nodata.gpl

#!/usr/bin/gnuplot
reset;
set encoding utf8;

OUTFILE_small=sprintf("out/%d_small.png", ID);

set key autotitle columnheader top right;
set grid xtics front;
S_START=strptime("%Y-%m-%dT%H:%M:%S" . CONFIG_TZ, PERIOD_START);
S_END=strptime("%Y-%m-%dT%H:%M:%S" . CONFIG_TZ, PERIOD_END);
END_YEAR=system("TZ=" . CONFIG_TIMEZONE . " date +%Y --date='" . PERIOD_END . "'");

set xrange [ S_START : S_END ]; # set xlabel "timestamp";

set xdata time; set timefmt "%Y-%m-%dT%H:%M:%S" . CONFIG_TZ; set format x "%Y-%m-%d\n%H:%M " . CONFIG_TZ;

# small PNGs for Fusion tables
FONT="Futura Std Medium";
set term png enhanced notransparent nointerlace truecolor butt font FONT . ",7" size CONFIG_WIDTH_SMALL, CONFIG_HEIGHT_SMALL background "#ffffff";
set output OUTFILE_small;

unset title;
unset ytics; unset y2tics;
set yrange [-0.1:+1.1]; set ytics mirror; set label 31 "μSv/h" at graph 0.0, graph 1.0 right offset -0.5, 0.5; set format y "%0.2f";
set grid x y;
set format x "%m/%d"; set xtics offset 0, graph 0.03; set label 32 END_YEAR at graph 0.5, graph -0.17 center;

plot \
	-1 w l notitle;
unset for [i in "31 32"] label i;


# small PNGs for Fusion tables @2x res
FONT="Futura ND";
WIDTH=CONFIG_WIDTH_SMALL * 2; HEIGHT = CONFIG_HEIGHT_SMALL * 2;
set term pngcairo enhanced color solid notransparent background "#ffffff" font FONT . ",14" linewidth 2 butt size WIDTH, HEIGHT;
set output sprintf("out/%d_%dx%d.png", ID, WIDTH, HEIGHT);

unset title;
set yrange [-0.1:+1.1]; set ytics mirror; set label 31 "μSv/h" at graph 0.0, graph 1.0 right offset -0.5, 0.5; set format y "%0.2f";
set grid x y;
set format x "%m/%d"; set xtics offset 0, graph 0.03; set xlabel END_YEAR offset 0,1;
# add sensor ID within the graph
set label 40 sprintf("%d", ID) at graph 0.5, graph 0.5 center font FONT . ",100" back textcolor rgb "#dddddd";
plot \
	-1 w l notitle;

unset for [i in "31 32 40"] label i; unset xlabel;