<div>ahhh okay. that sounds great.</div>
<div>I was hoping I could also ask if there are any linear algebra functions in VTK, or if i have to download a seperate package such as boost to do my matrix and vector muliplications.</div>
<div> </div>
<div>In case you have not guessed already, what i want to do is to visualize a shape model i have built. So i have a meanshape, and a set of principal components, which i need to multiply on to its eigenvalues and add the result to the meanshape. Then i need to extract the zerolevelset, and visualize this isosurface in vtk.
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<div>So i think i know how to do all parts, except for the linear algebra. So do you recommend to use a lib such as boost to do these simple matrix operations, or is there an easier way?</div>
<div> </div>
<div>Thank you<br><br> </div>
<div><span class="gmail_quote">2007/1/10, Mark Gooding <<a href="mailto:mark.gooding@gmail.com">mark.gooding@gmail.com</a>>:</span>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">On 10/01/07, Arne Hansen <<a href="mailto:bsd.diverse@gmail.com">bsd.diverse@gmail.com</a>> wrote:<br>
<br>> So if i am not much mistaken this cannot find zerocrossings, but only show<br>> specified values. Correct?<br><br><br>No, the contour filter finds the iso-surface, regardless of whether<br>the any points exist at this value. So setting:
<br><br>ObjectContourFilter->SetValue(0,0)<br>(first value is contour id, second value is value of isosurface)<br><br>will set a contour for the zerocrossing.<br><br>I use a threshold first to set the implicit function to +/- 1 and then
<br>find the contour, but that is partly because I am running multiple<br>level-sets.<br><br>Cheers,<br><br>Mark<br>_______________________________________________<br>This is the private VTK discussion list.<br>Please keep messages on-topic. Check the FAQ at:
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