[vtkusers] vtkMarchingCubes

[Marwan Adada]

Hello,
I tried using these filters but for some reason I am not getting any change 
in the output, my code is:

vtkSmoothPolyDataFilter *Smooth = vtkSmoothPolyDataFilter::New();
		Smooth->SetInput(mcubes->GetOutput());
		Smooth->SetNumberOfIterations(10);
		Smooth->SetRelaxationFactor(1);
		Smooth->SetFeatureAngle(0);
		Smooth->FeatureEdgeSmoothingOn();
		Smooth->BoundarySmoothingOn();
		Smooth->SetConvergence(0);
		Smooth->ReleaseDataFlagOn();

Then I tried :
vtkWindowedSincPolyDataFilter *Smooth=vtkWindowedSincPolyDataFilter::New();
		Smooth->SetInput(mcubes->GetOutput());
		Smooth->GenerateErrorVectorsOn();
		Smooth->GenerateErrorScalarsOn();
		Smooth->Update();

And still no change, Any Ideas why this is happening??
Thanks in Advance...
Marc,

P.S Thanks Mathieu


>From: Mathieu Malaterre <Mathieu.Malaterre at creatis.insa-lyon.fr>
>To: Marwan Adada <adada_marwan at hotmail.com>
>CC: vtkusers at public.kitware.com
>Subject: Re: [vtkusers] vtkMarchingCubes
>Date: Wed, 23 Apr 2003 20:08:20 +0200
>
>http://www.vtk.org/doc/nightly/html/classvtkSmoothPolyDataFilter.html
>
>and
>http://www.vtk.org/doc/nightly/html/classvtkWindowedSincPolyDataFilter.html
>the later is not lagrangian -> no shrinkage !
>
>HTH
>mathieu
>
>Marwan Adada wrote:
>>Hello,
>>Now I converted my 8bit buffer to a 16bit buffer and sliced it, then 
>>passed it to vtkVolume16Reader and then to marching cubes, and I got the 
>>volume.  But my result is not smooth at all, I set the 
>>MarchingCube->ComputeNormalsOn(); and still the result is not smooth.
>>Is there any filter I can use to smooth the resulting output from marching 
>>cubes??
>>Thanks in advance
>>
>>Marc
>>
>>P.S Thanks james;
>>
>>>From: James Dessart <james at rogue-research.com>
>>>To: Marwan Adada <adada_marwan at hotmail.com>
>>>CC: vtkusers at public.kitware.com
>>>Subject: Re: [vtkusers] vtkMarchingCubes
>>>Date: Wed, 23 Apr 2003 13:58:55 -0400 (EDT)
>>>
>>>
>>>
>>>On Wed, 23 Apr 2003, Marwan Adada wrote:
>>>
>>> > I have an 8 bit volume data (205x233x251) that I need to pass to
>>> > vtkMarchingCubes.  I tried using vtkImageReader but it seems not to 
>>>work
>>> > with vtkMarchingCubes.  I tried vtkImageData and still couldn't pass 
>>>it to
>>> > vtkMarchingCubes.  I know vtkVolume16Reader works with 
>>>vtkMarchingCubes, but
>>> > my data 8bits not 16bits.  I am wondering what vtk 8bit Readers does
>>> > vtkMarchingCubes accepts, Any Ideas??
>>>
>>>What you could try would be to read it in as 16-bit values, and run
>>>marching cubes on that.  The values would be between 0-255, as 8-bit
>>>values generally are, but that shouldn't matter, if you specify your
>>>threshold for marching cubes properly.
>>>
>>>hope that helps,
>>>James
>>>
>>
>>
>>_________________________________________________________________
>>The new MSN 8: smart spam protection and 2 months FREE*  
>>http://join.msn.com/?page=features/junkmail
>>
>>_______________________________________________
>>This is the private VTK discussion list. Please keep messages on-topic. 
>>Check the FAQ at: <http://public.kitware.com/cgi-bin/vtkfaq>
>>Follow this link to subscribe/unsubscribe:
>>http://public.kitware.com/mailman/listinfo/vtkusers
>>
>
>
>--
>Mathieu Malaterre
>CREATIS
>28 Avenue du Doyen LEPINE
>B.P. Lyon-Montchat
>69394 Lyon Cedex 03
>http://www.creatis.insa-lyon.fr/~malaterre/
>


_________________________________________________________________
Add photos to your e-mail with MSN 8. Get 2 months FREE*. 
http://join.msn.com/?page=features/featuredemail