[vtkusers] Smoothing VTK mesh

[Jothy]

Thanks!

I am already using vtkWindowSyncPolyDataFilter, now the mesh appears
much smoother. Do you think still the decimatePro will imporve the
results?

Another problem is, I am not able to color the meshes it set some
default color (may be coloring according to scalars).

How do I turn it off and set my own color by
actor->GetProperty()->SetColor(R,G,B)

Thanks

Jothy

On Tue, Mar 15, 2011 at 12:30 PM, Alexandre GOUAILLARD
<agouaillard at gmail.com> wrote:
> 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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