+#!/bin/sh
+
+case $# in
+1)
+ file="$1"
+ title="$1"
+ ;;
+2)
+ file="$1"
+ title="$2"
+ ;;
+*)
+ echo "Usage: $0 <data-file> <title>"
+ exit 1
+esac
+
gnuplot -persist << EOF
-set ylabel "altitude (m)"
+set ylabel "distance (m)"
set y2label "angle (d)"
set xlabel "time (s)"
set xtics border out nomirror
set ytics border out nomirror
set y2tics border out nomirror
-plot "$1" using 1:3 with lines axes x1y1 title "raw height",\
-"$1" using 1:9 with lines axes x1y2 title "angle",\
-"$1" using 1:11 with lines axes x1y2 title "qangle"
+set title "$title"
+plot "$file" using 1:5 with lines axes x1y1 title "height",\
+"$file" using 1:7 with lines axes x1y2 title "angle",\
+"$file" using 1:13 with lines axes x1y2 title "gps angle",\
+"$file" using 1:15 with lines axes x1y2 title "sats"
EOF