[cgma-dev] get_graphics for OpenCascade?

[Jane Hu]

I just updated cgm/trunk to return a failure for this call.

Jane


On Thu, Aug 15, 2013 at 11:33 AM, David Thompson <david.thompson at kitware.com
> wrote:

> Hi Jane,
>
> > Sorry I didn't see the last two post before I sent out mine. David, is
> the meshing code fast enough for you?
>
> I will give it a try when it makes it into meshkit. It certainly sounds
> like a better solution than trying to fix or work around problems in the
> underlying modeling kernel.
>
> However, it would be nice if geom/GeometryQueryTool.cpp paid attention to
> the return value of gqe->get_graphics() so that calls to
> GeometryQueryTool::get_graphics(BodySM*, ...) would return failure instead
> of SUCCESS with an empty output.
>
>         Thanks,
>         David
>
>
> > On Thu, Aug 15, 2013 at 10:10 AM, Tim Tautges <tautges at mcs.anl.gov>
> wrote:
> >
> >
> > On 08/15/2013 09:55 AM, David Thompson wrote:
> > ... As for watertight triangulations from the faceter, for single
> volumes, from ACIS, the faceting is generally watertight (though the facets
> from separate surfaces don't share points).  But for multiple volumes
> sharing surfaces, the faceting often won't be watertight.
> >
> > That all sounds OK.
> >
> > ... There's a tool in MeshKit that does make facet models coming from
> CAD watertight, and has shown good robustness even for huge models.  ...
> >
> >
> > If it's fast, that would be great. If it's slow and generating a
> high-quality mesh, that's probably not what we're looking for here (but
> would be using elsewhere).
> >
> >
> > IIRC, it's fast enough even for large models.  See
> http://www.imr.sandia.gov/papers/imr19/Smith2B.3.pdf.
> >
> > - tim
> >
> >
> >         Thanks,
> >         David
> >
> >
> > --
> > ================================================================
> > "You will keep in perfect peace him whose mind is
> >   steadfast, because he trusts in you."               Isaiah 26:3
> >
> >              Tim Tautges            Argonne National Laboratory
> >          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
> >  phone (gvoice): (608) 354-1459      1500 Engineering Dr.
> >             fax: (608) 263-4499      Madison, WI 53706
> >
> >
> >
> >
> > --
> > Jane Hu
> >
> > Asst. Researcher
> > Dept. of Engineering Physics
> > UW @ Madison
> >
> > "And we know that for those who love God, that is, for those who are
> called according to his purpose, all things are working together for good."
> (Romans 8:28)
>
>


-- 
Jane Hu

Asst. Researcher
Dept. of Engineering Physics
UW @ Madison

"And we know that for those who love God, that is, for those who are called
according to his purpose, all things are working together for good."
(Romans 8:28)
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