View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0000308||FreeCAD||Bug||public||2011-03-13 15:23||2011-03-29 19:53|
|Priority||normal||Severity||minor||Reproducibility||have not tried|
|Target Version||0.12||Fixed in Version||0.12|
|Summary||0000308: Exported dxf totally broken when re-importing|
|Description||According to the forum thread the exported dxf file is completely broken because everything lies in a common plane.|
|Tags||No tags attached.|
Here you'll find the tested example http://www.file-upload.net/download-3281126/packen.zip.html
The file is too big to upload it to Mantis so I give only the url here.
I guess this is the forum thread:
Okay thanks for telling me, I hadn't looked at the german topic :)
I'll have a look ASAP
Hm for me the .fcstd file crashes on opening... The dxf file imports fine, though.
Is the fact that everything gets "flattened" that is wrong? Because that is not a bug, it's a feature :)
More seriously, the dxf format is pretty bad for working with complex 3D, the only "free" way to write 3D objects in dxf format is to use prehistoric 3DFACE elements (The "real" 3D data of a dxf file is a big block of encoded SAT data, which is not free neither documented). At the moment, the dxf exporter assumes you will work with 2D only, and everything gets flattened indeed (same as what the blender dxf exporter does).
I have plans to add 3DFACE support ( see 0000151 ) but that's probably the best I'll be able to do...
Can someone else see if the .fcstd file crashes with latest freecad revision? (The file itself is valid because it can be unzipped and the thumbnail extracted)
Draft preferences now have an option to export 3D geometry as 3D polyfaces, allowing a more-or-less decent DXF 3D support. Note that all objects will be transformed into meshes, though. This is unavoidable unless some open ACIS .SAT data parser becomes available.
Feel free to reopen this if something can be bettered in the current implementation...
|2011-03-13 15:23||wmayer||New Issue|
|2011-03-13 15:23||wmayer||Status||new => assigned|
|2011-03-13 15:23||wmayer||Assigned To||=> yorik|
|2011-03-13 15:26||wmayer||Note Added: 0000729|
|2011-03-13 17:50||normandc||Note Added: 0000730|
|2011-03-14 22:58||yorik||Note Added: 0000734|
|2011-03-14 23:11||yorik||Note Added: 0000735|
|2011-03-14 23:12||yorik||Relationship added||child of 0000151|
|2011-03-29 19:53||yorik||Note Added: 0000756|
|2011-03-29 19:53||yorik||Status||assigned => closed|
|2011-03-29 19:53||yorik||Resolution||open => fixed|
|2011-03-29 19:53||yorik||Fixed in Version||=> 0.12|