In regards to this & your previous email, look at the documentation for the vtkVolumeProperty ( <a href="http://www.vtk.org/doc/nightly/html/classvtkVolumeProperty.html">http://www.vtk.org/doc/nightly/html/classvtkVolumeProperty.html
</a> ). Specificaly the "IndependentComponentsOn/Off" methods.<br><br>You can map colors to a single component (through a lookup table), 2-component (RGB and Opacity), or 4 component (Each of the 4 separately) by setting IndependentComponentsOff .
<br><br><div><span class="gmail_quote">On 8/1/06, <b class="gmail_sendername">Yixun Liu</b> <<a href="mailto:yxliu@fudan.edu.cn">yxliu@fudan.edu.cn</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div bgcolor="#ffffff">
<div><font face="Bookman Old Style">Hi,</font></div>
<div><font face="Bookman Old Style"></font> </div>
<div><font face="Bookman Old Style">I have a 256x156x100 color image with 4
components. How does vtkFixedPointVolumeRayCastMapper distinguish the four
components are denpendent or not?</font></div>
<div><font face="Bookman Old Style"></font> </div>
<div><font face="Bookman Old Style">Sincerely,</font></div>
<div><font face="Bookman Old Style"></font> </div>
<div><font face="Bookman Old Style">Yixun Liu</font></div></div>
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