Hi<div>Thanks, but this simply colours the polydata surface with the values of the unstructured grid. I want to cut all the data in the unstructured grid that lies below the polydata, but keep all the cells that lie above, not just extract the polydata surface<br>
<br><div class="gmail_quote">On Tue, Nov 30, 2010 at 7:04 PM, Moreland, Kenneth <span dir="ltr"><<a href="mailto:kmorel@sandia.gov">kmorel@sandia.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<font face="Calibri, Verdana, Helvetica, Arial"><span style="font-size:11pt">You can use the Resample With Dataset filter to apply the field values of the unstructured grid to the surface of the poly data. It is roughly equivalent to intersecting the unstructured grid with the surface.<br>
<br>
-Ken<div><div></div><div class="h5"><br>
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<br>
On 11/30/10 10:17 AM, "james ramm" <<a href="http://jamessramm@gmail.com" target="_blank">jamessramm@gmail.com</a>> wrote:<br>
<br>
</div></div></span></font><div><div></div><div class="h5"><blockquote><font size="2"><font face="Arial"><span style="font-size:10pt">Hi<br>
I use paraview 3.8.1 to visualize geophysical data. My data are arranged<br>
as an unstructured grid of cell data. This gives an image of resistivity<br>
(the colour value) in 3 dimensions.<br>
I also have another image giving the maximum depth to which I can trust<br>
the previous data. This is a polydata dataset of point data, where the<br>
points are simply the depths.<br>
<br>
Is it possible to clip or threshold my original image (the unstructured<br>
grid) according to the depths given in the polydata? I.e cut away any<br>
data in the original image that is below xx depth, where xx is given in<br>
the polydata surface?<br>
<br>
Thanks<br>
James R <br>
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**** Kenneth Moreland<br>
*** Sandia National Laboratories<br>
*********** <br>
*** *** *** email: <a href="http://kmorel@sandia.gov" target="_blank">kmorel@sandia.gov</a><br>
** *** ** phone: (505) 844-8919<br>
*** web: <a href="http://www.cs.unm.edu/~kmorel" target="_blank">http://www.cs.unm.edu/~kmorel</a><br>
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