# set terminal pngcairo  transparent enhanced font "arial,10" fontscale 1.0 size 600, 400 
# set output 'hidden.4.png'
set border 4095 front lt black linewidth 1.000 dashtype solid
set grid nopolar
set grid noxtics nomxtics noytics nomytics ztics nomztics nortics nomrtics \
 nox2tics nomx2tics noy2tics nomy2tics nocbtics nomcbtics
set grid layerdefault   linecolor rgb "gray"  linewidth 0.200 dashtype solid,  linecolor rgb "gray"  linewidth 0.200 dashtype solid
set samples 20, 20
set isosamples 20, 20
set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover
set style data lines
set ztics  norangelimit -1.00000,0.5 ,1.00000
set title "Hidden line removal of explicit surfaces" 
set trange [ * : * ] noreverse nowriteback
set urange [ * : * ] noreverse nowriteback
set vrange [ * : * ] noreverse nowriteback
set xrange [ -3.00000 : 3.00000 ] noreverse nowriteback
set x2range [ * : * ] noreverse writeback
set yrange [ -3.00000 : 3.00000 ] noreverse nowriteback
set y2range [ * : * ] noreverse writeback
set zrange [ -1.00000 : 1.00000 ] noreverse writeback
set cbrange [ * : * ] noreverse writeback
set rrange [ * : * ] noreverse writeback
set colorbox vertical origin screen 0.9, 0.2 size screen 0.05, 0.6 front  noinvert bdefault
NO_ANIMATION = 1
splot sin(x) * cos(y)