#!/bin/sh

#======================================================================

#					 L W P L O T _ W 

#                    doc: Sat Oct 15 13:42:50 2011

#                    (c) 2011 A.M. Thurnherr

#======================================================================

# HISTORY:

#	Oct 15, 2011: - created

#	Oct 17, 2011: - turned into filter

#				  - added %run_label

#	Oct 19, 2011: - fiddled

#   Oct 24, 2011: - LADCP_bin_length => ADCP_bin_length

#	Nov 14, 2011: - added file layout check

#	Mar 12, 2012: - sh -> ksh as this does not work with /bin/sh on MacOSX 10.6.4

#   Apr 12, 2012: - made re-entrant

#	Apr  5, 2015: - made fixbb optional

#   Apr 16, 2015: - removed copy of input on stdout

#				  - changed shell from /bin/ksh to /bin/sh

#				  - added seabed if available

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

# Usage

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

USAGE="Usage: $0 <eps-file> [in-file]"

	[ $# -eq 2 ] && exec <"$2" "$0" "$1"

	[ $# -ne 1 ] && { echo $USAGE >&2; exit 1; }

eps_file="$1"

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

# Read Header Data

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

do

	[ -z "$out_basename" ] && out_basename=`expr -- "$line" : '#ANTS#PARAMS#.*out_basename{\([^}]*\)}`

	[ -z "$run_label" ] && run_label=`expr -- "$line" : '#ANTS#PARAMS#.*run_label{\([^}]*\)}`

	[ -z "$min_depth" ] && min_depth=`expr -- "$line" : '#ANTS#PARAMS#.*min_depth{\([^}]*\)}`

	[ -z "$max_depth" ] && max_depth=`expr -- "$line" : '#ANTS#PARAMS#.*max_depth{\([^}]*\)}`

	[ -z "$water_depth" ] && water_depth=`expr -- "$line" : '#ANTS#PARAMS#.*water_depth{\([^}]*\)}`

	[ -z "$min_ens" ] && min_ens=`expr -- "$line" : '#ANTS#PARAMS#.*min_ens{\([^}]*\)}`

	[ -z "$max_ens" ] && max_ens=`expr -- "$line" : '#ANTS#PARAMS#.*max_ens{\([^}]*\)}`

	[ -z "$ADCP_bin_length" ] && ADCP_bin_length=`expr -- "$line" : '#ANTS#PARAMS#.*ADCP_bin_length{\([^}]*\)}`

	[ -z "$fields" ] && fields=`expr -- "$line" : '#ANTS#FIELDS# \(.*\)' | sed -e s/{//g -e s/}//g`

done

set -- $fields

[ "$1" = ensemble -a "$4" = depth -a "$7" = w ] || {

	echo "$0: file layout error" >&2

	exit 1

}

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

# Plot Data

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

eps_file="$PWD/$eps_file"	# make outfile name absolute (hopefully, it is not already...)

mkdir /tmp/$$				# GMT makes tmpfiles and is not reentrant

cd /tmp/$$

TMPFILE=/tmp/$$.LWplot_w

cat > $TMPFILE

[ -f .gmtdefaults4 ] ||

	gmtset	PAPER_MEDIA letter+ \

			LABEL_FONT_SIZE 14 ANNOT_FONT_SIZE_PRIMARY 14 \

			WANT_EURO_FONT true \

	        PLOT_DEGREE_FORMAT ddd:mm:ssF

[ -n "$water_depth" ] && blim=`echo "scale=1;$water_depth+25"|bc` \

				      || blim=`echo "scale=1;$max_depth+$ADCP_bin_length"|bc`

R=-R`echo "scale=1;$min_ens-0.5"|bc`/`echo "scale=1;$max_ens+0.5"|bc`/0/$blim

U=-R0/1/0/1

X=-JX10/-10

ens_width=`echo "scale=5;10/($max_ens-$min_ens+1)"|bc`

bin_length=`echo "scale=5;10*$ADCP_bin_length/($max_depth-$min_depth+$ADCP_bin_length)"|bc`

awk "{print \$1, \$4, \$7, $ens_width, $bin_length}" $TMPFILE \

[ -n "$water_depth" ] && {

	echo $min_ens $blim;

	echo $max_ens $blim;

	echo $max_ens $water_depth;

	echo $min_ens $water_depth;

} | psxy -O -K $R $X -G204/153/102 >> "$eps_file"

echo 0.02 0.02 12 0 0 TL $out_basename $run_label | pstext -O -K $U $X >> "$eps_file"

if [ 0 -eq `echo "($max_depth-$min_depth)>1000"|bc` ]

then

	depth_tics=f10a100

	ens_tics=f50a500

else

	depth_tics=f100a500

	ens_tics=f500a1000

fi

rm $TMPFILE

[ -n "`which fixbb`" ] && fixbb "$eps_file"

cd "$PWD"

rm -rf /tmp/$$