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page 37. For information about abbreviations and formatting used in this<br />
table, see “Formatting Conventions in This Reference” on page 6.<br />
VPORT group codes<br />
Group codes<br />
Description<br />
100 Subclass marker (AcDbViewportTableRecord)<br />
2 Viewport name<br />
70 Standard flag values (bit-coded values):<br />
16 = If set, table entry is externally dependent on an xref<br />
32 = If this bit and bit 16 are both set, the externally dependent xref<br />
has been successfully resolved<br />
64 = If set, the table entry was referenced by at least one entity in the<br />
drawing the last time the drawing was edited. (This flag is for the<br />
benefit of AutoCAD commands. It can be ignored by most programs<br />
that read DXF files and need not be set by programs that write DXF<br />
files)<br />
10 Lower-left corner of viewport<br />
DXF: X value; APP: 2D point<br />
20 DXF: Y value of lower-left corner of viewport<br />
11 Upper-right corner of viewport<br />
DXF: X value; APP: 2D point<br />
21 DXF: Y value of upper-right corner of viewport<br />
12 View center point (in DCS)<br />
DXF: X value; APP: 2D point<br />
22 DXF: Y value of view center point (in DCS)<br />
13 Snap base point<br />
DXF: X value; APP: 2D point<br />
23 DXF: Y value of snap base point<br />
14 Snap spacing X and Y<br />
DXF: X value; APP: 2D point<br />
24 DXF: Y value of snap spacing X and Y<br />
15 Grid spacing X and Y<br />
DXF: X value; APP: 2D point<br />
25 DXF: Y value of grid spacing X and Y<br />
52 | Chapter 4 TABLES Section
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