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plotscript
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# Copyright (c) 2019 Anton Semjonov
# Licensed under the MIT License
# general I/O and data options, find some stats
set datafile separator "," missing NaN
stats ARG1 using 6 name "PING"
stats ARG1 using 7 name "DOWNLOAD"
stats ARG1 using 8 name "UPLOAD"
set xdata time
set timefmt "%Y-%m-%dT%H:%M:%S.*Z"
# set output resolution and font size
# config with: gnuplot -e 'font = "Name, size"' -e 'resolution = 1920,1080' ...
if (!exists("font")) font = ",12";
if (!exists("resolution")) resolution = "1280,800";
resX = substr(resolution, 1, strstrt(resolution, ","));
resY = substr(resolution, strstrt(resolution, ",") + 1, strlen(resolution));
set terminal svg enhanced font font size resX,resY dynamic
set output ARG2
set multiplot
# manual margins for multiplot
set bmargin 5
set tmargin 4
set lmargin 18
set rmargin 12
# pick colors
rgb_download = "#00000080"
rgb_download_fade = "#702185ff"
rgb_download_text = "#00000080"
rgb_upload = "#00ff3371"
rgb_upload_fade = "#70ff3371"
rgb_upload_text = "#00ff3371"
rgb_ping = "#0070e000"
# check if bandwidth markers are given and scale to mbits
# config with: gnuplot -e 'marker_download = <mbit>' ...
if (exists("marker_download") && marker_download > 0) \
marker_download = marker_download * 1000000; \
dlmarker = 1; else dlmarker = 0;
if (exists("marker_upload") && marker_upload > 0) \
marker_upload = marker_upload * 1000000; \
ulmarker = 1; else ulmarker = 0;
# scaling of upload plot relative to download range
# config with: gnuplot -e 'upload_scale = <factor>' ...
if (exists("upload_scale") && upload_scale > 0 && upload_scale != 1) \
ulscale = upload_scale; else ulscale = 1.0;
# marker set for empty ranges
if (!(exists("empty_range") && empty_range == 1)) \
empty_range = 0;
# set specific xrange if bounds are given
if (empty_range != 1 && exists("xrange_from") && exists("xrange_to")) \
set xrange [xrange_from:xrange_to];
# ---------- plot 1/3: ping and labels ----------
# enable all titles and labels that need to be plotted once
set title "Speedtest Results\ngithub.com/ansemjo/speedtest-plotter"
set timestamp "plotted %F %T %Z"
set xlabel "Measurement Date"
set ylabel "Bandwidth" offset -13, 0
set xtics format "%Y-%m-%d\n%H:%M:%S" out
set key right top
# set upper ping range
pingrange = PING_mean + (3 * PING_stddev)
if (pingrange < 50) pingrange = 50;
# --> plot ping
unset ytics
unset yrange
set y2label "Ping"
set y2tics format "%.0f ms" nomirror out
set y2range [0:pingrange]
set linetype 1 lw 1 lc rgb rgb_ping pt 1
plot \
keyentry title " ", \
keyentry title " ", \
ARG1 using 4:6 title gprintf("Ping (avg. %.0f ms)", PING_mean) axes x1y2 with steps lt 1
# unset elements that would be duplicate
unset title
unset timestamp
unset xlabel
unset ylabel
unset y2label
unset y2tics
set xtics format "" out
set grid
# ---------- plot 2/3: download ----------
# if download marker is given, use it for yrange
if (dlmarker) \
set arrow from graph 0,first marker_download to graph 1,first marker_download \
nohead lw 2 dt "-" lc rgb rgb_download_text back; \
set yrange [0:marker_download*1.5]; \
else set yrange [0:*]
# mark the average
set arrow from graph 0,first DOWNLOAD_mean to graph 1,first DOWNLOAD_mean \
nohead lw 1 dt "-" lc rgb rgb_download_fade back;
# find a sensible tick interval manually
if (dlmarker) ymax = marker_download * 1.2 / 1000000; \
else ymax = DOWNLOAD_max / 1000000;
# scale interval into appropriate magnitude
interval = 1000000;
while (ymax >= 100) {
ymax = ymax / 10;
interval = interval * 10;
}
if (ymax / 2 < 10) interval = interval * 2; else \
if (ymax / 5 < 10) interval = interval * 5; else \
if (ymax / 10 < 10) interval = interval * 10;
set ytics format "%.2s %cBit/s" nomirror out
# maybe split tick labels
if (ulscale != 1.0) set ytics offset 0,0.4 interval tc rgb rgb_download_text;
# --> plot download
set linetype 1 lw 1 lc rgb rgb_download_fade
set linetype 2 lw 3 lc rgb rgb_download
plot \
ARG1 using 4:7 notitle with steps, \
ARG1 using 4:7 title gprintf("Download (avg. %.2s %cBit/s)", DOWNLOAD_mean) sm bezier
# ---------- plot 3/3: upload ----------
# add warning if no data was in range
if (empty_range) \
set label "NO DATA IN RANGE" at graph 0.5,0.5 center font "default,20"
# if upload marker is given, use it for yrange
if (ulmarker) \
set arrow from graph 0,first marker_upload to graph 1,first marker_upload \
nohead lw 2 dt "-" lc rgb rgb_upload_text back;
set yrange [0:GPVAL_Y_MAX/ulscale]
# mark the average
set arrow from graph 0,first UPLOAD_mean to graph 1,first UPLOAD_mean \
nohead lw 1 dt "-" lc rgb rgb_upload_fade back;
# either split tick labels or simply unset
if (ulscale != 1.0) \
set ytics offset 0,-0.4 interval/ulscale textcolor rgb rgb_upload_text; \
else unset ytics;
# --> plot upload
set linetype 1 lw 1 lc rgb rgb_upload_fade
set linetype 2 lw 3 lc rgb rgb_upload
plot \
keyentry title " ", \
ARG1 using 4:8 notitle with steps, \
ARG1 using 4:8 title gprintf("Upload (avg. %.2s %cBit/s)", UPLOAD_mean) sm bezier