Dxf Export - Random intersect lines

[Eric]

I am running newest version of Inkscape 0.91 w/Windows 7. I open up bitmap and use the "Trace Bitmap" feature. Inkscape produces a good copy. I then export DXF. When I open up the DXF in a CAD software, the dxf has random intersect lines that are attached to sharp angled nodes. I attached a JPEG as an example of what is happening. When I "Trace Bitmap" and then "Simplify", then the random lines disappear, but then I have less detail of the traced image when importing into CAD program.

[su_v (suv-lp)]

Please also attach the original Inkscape SVG file and the exported DXF file to the bug report to allow further investigation. A screenshot of the DXF export options dialog might also be helpful.

[su_v (suv-lp)]

Attaching SVG file with bitmap trace (not simplified) created using 0.91 r13725 on OS X for convenience, and in order to have a test case available which can be used on other systems.

What about the DXF export options?
(works for me with 0.91 r13725 on OS X 10.7.5 if I uncheck '[ ] use LWPOLYLINE type of line output' on DXF export.)

[Eric (eric-buchanan)]

I did have LWPOLYLINE checked on the original problem request. I uncheck LWPOLYLINE and was successful in opening DXF into CAD without any extra polylines. Thank you

[Alvin Penner (apenner)]

fix committed to rev 13980.
this fixes an incorrect implementation of a closed flag on LWPOLYLINE that was introduced in rev 12033, for Bug 1098283. The LWPOLYLINE output should now render the same as the old-style LINE element. This can be used by downloading dxf_outlines.py and dxf_outllines.inx from:
http://bazaar.launchpad.net/~inkscape.dev/inkscape/trunk/files/head:/share/extensions/

just a word of warning, though, the new version uses a standard Inkscape resolution of 96dpi, not 90dpi.

[ScislaC (scislac)]

Backported to 0.91.x in r13738.