Hatch pattern study

In our dxf write, there is no pattern information. so Cad complains about too dense pattern or crashes.

Some material on dxf write

about pattern file

http://www.afralisp.net/autocad/tutorials/creating-hatch-patterns.php


About dxf writing

http://adndevblog.typepad.com/autocad/2013/01/hatch-pattern-and-dxf-codes.html


*HONEY,Honeycomb pattern
0, 0, 0, 4.7625, 2.749630645, 3.175, -6.35
120, 0, 0, 4.7625, 2.749630645, 3.175, -6.35
60, 0, 0, 4.7625, 2.749630645, -6.35, 3.175

Dxf write with 100 scale

 53
0.0
 43
0.0
 44
0.0
 45
18.75
 46
10.82
 79
     2
 49
12.5
 49
-25.0
 53
120.0
 43
0.0
 44
0.0
 45
18.75
 46
10.825
 79
     2
 49
12.5
 49
-25.0
 53
60.0
 43
0.0
 44
0.0
 45
18.75
 46
10.825
 79
     2
 49
-25.0
 49
12.5

Dxf file

Untitled1.dxf

DXf hatch pattern autocad reference

http://www.autodesk.com/techpubs/autocad/acad2000/dxf/pattern_data_dxf_06.htm#XREF_15719_DXF_06

DXf hatch autocad reference

http://www.autodesk.com/techpubs/autocad/acad2000/dxf/hatch_dxf_06.htm