set parametric
set pm3d explicit
set palette rgb 32,-32,3
set ticslevel 0
set size square
unset key
unset colorbox
unset xtics
unset ytics
set yrange[-10:10]
set view 85,35,1.4,1.0
set title "Linux Penguin" 0,-8 font "bchb.pfa,34" tc lt 3
set term post eps color enhanced lw 2
set out 'penguin.eps'
splot 'penguin.dat' using  1:(sin(0.1*$2)):2  w lines lw 5 palette
!convert -transparent white penguin.eps penguin.png
!display penguin.png