My suggestion for an OpenCad format would be to look at vtk, since it is widespread in academic use and GPL Licensed. See here for a definition of the format:
http://www.vtk.org/pdf/file-formats.pdf
The company behind it is kitware.com and the Graphical UI is called Paraview. I might be worthwhile to include vtk in you comparison.
Take a look at the caelinux.com Distribution. It has the mentioned software and much more installed onto a LiveDVD ready to try.
Regards,
Dirk
> The company behind it is kitware.com and the Graphical UI is called Paraview. I might be worthwhile to include vtk in you comparison.
>
> Take a look at the caelinux.com Distribution. It has the mentioned software and much more installed onto a LiveDVD ready to try.
>
>
It愀 great.
caelinux-salome It seem like a fork from opencascade but more complete.
http://www.salome-platform.org/download/dl326/
I add this new libraries here:
http://groups.google.es/group/open_cad_format/web/free-libraries
Regards.