! err721_color_levels
! 10/11/2017 ACM
! Ticket 2564, setting up color palette and levels for the second
! plot caused a STOP in PyFerret or in Ferret the gks error message
!    gsetcolourrep()   96 Colour is outside range [0,1]


let fcn = 0.5*COS(J[j=1:100]/30)+SIN(K[k=1:100]/20)
fill/pal=land_sea_values/lev=vc 7000*fcn

fill/pal=ocean_temp_bounds/lev=(-2,35,2) 18.5*fcn
