[vtkusers] Smoothing VTK mesh

[Alexandre GOUAILLARD]

hi jothy,

you want to decimate first then smooth.
for decimation I think the quadratic one is better.
for the smoothing, you should use windowsyncpolydata filter (from the
top of my hand). it is faster and it does not have the strong
shrinking effect lapacian smoothing has.

alex.


On Tue, Mar 15, 2011 at 6:57 PM, Jothy <jothybasu at gmail.com> wrote:
> Hi all,
>
> I have generated a mesh from DICOM RT Structure set, but the mesh
> looks too dense and the mesh has a step-like variation in the
> cranio-caudal direction (because of the finite slice thickness in the
> CT images used). I am using the pipeline as shown below
>
>
> vtkPolyData--->vtkPolyDataToImageStencil--->vtkImageStencil--->vtkMarchingCubes
> (I am using vtkLinearExtrusionFilter to extrude as well)
>
> Now, I looked into the src code of ITK snap which uses
> vtkImageSmoothgaussian, vtkDecimatePro and vtkSmoothPolyDataFilter ,
> but I am bit confused in using the right filter at the tight stage in
> the process.
>
> Any directions?
>
> Thank you
>
> Jothy
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