#!/usr/bin/env gnuplot UTC_OFFSET=8 set terminal pdfcairo size 12cm,8cm enhanced font 'DejaVu Sans,10' set datafile separator " " set timefmt "%s" stats "csv/hankou.csv" using (column("timestamp")) name "timestamp" nooutput set xdata time set xlabel "Local time in Hankou (UTC+8)" set format x "%d/%m %H:%M" set xtics rotate by 45 right set y2tics set ylabel "Water level (meters)" set y2label "Flow (m^3/s)" set title "Hankou" set key bottom center horizontal outside set label "yngtz.xyz" at screen 0.8, screen 0.025 textcolor "#770000" set output "graphs/hankou.pdf" plot "csv/hankou.csv" using (column("timestamp")+UTC_OFFSET*3600):"level" title 'Current level' with lines axes x1y1 lc rgb '#0000aa' lw 3, \ "csv/hankou.csv" using (column("timestamp")+UTC_OFFSET*3600):"inflow" title 'Flow' with lines axes x1y2 lc rgb '#aa0000' lw 2 set xrange [timestamp_max-3*86400+UTC_OFFSET*3600:timestamp_max+UTC_OFFSET*3600] set output "graphs/hankou-3d.pdf" replot set xrange [timestamp_max-86400+UTC_OFFSET*3600:timestamp_max+UTC_OFFSET*3600] set output "graphs/hankou-24h.pdf" replot