symbols_distances.gnuplot: use more informative titles

diff --git a/plot/symbols_distances.gnuplot b/plot/symbols_distances.gnuplot
index 6e6da1f..c5c1d9b 100755 (executable)
--- a/plot/symbols_distances.gnuplot
+++ b/plot/symbols_distances.gnuplot
@@ -71,23 +71,28 @@ set terminal qt 0 enhanced font "Georgia,14" size _w,_h
 #set terminal pngcairo notransparent  nocrop truecolor rounded enhanced font "Georgia,14" fontscale 1.0 size _w,_h
 #set output 'symbols_distances.png'
 
-set multiplot layout 2, 1 title "Relative symbol distances (receiver)" font "Georgia,14"
+my_title = "Relative symbol distances (receiver)\n" . \
+         sprintf("min call setup time %.2f s\n", call_setup_time_min) . \
+         sprintf("max call setup time %.2f s\n", call_setup_time_max) . \
+         sprintf("fixed inter call distance %.2f s\n", inter_call_distance)
+
+set multiplot layout 2, 1 title my_title font "Georgia,14"
 
 first_call_time = call_setup_time_max
 second_call_time = call_setup_time_min
 
-set title "Minimum call distance"
+set title "Minimum distance between the first rings of two calls"
 plot \
   symbols_distances_data using (0):(0):(call_position):(call_position + call_time($16)):(0):(symbol_bar_height($0)):0 with boxxy \
     fs solid noborder lc palette notitle, \
-  symbols_distances_data using ($20):(0.53):(get_val(strcol(22)) - $20):(0) with vectors arrowstyle 1 title 'receiver symbol interval', \
+  symbols_distances_data using ($20):(0.53):(get_val(strcol(22)) - $20):(0) with vectors arrowstyle 1 title 'receiver symbol window', \
   symbols_distances_data using ($20):(0):(0):(0.55) with vectors arrowstyle 2 notitle, \
   symbols_distances_data using ($20 + symbol_distance / 2):(0.55):(strcol(11)) with labels font "Courier,12" notitle, \
 
 first_call_time = call_setup_time_min
 second_call_time = call_setup_time_max
 
-set title "Maximum call distance"
+set title "Maximum distance between the first rings of two calls"
 replot
 
 unset multiplot