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Re: [ferret_users] Customized palette
Tony,
| 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.
So, you want the white near zero values whatever the entire contouring
range is. I guess that's a tall order.
You could normalize your variable in such a way as to bring zero to the
center:
let newvar = if var gt 0 then var/maxpos else var/maxneg
fill/palette=whatever_centered newvar
when var's range is (-maxneg, maxpos).
But in this case, you would have to fix the colorbar manually.
Regards,
Ryo
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