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Re: [ferret_users] Customized palette
Hi Andy,
Thanks! But that (percentage method) only works when you use
lev=(-a,a,b). If 0 is not in the middle of your value range, it does not
work to show 0 as white.
Tony
On Thu, 2010-10-21 at 08:59 -0600, Andy Jacobson wrote:
> Hi Tony,
>
> Did you try light_centered.spk or white_centered.spk? If you don't like those, my memory is that you can define a palette with just three colors (white and the two endpoints), and ferret will interpolate.
>
> -Andy
>
>
> On Wed 20 Oct 2010, at 19:31 , Jian Ma wrote:
>
> > Hi All,
> >
> > There are 3 methods in Ferret to define new pal files. However, I found
> > no way to define one like this:
> >
> > White near 0, dark red on maximum, and blue on minimum.
> >
> > I know I can use blue_darkred to achieve this when I have proper level
> > values or change the percentage values in the pal file, but is there any
> > method to make a universal pal file to self adjust correctly about 0?
> >
> > The last method is to write a fortran program to generate files, given
> > particular level values.
> >
> > Many thanks,
> > Tony
> >
> >
>
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