93 lines
2.3 KiB
Gnuplot
93 lines
2.3 KiB
Gnuplot
reset;
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set terminal qt size 600,500
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po = -40;
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gamma = 1.4;
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rssi(dist) = po - 10*gamma*log(dist/1);
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getRSSI(x,y) = (dx=x-apx, dy=y-apy, dist=sqrt(dx*dx + dy*dy), rssi(dist));
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getRSSI2(x,y) = ( getRSSI(x,y) - ((y>w1)?(6):(0)) );
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prob(val, mu, sigma) = ( 1/(sigma*sqrt(2*pi)) * exp( -0.5 * ((val-mu)/sigma)**2 ) );
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unset xtics;
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unset ytics;
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s = 0.5;
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apx = 15;
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apy = 15;
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w1 = 17;
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wh = 1.2;
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ux = 2;
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uy = 5;
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#set colorbox user origin screen 0.9,0.5
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set origin -0.125,-0.125
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set size 1.18, 1.18
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#unset colorbox;
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unset cbtics;
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set xrange[0:30];
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set yrange[0:30];
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set cbrange[-40:-100];
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set isosamples 200;
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#set view equal xy
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set arrow 1 from apx-s,apy-s to apx+s,apy+s front nohead lw 2
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set arrow 2 from apx-s,apy+s to apx+s,apy-s front nohead lw 2
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set label 1 "AP" at apx+1,apy-0.5 front font ",20"
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#set object 1 circle at graph apx,apy radius graph 2 lc rgb "#000000" lw 1 front
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#set arrow 3 from ux-s,uy-s to ux+s,uy+s front nohead lw 2
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#set arrow 4 from ux-s,uy+s to ux+s,uy-s front nohead lw 2
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#set arrow 5 from apx,apy to ux,uy front nohead lw 1 dashtype 3
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set view map;
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set terminal pngcairo size 512,512
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# plot 1
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set label 2 "strong" font ",20" right at screen 0.973, 0.95
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set label 3 "weak" font ",20" right at screen 0.973, 0.03
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set output "wifi1.png"
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splot getRSSI(x,y) with pm3d notitle;
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# plot 2
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set output "wifi2.png"
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#set arrow 81 from 15,w2 to 30,w2 front nohead lw 4
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#set arrow 82 from 0,w1 to 30,w1 front nohead lw 10 lc rgb "#ffffff"
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set object 82 rectangle center apx,w1 size 30,wh front fillstyle solid fc rgb "#ffffff"
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set object 83 rectangle center apx,w1 size 30,wh front fillstyle pattern 4 fc rgb "#000000"
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splot getRSSI2(x,y) with pm3d notitle;
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unset cbrange;
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set palette rgb 33,13,10;
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#unset colorbox;
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# plot 3
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set label 2 "likely" font ",20" right at screen 0.973, 0.95
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set label 3 "unlikely" font ",20" right at screen 0.973, 0.03
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set output "wifi3.png"
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unset arrow 82;
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unset arrow 81;
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unset object 82;
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unset object 83;
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splot prob(-70, getRSSI(x,y), 4) with pm3d notitle;
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# plot 4
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set output "wifi4.png"
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#set arrow 81 from 15,w2 to 30,w2 front nohead lw 4
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#set arrow 82 from 0,w1 to 30,w1 front nohead lw 4
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set object 82 rectangle center apx,w1 size 30,wh front fillstyle solid fc rgb "#ffffff"
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set object 83 rectangle center apx,w1 size 30,wh front fillstyle pattern 4 fc rgb "#000000"
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splot prob(-70, getRSSI2(x,y), 4) with pm3d notitle;
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