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Re: Colour Tables

[Posted and mailed]

In article <7dfd41$48g$1@nnrp1.dejanews.com>,
	philaldis@geocities.com writes:
> Okay does anyone have a good routine for creating 
> colour tables - because I
> can't get xpalette to work. It is one of the most 
> unintuitive programs I've
> ever seen. The interpolating thing is quite random 
> and the fact that you have
> to keep moving off a square then back on to see 
> how it's chnaged is quite
> frankly very annoying.
> What I'd really want is nothing too fancy. The best 
> situation would be if it
> was like the screen you can get to someone from xpalette 
> where you add
> control points and stuff. Well if you could do that on a 
> plot which had range
> 000000 -> FFFFFF and then add the control points and the 
> prog used congrid to make the table.
> If no-one's written one then I think I'll do it. 
> Any suggestions? Have others
> had the same annoyances with xpalette?

Well, I've not used xpalette, but I do have an object that will 
create indexed color tables.  By default the object contains
a six color table, but you can define your own tables.  If you
want to select the colors interactively, then this won't help
you.  It will allow you to define a set of colors, then let
the user select from those colors.  See

Maybe this will help you, or perhaps you could subclass 
it to do what you want.

Robert S. Mallozzi                                       256-544-0887
                                                      Mail Code ES 84
Work: http://www.batse.msfc.nasa.gov/    Marshall Space Flight Center 
Play: http://cspar.uah.edu/~mallozzir/           Huntsville, AL 35812