#!/bin/sh
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"

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