[vtkusers] Extracting a Boundary Surface

[R T]

Dear vtkusers,
I am new to vtk, and probably,
my problem has a very trivial solution.
(Although I couldn't find it
in the manual or in the archives).
I am trying to extract an isosurface from a volume (skin from
a CT or MRI dataset)with a vtkContourFilter

vtkContourFilter *cf = vtkContourFilter::New();
		cf->SetInput(id);
		cf->SetValue(0,60);
		cf->SetNumberOfContours(1);

I need a triangle mesh of skin
and I am getting  a lot of points and cells inside that mesh.
How does one get rid of interior and   output just
a triangular mesh of the skin?
I 'll greatly appreciate your help.
Respectfully,
Roma


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