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#!/bin/bash
#
# Automatically extracts all histograms
# from a root file and saves them as image files.
# Creates a directory structure exactly as found
# in the root file itself.
#
# Michael Anderson
# May 22, 2008
plotMacro=./saveHistograms.C
defaultXsize=480
defaultYsize=360
printUsage() {
echo
echo "Saves all histograms from a root file into images"
echo "Usage: saveHistograms file.root"
echo " saveHistograms file.root imageType"
echo " saveHistograms file.root imageType xSize ySize"
echo "example:"
echo " saveHistograms jets.root gif $defaultXsize $defaultYsize"
}
saveHistFromRootFile() {
rootFile=$1
imageType=$2
xSize=$3
ySize=$4
echo "Saving histograms from $rootFile as $xSize x $ySize $imageType images."
# call the root macro in batch mode and tell it to quit when it's done
root -b -l -q "$plotMacro(\"$rootFile\",\"$imageType\",$xSize,$ySize)"
}
# Main method
if [ $# -eq 0 ]; then
#for a in `ls | grep .root`; do
# saveHistFromRootFile $a gif $defaultXsize $defaultYsize
#done
#exit
printUsage
exit 2
else
rootFile=$1
imageType="gif"
xSize=$defaultXsize
ySize=$defaultYsize
fi
if [ $# -gt 0 ]; then
rootFile=$1
fi
if [ $# -gt 1 ]; then
imageType=$2
fi
if [ $# -gt 3 ]; then
xSize=$3
ySize=$4
fi
saveHistFromRootFile $rootFile $imageType $xSize $ySize
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