#!/bin/sh
#------------------------------------------------------------------------------
# =========                 |
# \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
#  \\    /   O peration     | Website:  https://openfoam.org
#   \\  /    A nd           | Copyright (C) 2011-2022 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
#     createGraphs
#
# Description
#     Creates .eps graphs of OpenFOAM results vs experiment for the buoyant
#     cavity case
#
#------------------------------------------------------------------------------

cd ${0%/*} || exit 1    # Run from this directory

# Stop on first error
set -e

createEpsT()
{
    index=$1
    OF=$2
    EXPT=$3

    gnuplot<<EOF
    set terminal postscript eps color enhanced
    set output "OF_vs_EXPT_T$i.eps"
    set xlabel "Channel width, x / [m]"
    set ylabel "Temperature / [K]"
    set grid
    set key left top
    set size 0.6, 0.6
    set xrange [0:0.08]
    set yrange [285:310]
    plot \
        "$EXPT" u (\$1/1000):(\$2+273.15) title "Expt 0.$index" \
        with points lt 1 pt 6, \
        "$OF" title "OpenFOAM 0.$index" with lines linetype -1
EOF
}


createEpsU()
{
    index=$1
    OF=$2
    EXPT=$3

    gnuplot<<EOF
    set terminal postscript eps color enhanced
    set output "OF_vs_EXPT_U$i.eps"
    set xlabel "Channel width, x / [m]"
    set ylabel "Vertical velocity component, Uy / [m/s]"
    set grid
    set key left top
    set size 0.6, 0.6
    set xrange [0:0.08]
    set yrange [-0.2:0.2]
    plot \
        "$EXPT" u (\$1/1000):(\$2) title "Expt 0.$index" \
        with points lt 1 pt 6, \
        "$OF" u 1:4 title "OpenFOAM 0.$index" with lines linetype -1
EOF
}

echo "createGraphs:"

# test if gnuplot exists on the system
if ! which gnuplot > /dev/null 2>&1
then
    echo "FOAM FATAL ERROR: gnuplot not found - skipping graph creation" >&2
    exit 1
fi

SETSDIR="../postProcessing/sample"

if [ ! -d $SETSDIR ]
then
    echo "FOAM FATAL ERROR: result sets not available in directory $SETSDIR" >&2
    exit 1
fi

# paths to data
LATESTTIME=`ls $SETSDIR`
OFDATAROOT=$SETSDIR/$LATESTTIME

EXPTDATAROOT=./exptData

# generate temperature profiles
TSets="1 3 4 5 6 7 9"
for i in $TSets
do
    echo "    processing temperature profile at y/yMax of 0.$i"

    OF="$OFDATAROOT/y0.${i}.xy"
    EXPT="$EXPTDATAROOT/mt_z0_${i}0_lo.dat"

    createEpsT $i $OF $EXPT
done


# generate velocity profiles
USets="1 3 4 5 6 7 9"
for i in $USets
do
    echo "    processing velocity profile at y/yMax of 0.$i"

    OF="$OFDATAROOT/y0.${i}.xy"
    EXPT="$EXPTDATAROOT/mv_z0_${i}0_lo.dat"

    createEpsU $i $OF $EXPT
done

echo "End"

#------------------------------------------------------------------------------