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<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'>I don’t
recall ever seeing anything of that nature with the contour filter. Perhaps
something is going wrong with the surface reconstruction algorithm. I have not
played with it a lot, but the artifacts you describe sound like those that
could be generated if the surface reconstruction does not generate consistent
normals.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'>It might be
helpful to see your data. Is there any way you could post it?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'>-Ken<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=maroon face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:maroon'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
paraview-bounces@paraview.org [mailto:paraview-bounces@paraview.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Chris Cameron<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, August 25, 2008 8:49
AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">paraview@paraview.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Paraview]
vtkContourFilter generates two contours when requesting only one</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hello,<br>
<br>
I'm using Paraview off cvs somewhere between 3.3 and the latest head.<br>
<br>
I have an Image (Uniform Rectilinear Grid) of 334170 cells and 349600 points. I
have a point Data Array called "Distance" which was obtained using a
surface reconstruction algorithm. I ran the Filters->Common->Contour on
the Image Data and asked for an Isosurface at value 0 for "Distance".
<br>
<br>
The output I get is both that contour that looks correct at distance 0, and a
second contour that is decidedly less accurate (very blocky looking) that
'wraps' the correct contour. In other cases I have had the opposite happen,
that is, the correct contour wraps the less accurate contour. <br>
<br>
Is this the intended output? I expected to only receive one contour if I only
put in one value for Isosurface.<br>
<br>
Thank You,<br clear=all>
<br>
-- <br>
Chris Cameron<br>
Mirarco Mining Innovation - e2vo<br>
705-675-1151<br>
x5113 <o:p></o:p></span></font></p>
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