Produit domaine public
- http://www.cs.dartmouth.edu/gnuplot_gnuplot_info.html
- dartmouth.edu:/pub/gnuplot/nuplot3.5.tar.Z
- irisa.irisa.fr : /pub/gnuplot
- news : comp.graphics.gnuplot
- http://fg70.rz.uni-karlsruhe.de/~ig25/gnuplot-faq/
- rhodes : /usr/local/pub/bin
- user guide : /usr/local/pub/docs/gnuplot
- Utilitaires de tracé par des commandes
- Disponibles sur UNIX, MSDOS, VMS
- Représentation de fonctions 2D
- Représentation de surface 3D z=f(x,y)
- Support de différents types de terminaux
The "GNU" in gnuplot is NOT related to the Free
Software Foundation, the naming is just a
coincidence
gnuplot
set options
plot { ranges } { <function> | { "<datafile>" ...}
splot { ranges } { <function> | {"<datafile>" ....}
plot sin(x)
help
Help topics available:
autoscale binary-data bugs cd
clear comments copyright environment
exit expressions help introduction
line-editing load pause plot
reread save set shell
.....
plot cos(x)
plot[-3:3] x**2
plot avec intervalle
set xrange[-5:5]
set yrange[0.5:1]
plot 1/(1+x**2)
plot avec label
set xlabel "axe X"
set ylabel "axe Y"
set title "Exemple GNUPLOT
plot [-2*pi:2*pi] sin(x)
set parametric
plot t,sin(t)/t title "t,sin(t)/t or sin(x)/x"
plot sin(t)/t,t
set parametric
dummy variable is t for curves, u/v for surfaces
plot sin(t),cos(t)
Tracé élementaire
splot [-3:3] [-3:3] x**2+y**2
set samples 10
set grids
plot x**2+y**2 with points
Avec commentaires et
illustrations
set xtics ("low" -5, "mid" 0, "high" 5)
set ytics -5.,1,5
set ztics (5,.,25,50,75,100,150,200)
show xtics
tics are IN, ticslevel is 0.5
x-axis tic labelling is list ("low" -5, "mid" 0, "high"5
set hidden
splot x**2+y**2
Avec choix de l'orientation
set dummy u,v
set xlabel "Axe X"; set ylabel "Axe Y"
set zlabel "axe Z" -5
set zrange [-1:1]
set label 1 "Valeur 1 " at -5,-2,0.75 right
set hidden3d
set arrow 1 from -5,-2.1,0.75 to 0,0,1
sinc(u,v) = sin(sqrt(u**2+v**2)) /sqrt(u**2+v**2)
splot [-5:5.01] [-5:5.01] sinc(u,v)
set parametric
set isosamples 50,10
set hidden3d
set title "Parametric Sphere"
set urange [-pi/2:pi/2
set vrange [0:2*pi]
set view 45,50,,2.5
splot
cos(u)*cos(v),cos(u)*sin(v),sin(u)
Avec nb de niveaux
set contour
set cntrparam levels 10
splot x**2-y**2
151
Avec nb de niveaux et pas
set contour
set cntrparam levels incr -20,5,20
splot x**2-y**2
Avec valeurs des niveaux
set contour
set cntrparam levels discrete1,4,5,7,10
set hidden3d
splot x**2-y**2
Avec lignes de niveaux
set contour
set cntrparam levels 10
set nosurface
splot x**2-y**2
set cntrparam levels 10
plot cos(2*x)+ sin(x/3.5)
mu=3.5
plot cos(2*x)+ sin(x/mu)
f(x)= cos(2*x)+ sin(x/mu)
plot f(x)
f(x,mu)=cos(2*x)+ sin(x/mu)
save functions "fonction.dat
load "fonction.dat"
plot f(x,10)
set samples 5000
r = 1317
set xrange [0: 1]
set yrange [0: 1]
set format x "%3.2f"
set function style dots
plot rand(r)
gnuplot
!ls
plot `ex1.data'
save `cmd.gnuplot' ;load `cmd.gnuplot'
plot [-6:6] sin(x)
set terminal postscript
Terminal type set to `postscript
Options are `landscape monochrome dashed
"Helvetica" 14
set output "sin.ps"
repl
!lpr -Pqpr2 sin.ps
© CNRS-IDRIS 2012