[vtk-developers] LookupTable madness

[John Biddiscombe]

>I'll make the color tables my next VTK mini-project, the changes
>will be straightforward & won't break backwards compatibility
>(at least in the first iteration).

Excellent. Here's my 2c worth as well.

I'm deeply unhappy that the mapper's keep changing the scalar range of the 
lookup table/ Suppose I run some simulations and have 3 datasets containing 
field strengths. I generate a lookuptable and set the range up, then I have 
3 actors with 3 mappers and I have to set the scalar range of all 3 to 
match my lookup table. Otherwise they take matters into their own hands and 
change them. I like to share lookuptables amongst actors so that I can plot 
field strength over different ranges and just change one set of parameters 
- having to edit all 3 mapper is tedious....

Can we add a flag either to the mapper or the lookuptable which say. &*^&* 
off and stop changing my range?
Something like
SetMapperToUseLookupTableRange(int...)
or
SetLookupTableAsMaster (dodgy name, but it's my first go.)

Thanks

JB