[vtkusers] Re: curved surfaces - NURBS

[Tuhin Sinha]

Hey all,

  I implemented the vtkNURBSSurfaceSource class under Linux and managed
to get things working.  I sent off a copy of the class to Kitware for
review, but I never heard from them regarding its incorporation in the
the mainline tree.  In the meantime, I found that the class doesn't
compile under Windows due to a lacking support for GLU 1.3.  So we have
a flag in our vtkMy tree that selectively compiles vtkNURBSSurfaceSource
under Linux only.  I have thought about extracting the relevant GLU code
from the XFree/Mesa tree and putting it in as a Utilities library so the
class can be used cross-platform.  I am currently happy with my
*supercool* class working only under Linux.  Hoever, if there is
interest in this class for general purpose use... I can look into
figuring out how to get the GLU stuff included with cross-platform
issues in mind.

Best regards,

TKS

On Tue, 2004-08-17 at 15:44, Goodwin Lawlor wrote:
> Hi Tuhin,
> 
> What happened to vtkNURBSSurfaceSource (
> http://public.kitware.com/pipermail/vtkusers/2002-December/064657.html )?
> There was a vtk class that used GLU to tesselate polygons so it is possible
> to wrap the library. What problem did you hit?
> 
> Thanks,
> 
> Goodwin
> 
> ps If whoever writes the NURBS class gets bored, a vtkIGESWriter/Expoter
> would be useful and would pass the time for you nicely ;-)
> 
> 
> 
> "Tuhin Sinha" <tk.sinha at vanderbilt.edu> wrote in message
> news:1092770803.7177.11.camel at localhost...
> > Venkat,
> >
> >   As far as I know, there is no OpenGL/GLU NURBS support in VTK.  I
> > think one reason for this is because Windows doesn't support GLU 1.3
> > (which contains the NURBS tessalator API) out of the box.  Having said
> > that, I can't see why VTK won't support a home-grown NURBS
> > implementation via vtkProgrammableSource.
> >
> > Hope this helps,
> >
> > Tuhin Sinha
> >
> > On Tue, 2004-08-17 at 13:18, Vijay wrote:
> > > I have seen many postings regarding whether there is
> > > NURBS surface modeling capability using vtk but there
> > > has been no clear answer. I would be thankful if
> > > somebody could answer that. If so, is there any
> > > documentation available online?
> > > Thanks,
> > > Venkat
> > >
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> 
> 
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