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<DIV> </DIV>
<DIV><SPAN class=834112206-13092010>Hi,</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>I am trying to make a vtk lookuptable and
have problems understanding the class.</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>Can anyone explain me the difference between
TableRange, ValueRange and Number of colors?</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>I interpret it as follows:</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>-Number of Table values are the number of
entries in the lookup table but why or what is a Table Range? Shouldn't it be
the same as number of colors?</SPAN></DIV>
<DIV><SPAN class=834112206-13092010>-Value range is the range of the gray values
in the image (e.g. 0-255) </SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>Can anyone explain it to me, would be
great.</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>I am trying to make a Lookuptable which
mapps 0 to black and 1 to an arbitrary color which is transparent. I think i
could make it like this but it doesn't work:</SPAN></DIV>
<DIV><SPAN class=834112206-13092010></SPAN> </DIV>
<DIV><SPAN class=834112206-13092010>
<P>vtkLookupTable* poVtkLut = oMitkLut->GetVtkLookupTable();</P>
<P>poVtkLut->SetTableRange(<SPAN
class=834112206-13092010>0</SPAN>, <SPAN
class=834112206-13092010>1</SPAN>);</P>
<P>poVtkLut->SetAlphaRange(1.0, 0.0);</P>
<P>poVtkLut->SetValueRange(<SPAN
class=834112206-13092010>0</SPAN>, <SPAN
class=834112206-13092010>1</SPAN>);</P>
<P>poVtkLut->SetNumberOfTableValues(<SPAN
class=834112206-13092010>2</SPAN>);</P>
<P>poVtkLut->SetNumberOfColors(<SPAN class=834112206-13092010>2</SPAN>);</P>
<P>poVtkLut->Build();</P>
<P> </P>
<P><SPAN class=834112206-13092010>Any
suggestions?</SPAN></P></SPAN></DIV></BODY></HTML>