Le wiki de Syracuse

====== Gnuplot In Action ====== **Site** : [[http://www.manning.com/janert/]] Les données utilisées sont celles qui sont décrites dans le livre de Philipp K. Janert et que vous trouverez dans une archive sur le site du livre. Toutes les figures du livre ne sont pas représentées ici... ===== Chapitre 1 ===== ==== Figure 1.1 ==== <code gnuplot> #!/usr/bin/gnuplot set t png set o "marathon.png" plot "marathon" using 1:2 with boxes </code> {{ :gnuplot:marathon.png }} ==== Figure 1.2 ==== <code gnuplot> #!/usr/bin/gnuplot set t png set o "dlacluster.png" unset border unset xtics unset ytics unset key set size square plot "dlacluster" using 2:3 with dots </code> {{ :gnuplot:dlacluster.png }} ===== Chapitre 5 ===== <code gnuplot> #!/usr/bin/gnuplot set t png set o "test.png" test </code> {{ :gnuplot:test.png }} ===== Chapitre 9 ===== ==== Planche couleur 1 ==== <code gnuplot> #!/usr/bin/gnuplot set t postscript eps color set o "palette-1.eps" set palette model RGB defined ( 0 "red", 0.5 "yellow", 1 "green" ) test palette </code> {{ :gnuplot:palette-1.png }} <code gnuplot> #!/usr/bin/gnuplot set t postscript eps color set o "palette-2.eps" set palette model RGB defined ( 0 "red", 0.1 "yellow", 1 "green" ) test palette </code> {{ :gnuplot:palette-2.png }} ==== Planche couleur 3 ==== <code gnuplot> #!/usr/bin/gnuplot set t postscript eps color set o "listing9-1.eps" unset key set view 90,0 # View from the side set isosamples 200,2 # Good resolution along x-axis, # few points along y-axis unset ytics # Not needed set xtics offset 0,-2 # Push tic marks down from default position set border 4095 # Turn on all borders set xyplane 0 # Center the plot within the bounding box set palette defined ( 0 'red', 0.25 'red', 0.5 'green', \ 1.5 'green', 1.75 'red', 2 'red') splot sin(x)**3 + 0.3*sin(5*x) w l palette </code> {{ :gnuplot:listing9-1.png }} ==== Planche couleur 5 ==== <code gnuplot> #!/usr/bin/gnuplot set t postscript eps color set o "fractal-1.eps" set pm3d set view map set size square unset surface set ytics 0.225,0.02,0.265 set xtics -0.745,0.02,-0.705 unset key set logscale cb set palette model RGB defined \ (log(15) 'white', log(20) '#ff6666', log(35) '#cc99cc', \ log(50) '#3366ff', log(100) '#99ffcc', log(133) '#339900', \ log(167) '#66ff33', log(200) '#996633', log(250) '#ff9900',\ log(300) '#ffff33', log(999) 'white', log(9900) 'white', \ log(9901) 'black', log(10000) 'black' ) splot "fractal" </code> {{ :gnuplot:fractal-1.png }} <code gnuplot> #!/usr/bin/gnuplot set t postscript eps color set o "fractal-2.eps" set pm3d set view map set size square unset surface set ytics 0.225,0.02,0.265 set xtics -0.745,0.02,-0.705 unset key set logscale cb blue = 2.0/3.0 green = 1.0/3.0 set palette model HSV defined \ ( log(15) blue 0.7 0.6, log(50) blue 0.6 0.9, \ log(100) green 0.5 1, log(200) green 0.7 0.5, \ log(1000) green 0.9 0.4, log(5000) 0 0 1, \ log(9900) 0 0 1, log(9901) 0 1 0, log(10000) 0 1 0 ) \ splot "fractal" </code> {{ :gnuplot:fractal-2.png }} ==== Figure 9.3 ==== <code gnuplot> #!/usr/bin/gnuplot set terminal postscript eps set o "fractal.eps" set pm3d set view map set size square unset surface set isosamples 300 set ytics 0.225,0.02,0.265 set xtics -0.745,0.02,-0.705 unset key set palette defined ( 0 'white', 10 'white', 225 'black', 1500 'white', 9999 'white', 10000 'black') splot "fractal" </code> {{ :gnuplot:fractal.png }}