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Пример 3D преобразования

#
# $Id: world.demo 3.38.2.6 1992/11/14 02:25:21 woo Exp $
#
#
set title "Gnuplot Correspondences"
set nokey
set noborder
set noyzeroaxis
set noxtics
set noytics
#
# модель Земли с неподвижными точками +
plot 'world.dat' with lines 3 4, 'world.cor' with points 1 2
set title ""
set key
set border
set yzeroaxis
set xtics
set ytics

#
# 3-х мерное изображение Земли в сферических координатах.
set angles degrees
set title "3D version using spherical coordinate system"
set view 70,40,,2.0
set mapping spherical
set parametric
set samples 32
set isosamples 9
set urange [-pi/2:pi/2]
set vrange [0:2*pi]
splot cos(u)*cos(v),cos(u)*sin(v),sin(u) with lines 5 6,\
'world.dat' with lines 3 4, 'world.cor' with points 1 2

#
# 3-х мерно изображение Земли в цилиндрических координатах.
set title "3D version using cylindrical coordinate system"
set view 70,40,,2.0
set mapping cylindrical
set parametric
set samples 32
set isosamples 9
set urange [-pi:pi]
set vrange [-90:90]
splot cos(u),sin(u),v with lines 5 6,\
'world.dat' with lines 3 4, 'world.cor' with points 1 2

#
# Очистка:
#
set noparametric
set mapping cartesian
set angles radians
set samples 100
set isosamples 10
set view 60,30,1,1
set xrange [-10:10]
set yrange [-10:10]
set zrange [-10:10]
set auto
set title "" 0,0