[vtkusers] Margin around surfaces

[Jothy]

Has anyone have any idea about how to do this?

Thanks

Jothy

On Thu, Sep 1, 2011 at 9:41 AM, Jothy <jothybasu at gmail.com> wrote:

> Hi all,
>
> I am trying to expand surfaces(isotropically/anisotropically) generated
> from vtkDiscreteMarchingCubes. I used this as reference
> http://www.mlahanas.de/CompGeom/Margins.htm.
>
> It works well for more or less regular volumes. But for irregualr
> structures it doesn't work properly. For example, spinal cord (looks in "C"
> shape in sagittal view) it doesn't expand in the anterior direction. I even
> tweaked the sigma in vtkThinPlateSplineTransform.
>
> Any hints?
>
> Thanks
>
> Jothy
>
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