4if [ -z $JPP_DIR ]; then
 
    5    echo "Variable JPP_DIR undefined."
 
    9source $JPP_DIR/setenv.sh $JPP_DIR >& /dev/null
 
   11set_variable:  DEBUG       ACOUSTICS_DEBUG        2
 
   12set_variable:  WORKDIR     ACOUSTICS_WORKDIR      ./
 
   13set_variable:  FORMAT      GRAPHICS_FORMAT        gif
 
   14set_variable+  BATCH       GRAPHICS_BATCH         -B
 
   17    usage "$script <input file> <input file>"\
 
   18          "\nInput files correspond to the output of JKatoomba[.sh]."
 
   22    fatal "Wrong number of arguments."
 
   25set_array     INPUT_FILES         $argv[1] $argv[2]
 
   30    -o $WORKDIR/comparison.root               \
 
   33echo "Creating graphics output in directory $WORKDIR"
 
   37for H2 in `JPrintName -f "$WORKDIR/comparison.root:string\[[0-9][0-9]*\]"`; do
 
   39    set_variable  STRING  `echo $H2 | sed 's/.*\[\([0-9]*\)\].*/\1/'`
 
   45        -f "$WORKDIR/comparison.root:${H2}"                       \
 
   47        -> "#DeltaTx [mrad]"                                     \
 
   48        -< "#DeltaTy [mrad]"                                     \
 
   53        -o $WORKDIR/tilt_${STRING}.$FORMAT                        $BATCH