pro colorbry, red, green, blue ; Color table with blue-red-yellow-white scale common colors, r_orig, g_orig, b_orig, r_curr, g_curr, b_curr red=fltarr(256) & green=fltarr(256) & blue=fltarr(256) r=fltarr(14) & g=fltarr(14) & b=fltarr(14) r=[0.0, 0.0, 0.2, 0.4, 0.6, 0.8, 0.9, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0] g=[0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.2, 0.4, 0.6, 0.8, 0.9, 1.0] b=[0.0, 0.8, 1.0, 1.0, 0.9, 0.6, 0.3, 0.1, 0.0, 0.0, 0.0, 0.0, 0.0, 0.9] n=!d.table_size-1 re=interpol(r,n) gr=interpol(g,n) bl=interpol(b,n) red(0:n-1)=re green(0:n-1)=gr blue(0:n-1)=bl red(0)=0. green(0)=0. blue(0)=0. red(n:255)=1. green(n:255)=1. blue(n:255)=1. red=bytscl(red) green=bytscl(green) blue=bytscl(blue) tvlct,red,green,blue r_orig=red g_orig=green b_orig=blue r_curr=red g_curr=green b_curr=blue return end