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<DIV><FONT size=2>Guys</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I have a normalised vtk dataset (values from 0.0 to 1.0)
containing up to 500,000 scalar values that is written to a vtk
file.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>I need to plot this, using different user definable colours
(lookup table).</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2><U>Question</U></FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Is there anyway within a vtk file to specify a non-linear
lookup table?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>From my experiments, if you have say 10 colours in a lookup
table each "band" is 0.1</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>What I would like to say is, "set band 1 to plot between
1.0 to 0.5 and let the remaining 9 bands cover the 0.0 - 0.5
level".</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Make sense?</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Doesn't look to me that you can do this in a vtk file without
changing the data (ouch) OR adding many more than 10 colours to the lookup
table.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Many thanks for any pointers</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Julian Holt </FONT></DIV>
<DIV><FONT size=2><A
href="http://www.fatiguewizard.com">www.fatiguewizard.com</A></FONT></DIV></BODY></HTML>