[vtkusers] displaying simple polygons

Xavi Almolda xavi.almolda at gmail.com
Mon Nov 2 12:18:02 EST 2009


Problem solved using tkFeatureEdges.

Thank you very much.

Xavi

On Mon, Nov 2, 2009 at 6:03 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> vtkFeatureEdges will do it.
> BoundaryEdgesOn()
> FeatureEdgesOff()
> ManifoldEdgesOff()
> NonManifoldEdgesOff()
>
>
>
> On Mon, Nov 2, 2009 at 11:58 AM, David Doria <daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>>
> wrote:
> > On Mon, Nov 2, 2009 at 9:10 AM, Xavi Almolda <xavi.almolda at gmail.com>
> wrote:
> >> Thanks for your answer,
> >> Yes, I have already read the information on this page.
> >> The problem I have is that I need to tesselate the non-convex polygons.
> I am
> >> using a vtkTriangleFilter and it works fine, but I need to display the
> edge
> >> of the original polygon, and after the tesselation I have a lot of
> triangles
> >> each with its edges. Do I need to create another vtkCellArray with a
> >> vtkPolyline cell? Is there another way to get and display the edge of
> the
> >> resulting set of triangles?
> >> Thank you,
> >> Xavi
> >>
> >
> > Lets try to simplify the problem. Basically you have a triangle mesh
> > (can you provide one so we can play with it) and you want to highlight
> > the boundary edges? Is this correct?
> >
> > Thanks,
> >
> > David
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