Handle time of day in the gnuplot script

diff --git a/contrib/visomat.gnuplot b/contrib/visomat.gnuplot
index 6ab72e6..0c6427c 100755 (executable)
--- a/contrib/visomat.gnuplot
+++ b/contrib/visomat.gnuplot
@@ -1,12 +1,10 @@
 #!/usr/bin/gnuplot -persist
 
-# TODO: deal with time of the day
-set timefmt "%d/%m/%Y"
-set xdata time
-
 set datafile separator ';'
+set timefmt "%d/%m/%Y-%H.%M"
+set xdata time
 
 plot \
-  'data.csv' using 1:3 every ::1 with lp title "systolic", \
-  'data.csv' using 1:4 every ::1 with lp title "diastolic" , \
-  'data.csv' using 1:5 every ::1 with lp title "pulses"
+  'data.csv' using (stringcolumn(1).'-'.stringcolumn(2)):3 every ::1 with lp title "systolic", \
+  'data.csv' using (stringcolumn(1).'-'.stringcolumn(2)):4 every ::1 with lp title "diastolic", \
+  'data.csv' using (stringcolumn(1).'-'.stringcolumn(2)):5 every ::1 with lp title "pulses"