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OpenFOAM-6/bin/foamSequenceVTKFiles
2018-07-06 21:42:54 +01:00

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#!/bin/sh
#------------------------------------------------------------------------------
# ========= |
# \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
# \\ / O peration | Website: https://openfoam.org
# \\ / A nd | Copyright (C) 2015-2018 OpenFOAM Foundation
# \\/ M anipulation |
#------------------------------------------------------------------------------
# License
# This file is part of OpenFOAM.
#
# OpenFOAM is free software: you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
#
# Script
# foamSequenceVTKFiles
#
# Description
# Creates symbolic links to all VTK files in a post-processing directory
# Links form a sequence like name.0000.vtk, name.0001.vtk, etc.
# Paraview recognises link names as a sequence which can be animated.
# The sequence of links can be used to create a video from the images.
# - Default directory name for VTK files is postProcessing
#
#------------------------------------------------------------------------------
error() {
exec 1>&2
while [ "$#" -ge 1 ]; do echo "$1"; shift; done
usage
exit 1
}
usage() {
cat <<USAGE
Usage: ${0##*/} [OPTIONS] ...
options:
-case | -c <dir> specify case directory (default = local dir)
-dir | -d <dir> post-processing directory <dir> (default = postProcessing)
-help | -h print the usage
-out | -o <dir> output links directory <dir> (default = sequencedVTK)
Creates symbolic links to all VTK files in a post-processing directory
Links form a sequence like name.0000.vtk, name.0001.vtk, etc.
Paraview recognises the link names as a sequence which can be opened and played.
The sequence of links to images can be used to create a video from the images.
- Default directory name for VTK files is postProcessing
USAGE
}
dir=postProcessing
out=sequencedVTK
while [ "$#" -gt 0 ]
do
case "$1" in
-c | -case)
[ "$#" -ge 2 ] || error "'$1' option requires an argument"
cd "$2" 2>/dev/null || error "directory does not exist: '$2'"
shift 2
;;
-d | -dir)
[ "$#" -ge 2 ] || error "'$1' option requires an argument"
dir=$2
shift 2
;;
-h | -help)
usage && exit 0
;;
-o | -out)
[ "$#" -ge 2 ] || error "'$1' option requires an argument"
out=$2
shift 2
;;
-*)
error "invalid option '$1'"
;;
*)
break
;;
esac
done
[ ! -d "$dir" ] && error "Cannot find postProcessing directory, exiting."
files=$(find "$dir" -type f -name "*vtk")
names=$(for f in $files; do basename "$f" .vtk; done | sort -u)
if [ -d "$out" ]; then
echo "$out directory already exists. Deleting links within it..."
rm "${out:?}"/* 2>/dev/null
else
echo "Creating $out directory..."
mkdir "$out"
fi
for n in $names
do
echo "Sequencing all VTK files named $n.vtk"
# Create list of VTK files, ordered by time step
file_list=$(echo "$files" | \
tr " " "\n" | \
grep -w "$n\.vtk" | \
awk -F'/' '{print($(NF-1)" "$0)}' | \
LC_ALL=C sort -k 1 -g | \
cut -d' ' -f2)
i=0
for f in $file_list
do
i=$(( i + 1 )) # Relies on ordered list of files
link=$(printf "${n}.%04d.vtk" $i)
ln -s "../$f" "$out/$link"
done
done