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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi, I have the same problem,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">I want to smooth isolines extracted from vtkMarchingContourFilter (with the help of vtkImageReslice before) but vtkSmoothPolyDataFilter don’t work… (or I missuse
it).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">The goal is to avoid this display effect :
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><img width="671" height="383" id="Image_x0020_1" src="cid:image001.png@01CD22C7.E4329950"></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Anyone has an idea of how to use a smooth filter on an isoline ?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy">Vincent LEFORT</span></b><b><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:navy"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">De :</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> vtkusers-bounces@vtk.org [mailto:vtkusers-bounces@vtk.org]
<b>De la part de</b> Darshan Pai<br>
<b>Envoyé :</b> mardi 10 avril 2012 21:18<br>
<b>À :</b> pj gouttenoire<br>
<b>Cc :</b> vtkusers@vtk.org<br>
<b>Objet :</b> Re: [vtkusers] Fwd: Problem with vtksmoothPolyDataFilter<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt">Even with your setup it does not work . <o:p></o:p></p>
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<p class="MsoNormal">On Tue, Apr 10, 2012 at 4:27 AM, pj gouttenoire <<a href="mailto:goutteno@esrf.fr">goutteno@esrf.fr</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">i used vtkSmoothPolyDataFilter like this and it works.<br>
<br>
// Lissage de la surface<br>
vtkSmartPointer< vtkSmoothPolyDataFilter> smoothFilter = vtkSmartPointer<vtkSmoothPolyDataFilter>::New();<br>
smoothFilter->SetInput(isor->GetOutput());<br>
smoothFilter->SetNumberOfIterations(nbIteration);<br>
smoothFilter->SetRelaxationFactor(relFactor);<br>
smoothFilter->SetConvergence(convergence);<br>
smoothFilter->BoundarySmoothingOff ();<br>
smoothFilter->Update();<br>
<br>
<br>
Le 06/04/2012 23:34, Darshan Pai a écrit : <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">I still could not find debug this problem , pushing it up once again .
<o:p></o:p></p>
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<p class="MsoNormal">---------- Forwarded message ----------<br>
From: <b>Darshan Pai</b> <<a href="mailto:darshanpai@gmail.com" target="_blank">darshanpai@gmail.com</a>><br>
Date: Fri, Mar 2, 2012 at 2:03 AM<br>
Subject: Problem with vtksmoothPolyDataFilter<br>
To: <a href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a><br>
<br>
<br>
Hello All,<br>
<br>
I have been moving some of my old projects which are on VTK4.4 onto the new VTK nightly build .
<br>
Following is the code I am using <br>
<br>
vtkSmartPointer< <o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">vtkImageThreshold> renderThreshold = vtkSmartPointer<vtkImageThreshold>::New();<br>
renderThreshold->ThresholdBetween(0, 0);<br>
renderThreshold->SetInValue(0);<br>
renderThreshold->SetOutValue(1);<br>
renderThreshold->SetInput(ribbonsurface);<br>
<br>
vtkSmartPointer<vtkImageIslandRemoval2D> renderIslandRemoval2D1 = vtkSmartPointer<vtkImageIslandRemoval2D>::New();<br>
renderIslandRemoval2D1->SetInputConnection(renderThreshold->GetOutputPort());<br>
renderIslandRemoval2D1->SetAreaThreshold(100);<br>
renderIslandRemoval2D1->SetIslandValue(1);<br>
renderIslandRemoval2D1->SetReplaceValue(0);<br>
<br>
vtkSmartPointer<vtkImageIslandRemoval2D> renderIslandRemoval2D2 = vtkSmartPointer<vtkImageIslandRemoval2D>::New();<br>
renderIslandRemoval2D2->SetInputConnection(renderIslandRemoval2D1->GetOutputPort());<br>
renderIslandRemoval2D2->SetAreaThreshold(100);<br>
renderIslandRemoval2D2->SetIslandValue(0);<br>
renderIslandRemoval2D2->SetReplaceValue(1);<br>
<br>
vtkSmartPointer<vtkImageContinuousErode3D> renderContinuousErode3D = vtkSmartPointer<vtkImageContinuousErode3D>::New();<br>
renderContinuousErode3D->SetInputConnection(renderIslandRemoval2D2->GetOutputPort());<br>
renderContinuousErode3D->SetKernelSize(3, 3, 3);<br>
<br>
vtkSmartPointer<vtkImageContinuousDilate3D> renderContinuousDilate3D = vtkSmartPointer<vtkImageContinuousDilate3D>::New();<br>
renderContinuousDilate3D->SetInputConnection(renderContinuousErode3D->GetOutputPort());<br>
renderContinuousDilate3D->SetKernelSize(4, 4, 4);<br>
<br>
vtkSmartPointer<vtkContourFilter> renderContourFilter = vtkSmartPointer<vtkContourFilter>::New();<br>
renderContourFilter->SetInputConnection(renderContinuousDilate3D->GetOutputPort());<br>
renderContourFilter->SetValue(0,1);<br>
<br>
vtkSmartPointer<vtkSmoothPolyDataFilter> renderSmoothPolyDataFilter = vtkSmartPointer<vtkSmoothPolyDataFilter>::New();<br>
renderSmoothPolyDataFilter->SetInputConnection(renderContourFilter->GetOutputPort());<br>
renderSmoothPolyDataFilter->SetNumberOfIterations(20);<br>
renderSmoothPolyDataFilter->SetRelaxationFactor(0.15);<br>
renderSmoothPolyDataFilter->SetFeatureAngle(40);<br>
renderSmoothPolyDataFilter->FeatureEdgeSmoothingOff();<br>
renderSmoothPolyDataFilter->BoundarySmoothingOff();<br>
renderSmoothPolyDataFilter->SetConvergence(0);<br>
renderSmoothPolyDataFilter->Update();<br>
<br>
vtkSmartPointer<vtkPolyDataMapper> ribbonpolydata = vtkSmartPointer<vtkPolyDataMapper>::New();<br>
ribbonpolydata->SetInputConnection(renderSmoothPolyDataFilter->GetOutputPort());<br>
<br>
ribbonactor = vtkSmartPointer<vtkActor>::New();<br>
ribbonactor->SetMapper(ribbonpolydata);<br>
<br>
I have attached the output . It looks as if everything up until the rendercontourFilter generates the exact same output in VTK 4.4 and the current VTK<br>
<br>
But when I introduce the vtkSmoothPolyDataFilter , the output does not change . There is no smoothing on the polydata .
<br>
<br>
I cannot seem to pinpoint the problem . Hope someone can help<br>
<br>
Regards<span style="color:#888888"><br>
Darshan<br>
<br>
</span><o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
<br>
<o:p></o:p></p>
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Please keep messages on-topic and check the VTK FAQ at: <a href="http://www.vtk.org/Wiki/VTK_FAQ" target="_blank">
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