kicad-developers team mailing list archive

["easyw@xxxxxxxxxxxx" <easyw@xxxxxxxxxxxx>]

Hi Tom,
that would be great!

If you are planning to make a wx IPC service including OCC, please 
consider to add also vrml import option that is missing in OCC

I found at
http://www.opencascade.org/org/forum/thread_18400/?forum=3
there is some code about it...

That could add the ability to convert vrml to the right STEP format as 
an intermediate phase in the evolution of the 3d-viewer
(converting vrml to stl and then to step it is a bit messy for the plain 
pcb board)

Maurice

On 6/16/15 2:00 PM, Tomasz Wlostowski wrote:
> On 16.06.2015 12:40, easyw@xxxxxxxxxxxx wrote:
> > Hi Cirilo and Tom,
> >
> > I tried OCC to import a stl shape (to263 from kicad lib generated from
> > wings3d) and generate step and iges models and render it in wxpython...
> >
> > please find attached the py code used for conversion and IGES and STEP
> > generated
>
> Hi Maurice,
>
> This is cool! I did more or less the same in C++. There are few caveats
> with OCC though:
> - dealing with colors when loading STEP needs some extra code (OCC
> doesn't handle color correctly if the color is an attribute of an
> assembly instead of a single shape),
> - when exporting a hierarchical STEP assembly, the hierarchy must be
> build bottom-up,
> - In order to get the names of the parts OK I had to dive in the
> internal STEP representation of the data. It's not very complex, it just
> takes a few extra lines of code.
>
> For the moment, I'm thinking of making a wx IPC service that would
> include OCC, mesh & cache models and export assemblies. It could be
> built as an option. Other possibility is to use DLL plugins, but I'm
> afraid it's a much bigger endeavor to get them to work reliably on all
> OS platforms. Certainly not for the stable release.
>
> Tom
>
>
> > Maurice
> >
> > On 6/16/15 12:20 PM, Tomasz Wlostowski wrote:
> > > On 16.06.2015 12:02, easyw@xxxxxxxxxxxx wrote:
> > > > Hi Cirilo,
> > > >
> > > > it seems that Peter Clifton has added AP214 support:
> > > > http://comments.gmane.org/gmane.comp.cad.geda.user/43517
> > > Hi Maurice,
> > >
> > > It looks like just a hack to me (just the board shape). Adding
> > > components will be IMHO more complex... Besides Peter's approach does
> > > not solve the problem of meshing/visualization of STEP component models
> > > (see [1] for an example - this is all STEP).
> > >
> > > Regards,
> > > Tom
> > >
> > > [1] https://edms.cern.ch/file/1158539/1/EDA-02189-V4-0_3D-top.jpg