minimal DXF file

[Anonymous]

Hi all,

My program writes a DXF file with polylines.

Till now I used a minimal format:
0
SECTION
...entities
0
ENDSEC
0
EOF

For polylines I used POLYLINE, which uses a lot of space for each vertex.
Everything worked fine.
Now I have to use LWPOLYLINE, because files will be roughly half the size
they would be with POLYLINE.

But AutoCAD reports problem (Undefined group code 10 for object on line ...)
with:
0
LWPOLYLINE
8
layer
10
591330.14
20
143930.02
30
0.0
10
591334.84
20
143937.01
30
0.0
even when I insert a LWPOLYLINE from an otherwise valid ACAD generated DXF
file. If I paste header information from a valid file, then it's some header
error etc.
It seems some header information is missing and nothing's wrong with
LWPOLYLINE itself.

Can someone please tell me what are the minimal requirements for DXF file
with LWPOLYLINES?

Thanks.

Igor

[Anonymous]

Hi Igor
Did you find an answer to this problem ? I just come across an similar problem that I woul like to solve.

Best Regards // Tobben
torbjorn.larsson@epsilongroup.net

[liftedaxis]

Igor,

When making LWPolys using entmake, I have to include a 100 "AcDbEntity" and a 100 "AcDbPolyline". Try adding those and see if it helps.

--Jeremiah