# set terminal pngcairo  background "#ffffff" enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'world.3.png'
set dummy u,v
set angles degrees
unset key
set arrow 1 from 0, 0, -1.2 to 0, 0, 1.2 head back nofilled linetype -1 linecolor rgb "cyan"  linewidth 2.000
set arrow 2 from -1.2, 0, 0 to 1.2, 0, 0 nohead back nofilled linetype -1 linecolor rgb "cyan"  linewidth 1.000
set arrow 3 from 0, -1.2, 0 to 0, 1.2, 0 nohead back nofilled linetype -1 linecolor rgb "cyan"  linewidth 1.000
set parametric
set view 70, 40, 0.8, 1.2
set samples 32, 32
set isosamples 9, 9
set mapping spherical
set hidden3d back offset 0 trianglepattern 3 undefined 1 altdiagonal bentover
set yzeroaxis linetype 0 linewidth 1.000
set ticslevel 0
set title "3D solid version with hidden line removal" 
set urange [ -90.0000 : 90.0000 ] noreverse nowriteback
set vrange [ 0.00000 : 360.000 ] noreverse nowriteback
splot cos(u)*cos(v),-cos(u)*sin(v),sin(u) with lines lc rgb "cyan" ,'world.dat' u 1:2:(1.001) with lines lc rgb "blue" , 'world.cor' with points lt 1 pt 2