLAY

TRACE

The following group codes apply to trace 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.

Trace group codes
Group code	Description
100	Subclass marker (AcDbTrace)
10	First corner (in OCS) DXF: X value; APP: 3D point
20, 30	DXF: Y and Z values of first corner (in OCS)
11	Second corner (in OCS) DXF: X value; APP: 3D point
21, 31	DXF: Y and Z values of second corner (in OCS)
12	Third corner (in OCS) DXF: X value; APP: 3D point
22, 32	DXF: Y and Z values of third corner (in OCS)
13	Fourth corner (in OCS) DXF: X value; APP: 3D point
23, 33	DXF: Y and Z values of fourth corner (in OCS)
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 (optional)

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