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Viewport group codes (continued)<br />
Group codes<br />
Description<br />
13 Snap base point<br />
DXF: X value; APP: 2D point<br />
23 DXF: Snap base point Y value<br />
14 Snap spacing<br />
DXF: X value; APP: 2D point<br />
24 DXF: Snap spacing Y value<br />
15 Grid spacing<br />
DXF: X value; APP: 2D point<br />
25 DXF: Grid spacing Y value<br />
16 View direction vector (in WCS)<br />
DXF: X value; APP: 3D vector<br />
26, 36 DXF: Y and Z values of view direction vector (in WCS)<br />
17 View target point (in WCS)<br />
DXF: X value; APP: 3D vector<br />
27, 37 DXF: Y and Z values of view target point (in WCS)<br />
42 Perspective lens length<br />
43 Front clip plane Z value<br />
44 Back clip plane Z value<br />
45 View height (in model space units)<br />
50 Snap angle<br />
51 View twist angle<br />
72 Circle zoom percent<br />
341 Frozen layer object ID/handle (multiple entries may exist) (optional)<br />
110 | Chapter 6 ENTITIES Section
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