<div dir="ltr"><div>Dear All ,</div>
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<div>1. How to convert vtkvolume and vtkimagedata to vtkpolydata </div>
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<div>2.while running the following  code , a warning appear :</div>
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<div>Generic Warning: In m:\dev\cur\vtkdotnet\branch\50\Common\vtkMath.cxx, line 394</div>
<div>Unable to factor linear system:</div>
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<div>vtkSphereSource ^sphere = gcnew vtkSphereSource();<br>     sphere-&gt;SetRadius(1.0);<br>     sphere-&gt;SetThetaResolution(18);<br>     sphere-&gt;SetPhiResolution(18);</div>
<div>   vtkStripper ^v = gcnew vtkStripper();<br>   v-&gt;SetInputConnection(sphere-&gt;GetOutputPort());<br>   v-&gt;Update();</div>
<div>   vtkDelaunay3D ^v3 = gcnew vtkDelaunay3D();<br>   v3-&gt;SetInputConnection(v-&gt;GetOutputPort());<br>   v3-&gt;Update()</div>
<div><br>   vtkDataSetMapper ^mapper = gcnew vtkDataSetMapper();<br>   mapper-&gt;SetInputConnection(v3-&gt;GetOutputPort());<br>   vtkActor ^triangulation = gcnew vtkActor();<br>   triangulation-&gt;SetMapper(mapper);<br>
   triangulation-&gt;GetProperty()-&gt;SetRepresentationToWireframe();</div>
<div>   // Create the standard rendering stuff.<br>   vtkRenderer ^ren1 = gcnew vtkRenderer();<br>   vtkRenderWindow ^renWin = gcnew vtkRenderWindow();<br>   renWin-&gt;AddRenderer(ren1);<br>   vtkRenderWindowInteractor ^iren = gcnew vtkRenderWindowInteractor();<br>
   iren-&gt;SetRenderWindow(renWin);</div>
<div>   // Add the actors to the renderer, set the background and size<br>   //<br>   ren1-&gt;AddActor(triangulation);<br>   ren1-&gt;SetBackground(1, 1, 1);<br>   renWin-&gt;SetSize(300, 300);<br>   renWin-&gt;Render();</div>

<div><br>   renWin-&gt;Render();</div>
<div>   iren-&gt;Initialize();</div>
<div><br>   iren-&gt;Start();</div>
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<div>any advice please</div></div></div>