<div dir="ltr">Please include the mailing list in your replies so that everyone may benefit from the discussion.<div><br></div><div>I'm not sure I understand what you are seeing. Could you attach a small screen shot that shows the inside cells?</div><div><br></div><div>By the way, you should be able to use either vtkGeometryFilter or vtkDataSetSurfaceFilter, you don't need to use both (they do basically the same thing).</div><div><br></div><div>Thanks,</div><div>Cory</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Dec 20, 2016 at 10:33 AM, M. Jordan <span dir="ltr"><<a href="mailto:mjordan@live.at" target="_blank">mjordan@live.at</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
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<p>Thank you very much, I tried it but i think there are still some cells inside..<br>
<br>
</p>
<div>vtkSmartPointer<vtkDelaunay3D> delaunay3D =<br>
vtkSmartPointer<vtkDelaunay3D><wbr>::New();<br>
delaunay3D-><wbr>SetInputConnection(INPUT-><wbr>GetOutputPort());<br>
delaunay3D->Update();<br>
<br>
vtkSmartPointer<<wbr>vtkGeometryFilter> geometryFilter =<br>
vtkSmartPointer<<wbr>vtkGeometryFilter>::New();<br>
geometryFilter-><wbr>SetInputConnection(delaunay3D-<wbr>>GetOutputPort());<br>
geometryFilter->Update();<br>
<br>
vtkSmartPointer<<wbr>vtkDataSetSurfaceFilter> surfaceFilter2 =<br>
vtkSmartPointer<<wbr>vtkDataSetSurfaceFilter>::New(<wbr>);<br>
<div> surfaceFilter2->SetInputData(<wbr>geometryFilter>GetOutput());<br>
surfaceFilter2->Update();</div>
</div>
<br>
<p></p>
<p>What I am doing wrong?<br>
</p>
<br>
<div style="color:rgb(0,0,0)">
<hr style="display:inline-block;width:98%">
<div id="m_-3683828351980297428divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>Von:</b> Cory Quammen <<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.com</a>><br>
<b>Gesendet:</b> Montag, 19. Dezember 2016 16:16<br>
<b>An:</b> M. Jordan<br>
<b>Cc:</b> <a href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a><br>
<b>Betreff:</b> Re: [vtkusers] Get only surface of vtkDelaunay3D output</font>
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<div dir="ltr"><span class="">To get the surface, add a vtkDataSetSurfaceFilter after vtkDelaunay3D:
<div><br>
</div>
<div><a href="http://www.vtk.org/doc/nightly/html/classvtkDataSetSurfaceFilter.html" id="m_-3683828351980297428LPlnk756057" target="_blank">http://www.vtk.org/doc/<wbr>nightly/html/<wbr>classvtkDataSetSurfaceFilter.<wbr>html</a></div>
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<a id="m_-3683828351980297428LPUrlAnchor_14822477495030.6333810454597664" style="text-decoration:none" href="http://www.vtk.org/doc/nightly/html/classvtkDataSetSurfaceFilter.html" target="_blank">VTK: vtkDataSetSurfaceFilter Class Reference</a></div>
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<a href="http://www.vtk.org" target="_blank">www.vtk.org</a></div>
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virtual void SetPieceInvariant If PieceInvariant is true, vtkDataSetSurfaceFilter requests 1 ghost level from input in order to remove internal surface that are ...</div>
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<div>HTH,</div>
<div>Cory</div>
</div><span class="">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Dec 18, 2016 at 8:50 AM, M. Jordan <span dir="ltr">
<<a href="mailto:mjordan@live.at" target="_blank">mjordan@live.at</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div id="m_-3683828351980297428m_6412541919012646638divtagdefaultwrapper" dir="ltr" style="font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Hello guys,<br>
<br>
i computed the <span class="m_-3683828351980297428m_6412541919012646638st">alpha shape of a polydata object with
<span>vtkDelaunay3D</span>. Without an alpha value i got a well looking convex hull.<br>
But when I am computing the alpha shape there are also some elements inside of the needed hull.<br>
<br>
How can I get the surface/hull of the Delaunay3D output?<br>
<br>
Thank you!<br>
<em></em></span><br>
</p>
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<div class="m_-3683828351980297428gmail_signature">Cory Quammen<br>
Staff R&D Engineer<br>
Kitware, Inc.</div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Cory Quammen<br>Staff R&D Engineer<br>Kitware, Inc.</div>
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