Generating SVG graphs from mtr reports

mtr_graph.gp

# Use a stacked column histogram
set style data histograms
set style histogram rowstacked

# Columns are 60% of max width (i.e. not touching, set 1.0 for touching)
set boxwidth 0.6

# Define colours - 1:yellow 2:orange 3:red
unset style line
set style line 1  linetype 1 linecolor rgb "#ffff99"
set style line 2  linetype 2 linecolor rgb "#ffdb99"
set style line 3  linetype 3 linecolor rgb "#ff9999"
set style increment userstyles

# Use fill colours with a black border on each segment
set style fill solid 1.00 border lt -1

# Print border/axis only on bottom & left
unset grid
set xtics nomirror out
set ytics nomirror
set border 3

# Legend in top left, get column titles from input file
set key inside left top invert autotitles columnheader

set xlabel "Hops"
set ylabel "Response time (ms)"

# Uncomment next 2 lines to print SVG to standard out
#set terminal svg size 600,300 dynamic  fname 'Source Sans Pro'  fsize 12 butt solid
#set output
plot "infile" u 2:xticlabel(1), "" u 3, "" u 4

mtr_graph.sh

#!/bin/sh
if [ -f $1 ]
  then
    REPORT=$1
else
  echo "Specify an mtr report: $0 path/to/report.txt";
  exit 1;
fi

TMP=$(mktemp)
cat $REPORT | tail -n+3 \
  | awk 'BEGIN {print "Hop\tBest\tAverage\tWorst";} \
  {print NR,"\t",$7,"\t",$6,"\t",$8;}' \
  > $TMP

gnuplot << EOF
set style data histograms
set style histogram rowstacked
set boxwidth 0.6
unset style line
set style line 1  linetype 1 linecolor rgb "#ffff99"
set style line 2  linetype 2 linecolor rgb "#ffdb99"
set style line 3  linetype 3 linecolor rgb "#ff9999"
set style increment userstyles
set style fill   solid 1.00 border lt -1
unset grid
set xtics nomirror out
set ytics nomirror
set border 3
set key inside left top invert autotitles columnheader
set title "$REPORT"
set xlabel "Hops"
set ylabel "Response time (ms)"
set terminal svg size 650,350 dynamic  fname 'Source Sans Pro'  fsize 12 butt solid 
set output
plot "$TMP" u 2:xticlabel(1), "" u 3, "" u 4
EOF