[vtkusers] Extracting the zero levelset curve in VTK

[Arne Hansen]

sorry for that last mail. What i meant to write was:
I have values lying around zero, not having the exact value 0.
So i need to find the pixels that are involved in a zerocrossing.
Reading from the docs of the contourfilter it seems that i here can only set
a series of discrete values, and not a interval of some sort to draw the
contour.

So if i am not much mistaken this cannot find zerocrossings, but only show
specified values. Correct?

Thank you


2007/1/10, Arne Hansen <bsd.diverse at gmail.com>:
>
> Ahh yes okay. Is it able to determine zerocrossings as well?
> Because i dont suspect to have an
>
> 2007/1/10, Dominik Szczerba <domi at vision.ee.ethz.ch>:
> >
> > Look at the countour filter.
> >
> > --DS
> >
> > Arne Hansen wrote:
> > > Hello. In the ITK package there is a filter called
> > > itk::ZeroCrossingImageFilter which is able to extract the
> > zero-levelset
> > > curve in a levelset.
> > > I need to be able to do this in vtk, so my question is if there is a
> > > similar method in VTK that can be used for this purpose. Thank you in
> > > advance.
> > >
> > >
> > >
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