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<p class="x_MsoNormal"><span lang="EN-US">Yes, those examples are good starting points. You can use image math filter to compute min/max (intersection/union) and create mesh from image using contour filter.</span></p>
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<p class="x_MsoNormal">Andras</p>
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<p class="x_MsoNormal" style="border:none; padding:0cm"><b>From: </b><a href="mailto:juch@zhaw.ch">normanius</a><br>
<b>Sent: </b>May 16, 2016 18:27<br>
<b>To: </b><a href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</a><br>
<b>Subject: </b>Re: [vtkusers] vtkBooleanOperationPolyDataFilter creates non-manifold edges</p>
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<div class="PlainText">Hi Andras,<br>
Hi Cory<br>
<br>
Thanks for your answers. <br>
<br>
@Andras: Do you mean poly-data to image conversion like this<br>
<<a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToImageData">http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToImageData</a>> ?<br>
Haven't ever used image data in vtk. Could you briefly sketch how to apply<br>
boolean operations on (3d) image data and how to generate a mesh from that.<br>
I guess this<br>
<<a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToImageData">http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/PolyDataToImageData</a>>
<br>
example is a starting point, right?<br>
<br>
@Cory: Wow, I can't wait for vtkBooleanOperationPolyDataFilter2. I checked<br>
out that branch updega2/vtk-new_intersection, but could not see any<br>
difference with the output. Is there something special I need to do to<br>
enable Adam's new filter? (Because there is no class named<br>
vtkBooleanOperationPolyDataFilter2, I assumed that the former<br>
vtkBooleanOperationPolyDataFilter was re-written.)<br>
<br>
As an alternative to vtkBooleanOperationPolyDataFilter: I sometimes use<br>
vtkImplicitFunction (vtkCylinder, vtkSphere, etc.), combine them with<br>
vtkImplicitBoolean and sample then with vtkSampleFunction. This is not<br>
always practicable however, because one gets visible artefacts on the<br>
borders, and also the meshes get quite large. (The work-around for the<br>
latter is to apply triangle decimation, see vtkDecimatePro).<br>
<br>
<br>
<br>
--<br>
View this message in context: <a href="http://vtk.1045678.n5.nabble.com/vtkBooleanOperationPolyDataFilter-creates-non-manifold-edges-tp5738088p5738108.html">
http://vtk.1045678.n5.nabble.com/vtkBooleanOperationPolyDataFilter-creates-non-manifold-edges-tp5738088p5738108.html</a><br>
Sent from the VTK - Users mailing list archive at Nabble.com.<br>
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