26 lines
686 B
Gnuplot
26 lines
686 B
Gnuplot
set ylabel "$\\ell_1$" norotate
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set xlabel "$\\ell_0$"
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# default output canvas size: 12.5cm x 8.75cm
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set term lua tikz size 8,6 standalone
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unset key
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set pointsize 1
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# color functions
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rgb(r,g,b) = 65536 * int(r) + 256 * int(g) + int(b)
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color(x) = rgb(x*255, 0 , (1-x)*255)
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# get min/max
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set yrange [-1000:1000]
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stats "sd_vector_field.dat" u (log10(sqrt(($3-$1)**2+($4-$2)**2)))
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set xrange [-1:0.5]
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set yrange [-0.4:0.4]
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rescale=40
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plot "sd_vector_field.dat" u 1:2:(($3-$1)/sqrt(($3-$1)**2+($4-$2)**2)/rescale):(($4-$2)/sqrt(($3-$1)**2+($4-$2)**2)/rescale):(color((log10(sqrt(($3-$1)**2+($4-$2)**2))-STATS_min)/(STATS_max-STATS_min))) with vec filled head linecolor rgb variable
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