#
# Display the measured temp and the actuator.
# FileLog definition: 
#   define FileLog fhtlog1 fht1:.*(temp|actuator).* /var/log/fht1-%Y-%U.log 
#
set terminal png transparent size 800,200 crop
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 '<TL>'
set grid xtics y2tics

set y2label "temperature (Celsius)"
set ylabel "Actuator (%)"

plot \
  "< awk '/measured/{print $1, $4}' <IN>"\
     using 1:2 axes x1y2 title 'Measured temperature' with lines lw 2,\
  "< awk '/desired/ {print $1, $4+0}' <IN>"\
     using 1:2 axes x1y2 title 'Desired temperature' with steps,\
  "< awk '/actuator/ {print $1, $4+0}' <IN>"\
     using 1:2 axes x1y1 title 'Actuator (%)' with lines\