fix this with version from master branch

Tools/plot_tracks.py

+#!/usr/bin/env python3
+
+import os
+import sys, getopt
+import re
+
+# (c) Copyright 2020 CORSIKA Project, corsika-project@lists.kit.edu
+#
+# This software is distributed under the terms of the GNU General Public
+# Licence version 3 (GPL Version 3). See file LICENSE for a full version of
+# the license.
+
+# with this script you can plot an animation of output of TrackWriter
+
+tracks_dat="$1"
+if [ -z "$tracks_dat" ]; then
+  echo "usage: $0 <tracks.dat> [output.gif]" >&2
+  exit 1
+fi
+
+directory=$(dirname "$tracks_dat")
+hadrons_dat="$directory/hadrons.dat"
+muons_dat="$directory/muons.dat"
+electrons_dat="$directory/electrons.dat"
+gammas_dat="$directory/gammas.dat"
+
+#if [ "$muons_dat" -ot "$tracks_dat" -o "$hadrons_dat" -ot "$muons_dat" ]; then
+  echo "splitting $tracks_dat into $muons_dat and $hadrons_dat."
+  cat "$tracks_dat" | egrep '^\s+-*13\s' > "$muons_dat"
+  cat "$tracks_dat" | egrep '^\s+-*11\s' > "$electrons_dat"
+  cat "$tracks_dat" | egrep '^\s+-*22\s' > "$gammas_dat"
+  cat "$tracks_dat" | egrep -v '^\s+-*13\s' | egrep -v '^\s+-*11\s' | egrep -v '^\s+-*22\s' > "$hadrons_dat"
+#fi
+
+output="$2"
+if [ -z "$output" ]; then
+  output="$tracks_dat.gif"
+fi
+
+echo "creating $output..."
+
+cat <<EOF | gnuplot
+set term gif animate size 900,900
+set output "$output"
+
+#set zrange [0:40e3]
+#set xrange [-10:10]
+#set yrange [-10:10]
+set xlabel "x / m"
+set ylabel "y / m"
+set zlabel "z / m"
+set title "CORSIKA 8 preliminary"
+
+do for [t=0:359:1] {
+# for separate file per angle:
+#	set output sprintf("%03d_$output", t)
+
+	set view 80, t
+        splot "$gammas_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "orange" t "", "$electrons_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "blue" t "", "$muons_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "red" t "", "$hadrons_dat" u 3:4:5:6:7:8 w vectors nohead  lc rgb "black" t ""
+}
+EOF
+
+exit $?

Tools/plot_tracks.sh

@@ -2,6 +2,8 @@
 
 # (c) Copyright 2018 CORSIKA Project, corsika-project@lists.kit.edu
 #
+# See file AUTHORS for a list of contributors.
+#
 # This software is distributed under the terms of the GNU General Public
 # Licence version 3 (GPL Version 3). See file LICENSE for a full version of
 # the license.
@@ -17,8 +19,6 @@ fi
 directory=$(dirname "$tracks_dat")
 hadrons_dat="$directory/hadrons.dat"
 muons_dat="$directory/muons.dat"
-electrons_dat="$directory/electrons.dat"
-gammas_dat="$directory/gammas.dat"
 
 if [ ! -e "$tracks_dat" ]; then
   echo "$tracks_dat does not exist" >&2
@@ -28,10 +28,8 @@ fi
 if [ "$muons_dat" -ot "$tracks_dat" ] || [ "$hadrons_dat" -ot "$tracks_dat" ]; then
   echo "splitting $tracks_dat into $muons_dat and $hadrons_dat."
   cat "$tracks_dat" | egrep '^\s+-*13\s' > "$muons_dat"
-  cat "$tracks_dat" | egrep '^\s+-*11\s' > "$electrons_dat"
-  cat "$tracks_dat" | egrep '^\s+-*22\s' > "$gammas_dat"
-  cat "$tracks_dat" | egrep -v '^\s+-*13\s' | egrep -v '^\s+-*11\s' | egrep -v '^\s+-*22\s' > "$hadrons_dat"
-#fi
+  cat "$tracks_dat" | egrep -v '^\s+-*13\s' > "$hadrons_dat"
+fi
 
 output="$2"
 if [ -z "$output" ]; then
@@ -57,7 +55,7 @@ do for [t=0:359:1] {
 #	set output sprintf("%03d_$output", t)
 
 	set view 80, t
-        splot "$gammas_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "orange" t "", "$electrons_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "blue" t "", "$muons_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "red" t "", "$hadrons_dat" u 3:4:5:6:7:8 w vectors nohead  lc rgb "black" t ""
+        splot "$muons_dat" u 3:4:5:6:7:8 w vectors nohead lt rgb "red" t "", "$hadrons_dat" u 3:4:5:6:7:8 w vectors nohead  lc rgb "black" t ""
 }
 EOF