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https://github.com/KevinMidboe/linguist.git
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47 lines
2.1 KiB
Gnuplot
47 lines
2.1 KiB
Gnuplot
# set terminal pngcairo transparent enhanced font "arial,10" fontscale 1.0 size 500, 350
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# set output 'surface1.17.png'
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set dummy u,v
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set label 1 "increasing v" at 6, 0, -1 left norotate back nopoint offset character 0, 0, 0
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set label 2 "increasing u" at 0, -5, -1.5 left norotate back nopoint offset character 0, 0, 0
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set label 3 "floor(u)%3=0" at 5, 6.5, -1 left norotate back nopoint offset character 0, 0, 0
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set label 4 "floor(u)%3=1" at 5, 6.5, 0.100248 left norotate back nopoint offset character 0, 0, 0
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set arrow 1 from 5, -5, -1.2 to 5, 5, -1.2 head back nofilled linetype -1 linewidth 1.000
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set arrow 2 from -5, -5, -1.2 to 5, -5, -1.2 head back nofilled linetype -1 linewidth 1.000
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set arrow 3 from 5, 6, -1 to 5, 5, -1 head back nofilled linetype -1 linewidth 1.000
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set arrow 4 from 5, 6, 0.100248 to 5, 5, 0.100248 head back nofilled linetype -1 linewidth 1.000
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set parametric
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set view 70, 20, 1, 1
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set samples 51, 51
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set isosamples 30, 33
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set hidden3d back offset 1 trianglepattern 3 undefined 1 altdiagonal bentover
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set ztics -1.00000,0.25,1.00000 norangelimit
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set title "\"fence plot\" using single parametric surface with undefined points"
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set xlabel "X axis"
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set xlabel offset character -3, -2, 0 font "" textcolor lt -1 norotate
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set xrange [ -5.00000 : 5.00000 ] noreverse nowriteback
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set ylabel "Y axis"
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set ylabel offset character 3, -2, 0 font "" textcolor lt -1 rotate by -270
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set yrange [ -5.00000 : 5.00000 ] noreverse nowriteback
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set zlabel "Z axis"
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set zlabel offset character -5, 0, 0 font "" textcolor lt -1 norotate
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set zrange [ -1.00000 : 1.00000 ] noreverse nowriteback
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sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)
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GPFUN_sinc = "sinc(u,v) = sin(sqrt(u**2+v**2)) / sqrt(u**2+v**2)"
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xx = 6.08888888888889
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dx = 1.11
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x0 = -5
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x1 = -3.89111111111111
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x2 = -2.78222222222222
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x3 = -1.67333333333333
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x4 = -0.564444444444444
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x5 = 0.544444444444445
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x6 = 1.65333333333333
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x7 = 2.76222222222222
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x8 = 3.87111111111111
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x9 = 4.98
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xmin = -4.99
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xmax = 5
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n = 10
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zbase = -1
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splot [u=.5:3*n-.5][v=-4.99:4.99] xmin+floor(u/3)*dx, v, ((floor(u)%3)==0) ? zbase : (((floor(u)%3)==1) ? sinc(xmin+u/3.*dx,v) : 1/0) notitle
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