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<DIV><FONT size=2 face=Arial>Hi all,</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Colour mapping a line of 1D cells using
float point scalars and InterpolateScalarsBeforeMappingOn(), shows
colours which are much darker than expected. The line width is exaggerated to
illustrate the effect and a scalar bar actor shows the expected colour
range.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial><IMG border=0 hspace=0 alt="" align=baseline
src="cid:BAA7199E85F64AF9A9170CFABDAB299C@pafec5"></FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>There are no problems with
InterpolateScalarsBeforeMappingOff().</FONT><IMG
style="WIDTH: 515px; HEIGHT: 105px" border=0 hspace=0 alt="" align=baseline
src="cid:4E0F27AC865A4BC3BBBB850A58F702B3@pafec5" width=448 height=138></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Interestingly, if the actor colour is set to
white(it is green above), the colours are correct. If the actor colour is set to
black, all the cells are black. I have not noticed any similar problems
with 2D cells. </FONT><FONT size=2 face=Arial> I am using VTK
5.4.2 & VS2008 build.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Any help in resolving this problem would be
much appreciated.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>Thanks for your time.</FONT></DIV>
<DIV><FONT size=2 face=Arial></FONT> </DIV>
<DIV><FONT size=2 face=Arial>John.</FONT></DIV></BODY></HTML>