Chapter 6 -- ENTITIES Section POLYLINE

The following group codes apply to polyline 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."

Polyline group codes
 Group codes Description 100 Subclass marker (AcDb2dPolyline or AcDb3dPolyline) 10 DXF: always 0APP: a "dummy" point; the X and Y values are always 0, and the Z value is the polyline's elevation (in OCS when 2D, WCS when 3D) 20 DXF: always 0 30 DXF: polyline's elevation (in OCS when 2D, WCS when 3D) 39 Thickness (optional; default = 0) 70 Polyline flag (bit-coded); default is 0:1 = This is a closed polyline (or a polygon mesh closed in the M direction).2 = Curve-fit vertices have been added.4 = Spline-fit vertices have been added.8 = This is a 3D polyline.16 = This is a 3D polygon mesh.32 = The polygon mesh is closed in the N direction.64 = The polyline is a polyface mesh.128 = The linetype pattern is generated continuously around the vertices of this polyline. 40 Default start width (optional; default = 0) 41 Default end width (optional; default = 0) 71 Polygon mesh M vertex count (optional; default = 0) 72 Polygon mesh N vertex count (optional; default = 0) 73 Smooth surface M density (optional; default = 0) 74 Smooth surface N density (optional; default = 0) 75 Curves and smooth surface type (optional; default = 0); integer codes, not bit-coded:0 = No smooth surface fitted5 = Quadratic B-spline surface6 = Cubic B-spline surface8 = Bezier surface 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)

Xdata with the "AUTOCAD_POSTSCRIPT_FIGURE" application ID may follow a polyline entity. This contains information related to PostScript images and PostScript fill information.

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