[vtkusers] Constrained triangulation for Delaunay2D

[Sylvain Jaume]

Indeed you need to define the boundary lines (for the polydata in
SetSource) to constrain your triangulation.

Sylvain

On Wed, 3 Oct 2001, Terence Lim wrote:

> 
> Thank you for your suggestion. To follow up on what you suggested, is the
> following correct?
> 
> vtkPoints *xyz =vtkPoints::New();
> xyz->InsertPoint(...);
> .
> .
> .
> vtkPolyData *PolyData = vtkPolyData::New();
> PolyData->SetPoints(xyz);
> vtkDelaunay2D *Delaunay = vtkDelaunay2D::New();
> Delaunay->SetInput(PolyData);
> Delanay->SetSource(PolyData);<--Will this input guarantee a constrained
> Delaunay Triangulation?
> 
> I not confident that this is the correct method to create a constrained
> triangulation as I had not defined any lines or polygons anywhere in my code
> and I am certain that it is neccessary to do so.  Any ideas would be greatly
> appreciated.
> 
> Thanks
> 
> -Terence
> 
> 
> -----Original Message-----
> From: Sylvain Jaume [mailto:jaume at tele.ucl.ac.be]
> Sent: October 3, 2001 12:32 AM
> To: Terence Lim
> Cc: vtkusers at public.kitware.com
> Subject: Re: [vtkusers] Constrained triangulation for Delaunay2D
> 
> 
> try SetSource in vtkDelaunay2D
> 
> Sylvain
> 
> On Tue, 2 Oct 2001, Terence Lim wrote:
> 
> > Hi,
> >
> > Can Delaunay2D perform constrained triangulation? I have gone through the
> > archives and it seems as though it cannot be done.  Am I wrong? If so,
> could
> > you please shed some light on how to do it?
> >
> > Thanks
> >
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> 
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