fhem-mirror/fhem/www/gplot/temp4hum6.gplot

#
# Display the measured temp and the humidity.
# FileLog definition: 
# define <filelogname> FileLog /var/log/fhem/hmsname-%Y.log <hmsname>:T:.*
#
# Logfile record example:
# 2008-07-24_02:20:57 UGHygro T: 17.2  H: 77.6  Bat: ok

# Attribute 'small' is useful for gnuplot/-scroll only,
# if plotsize is less than 800,400
#set terminal png transparent small size <SIZE> crop

set readonly
set terminal png transparent truecolor rounded medium size <SIZE> enhanced

set output '<OUT>.png'
set xdata time
set timefmt "%Y-%m-%d_%H:%M:%S"
set xlabel " "
set ytics nomirror
set y2tics
#set ytics
set title '<L1>'
set grid xtics y2tics

set y2label "Temperature in C"
set ylabel "Humidity (%)"

#FileLog 4:T\x3a:0:
#FileLog 6:H\x3a:0:

plot \
  "< awk '/T:/ {print $1, $4}' <IN>" using 1:2 ls l0 axes x1y2 title 'Temperature' with lines,\
  "< awk '/H:/ {print $1, $6}' <IN>" using 1:2 ls l2fill axes x1y1 title 'Humidity' with lines