# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'world.4.png'
set bar 1.000000 front
set style circle radius graph 0.02, first 0.00000, 0.00000 
set style ellipse size graph 0.05, 0.03, first 0.00000 angle 0 units xy
set dummy u, v
set angles degrees
unset key
set style textbox transparent margins  1.0,  1.0 border
unset logscale
set parametric
set view 70, 40, 0.8, 1.2
set samples 32, 32
set isosamples 13, 13
set mapping cylindrical
set hidden3d back offset 0 trianglepattern 3 undefined 1 altdiagonal bentover
set yzeroaxis
set xyplane relative 0
unset paxis 1 tics
unset paxis 2 tics
unset paxis 3 tics
unset paxis 4 tics
unset paxis 5 tics
unset paxis 6 tics
unset paxis 7 tics
set title "3D version using cylindrical coordinate system" 
set urange [ -180.000 : 180.000 ] noreverse nowriteback
set vrange [ -90.0000 : 90.0000 ] noreverse nowriteback
set paxis 1 range [ * : * ] noreverse nowriteback
set paxis 2 range [ * : * ] noreverse nowriteback
set paxis 3 range [ * : * ] noreverse nowriteback
set paxis 4 range [ * : * ] noreverse nowriteback
set paxis 5 range [ * : * ] noreverse nowriteback
set paxis 6 range [ * : * ] noreverse nowriteback
set paxis 7 range [ * : * ] noreverse nowriteback
set colorbox vertical origin screen 0.9, 0.2, 0 size screen 0.05, 0.6, 0 front  noinvert bdefault
x = 0.0
u = 0.0
## Last datafile plotted: "world.cor"
splot cos(u),sin(u),v with lines lc rgb "cyan" ,'world.dat' with lines lc rgb "blue" lw 2, 'world.cor' with points lt 1 pt 2