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<br>Hello,<div><br></div><div>Thanks for the information, it actually works, but with one little problem related to the Lookup Table. </div><div><br></div><div>I have defined it by setting a blue to red Hue Range, being 0 blue and 100 red. When I change the range values on the mapper, I get to hide the values below my minimum number, but the new range re-scales the lookup table, being the new minimum colored with blue (i.e., the minimum) and not with its previous color.</div><div><br></div><div>How can I avoid this rescaling?</div><div><br></div><div>Thanks again</div><div><br><hr id="stopSpelling">Date: Wed, 14 Jul 2010 11:08:31 +0100<br>Subject: Re: [vtkusers] Threshold in a volume<br>From: jothybasu@gmail.com<br>To: iliana_lancing@hotmail.com<br>CC: vtkusers@vtk.org<br><br><div dir="ltr">Try vtkPolyDataMapper()->SetScalarRange(yourMin,YourMax).<br><br><br>Jothy<br><br><div class="ecxgmail_quote">On Wed, Jul 14, 2010 at 11:05 AM, Iliana García Resines <span dir="ltr"><<a href="mailto:iliana_lancing@hotmail.com">iliana_lancing@hotmail.com</a>></span> wrote:<br>
<blockquote class="ecxgmail_quote" style="padding-left:1ex">
<div>
Hello,<div><br></div><div>I would like to know which is the best way of doing the following thing: I have a colored volume, with its values going from 0 to 100. I would like to given a float parameter, hide all the points with value below this parameter, and keep showing the rest of the points. I guess there is some way in VTK to do this, but I wonder if it is a vtk procedure itself, or maybe some flag in the mapper I am using.</div>
<div><br></div><div>Does someone knows how to perform this? I am using a vtkPolyDataMapper, which makes use of an own-defined Lookup Table.</div><div><br></div><div>Thanks in advance</div><div><br></div><div class="ecxhm"> <br>
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