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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi chen,</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>From what I understand, your output polydata
as the modified points but not the cells</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Try doing this:</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>outputPolyData-&gt;SetPolys( InputPolyData-&gt;GetPolys(
) );</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>it should work for most polygonal cells
(as opposed to edge cells, point cells, strip cells, &#8230;) Even Better, you
do not copy, you just pass the pointer to the cell array and thus should not increase
memory consumption.</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>if it does not work, send me your code.</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Alex.</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>&nbsp;</span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b>
vtkusers-bounces+agouaillard=slb.com@vtk.org
[mailto:vtkusers-bounces+agouaillard=slb.com@vtk.org] <b><span
style='font-weight:bold'>On Behalf Of </span></b>Dongqing Chen<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, December 13, 2006
1:16 PM<br>
<b><span style='font-weight:bold'>To:</span></b> vtkusers@vtk.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [vtkusers] change the
coordinates of some vertices.</span></font></p>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>&nbsp;</span></font></p>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Dear All:</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>&nbsp;</span></font></p>

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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>&nbsp;&nbsp;&nbsp; How could I only
change coordinates of some points on mesh surface, and keep the topology of
polypdata?</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>&nbsp;</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>&nbsp;&nbsp; I created a new
polydata, in which I only&nbsp;changed the coordinates of some points. I can
visualize the polydata, but can not generate the mesh surface on the new
polydata.</span></font></p>

</div>

<div>

<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>&nbsp;</span></font></p>

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<div>

<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>&nbsp;&nbsp;Any advice on this?</span></font></p>

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<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>&nbsp;</span></font></p>

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<p class=MsoNormal style='margin-left:.5in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Best Wishes,<br>
-----------------------------------------------------------------<br>
Dongqing Chen<br>
Ph.D Research Assistant<br>
Rm. 07, Paul C. Lutz Hall<br>
Computer Vision &amp; Image Processing (CVIP) Lab<br>
Department of Electrical &amp; Computer Engineering<br>
Speed School of Engineering<br>
University of Louisville<br>
Louisville, KY. 40292<br>
U.S.A<br>
Email: <a href="mailto:dqchen@cvip.louisville.edu">dqchen@cvip.louisville.edu</a><br>
Phone:+1-502-852-2789 (Lab)<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
+1-502-852-6130 (Office)<br>
-----------------------------------------------------------------</span></font></p>

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