pm3d palette question

[Philipp K. J. <ja...@ie...>]

Here is my question (in short):
Is it possible to adjust the slice of the spectrum
shown in the colorbox without affecting the mapping
of colors to z-values?

Here is what I try to do:

Say, I want to plot some data, the values of which
are in the range [0:100], and I want to show ALL 
the values, therefore: set zrange [0:100]

Now I have a very skewed palette, like so:
set palette defined ( 0 'red', 1 'white', 100 'blue' )

For convenience, the index in the colorbox maps
directly to the z-value.

Now I want to show in the colorbox only those colors
that map to z-values between 0 and 10, without
affecting the mapping!

Is there a way to do this?

Using set cbrange [0:10] will not do it, because this
affects the mapping. It will associate "blue" with the
z-value 10 and adjust all the intermediate values
accordingly. That's not what I am trying to do.

Any suggestions?

Best,

		Ph.