<div>Hello John,</div>
<div> </div>
<div> thank you for your answer. Well, I don't think I have coincident cells, and at the moment I have taken the screenshots I didn't have any filter. I had just an unstructured grid with a property selected. BTW, I noticed that the effect disappears *only* when I rotate the grid in such a way that its upper surface is perpendicular to my eyes' view (parallel to the screen... I don't know how to explain it better...). But obviously I can not leave it always in that position...
</div>
<div> </div>
<div>Thank you for your suggestions.</div>
<div> </div>
<div>Andrea.<br><br> </div>
<div><span class="gmail_quote">On 4/3/06, <b class="gmail_sendername">John Platt</b> <<a href="mailto:jcplatt@dsl.pipex.com">jcplatt@dsl.pipex.com</a>> wrote:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">
<div style="DIRECTION: ltr">
<div>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hi Andrea,</span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Do you have any coincident cells with different scalars (some filters will merge points when they are very close).
</span></font></p></div>
<div style="DIRECTION: ltr"><span class="sg">
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </span></font></p>
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">John.</span></font></p></span></div>
<div style="DIRECTION: ltr"><span class="e" id="q_10a61dafd60d08f1_2">
<p><font face="Arial" color="navy" size="2"><span style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"> </span></font></p>
<p style="MARGIN-LEFT: 36pt"><font face="Tahoma" size="2"><span style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original Message-----<br><b><span style="FONT-WEIGHT: bold">From:</span></b> vtkusers-bounces+jcplatt=<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:dsl.pipex.com@vtk.org" target="_blank">
dsl.pipex.com@vtk.org</a> [mailto:<a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:vtkusers-bounces+jcplatt=dsl.pipex.com@vtk.org" target="_blank">vtkusers-bounces+jcplatt=dsl.pipex.com@vtk.org</a>]
<b><span style="FONT-WEIGHT: bold">On Behalf Of </span></b>Andrea Gavana<br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> 03 April 2006 15:06<br><b><span style="FONT-WEIGHT: bold">To:</span></b> <a onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:vtkusers@public.kitware.com" target="_blank">
vtkusers@public.kitware.com</a><br><b><span style="FONT-WEIGHT: bold">Subject:</span></b> [vtkusers] Strange VTK Behavior...</span></font></p>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">Hello NG,</span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> thanks to Amy, John, Goodwin and Prabhu I solved the problem of vtkThreshold (I think :-) ). Now everything seems OK, except one small thing. I have a vtkUnstructuredGrid in which I have some scalars. Now, irrespective of which scalar I am visualizing, I get strange visualization effects when I rotate/zoom the vtkUnstructuredGrid. For example and for comparison, please see the 2 pictures here:
</span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://xoomer.virgilio.it/infinity77/AlmostOK.JPG" target="_blank">
http://xoomer.virgilio.it/infinity77/AlmostOK.JPG</a></span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://xoomer.virgilio.it/infinity77/SomethingWrong.JPG" target="_blank">
http://xoomer.virgilio.it/infinity77/SomethingWrong.JPG</a></span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">They are showing exactly the same grid with the same scalars, but in the second one there are strokes of green that should not be there...
</span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">Does anyone know what I am doing wrong? May it be a light problem?</span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">Thank you very much for your help and suggestions.</span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt"> </span></font></p></div>
<div>
<p style="MARGIN-LEFT: 36pt"><font face="Times New Roman" size="3"><span style="FONT-SIZE: 12pt">Andrea.<br clear="all"><br>-- <br>"Imagination Is The Only Weapon In The War Against Reality."<br><br><a onclick="return top.js.OpenExtLink(window,event,this)" href="http://xoomer.virgilio.it/infinity77/" target="_blank">
http://xoomer.virgilio.it/infinity77/</a><br> </span></font></p></div></span></div>
<div style="DIRECTION: ltr"></div></div></blockquote></div><br><br clear="all"><br>-- <br>"Imagination Is The Only Weapon In The War Against Reality."<br><br><a href="http://xoomer.virgilio.it/infinity77/">http://xoomer.virgilio.it/infinity77/
</a><br>