[vtkusers] How to visualize principal components on dataset

[Arne Hansen]

Well, yes i have distance maps. But my plan is to extract only a certain
level of this map ie. the zero levelset. This i can do in matlab. But I want
to do this for a series of levelsets, since i am varying the principal
modes.
So I actually need to find out how i can save like a series of 3D frames, so
that i can show an animation of these in VTK with an isosurface. Is this
possible?

Thank you

2007/1/4, Dominik Szczerba <domi at vision.ee.ethz.ch>:
>
> So what is your data.
> If you need to visualize different level sets of a distance map then a
> few contourings will do.
> --DS
>
> Arne Hansen wrote:
> > Hello. I have binary shapes, which i have aligned and transformed into
> > signed distance maps. I have then made a mean distance map, and created
> > a set of offset functions(offset from mean). Using these offset
> > functions i made a Principal component analysis to capture variation. My
> > next task is to visualize my 3D meanshape in VTK, and its
> > differentprincipal modes, where i multiply from 1 to 3 standard devians
> > on each mode, to see how the shape deforms.
> >
> >
> > Can anybody give me a hint as of how to visualize this in VTK?
> > Thank you very much :)
> >
> >
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