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

#                    P L O T _ C O R R E L A T I O N . P L 

#                    doc: Tue Jul 28 13:21:09 2015

#                    (c) 2015 A.M. Thurnherr

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

# HISTORY:

#	Jul 28, 2015: - created from [LWplot_corr]

require "$ANTS/libGMT.pl";

sub plot_correlation($)

{

	my($pfn) = @_;

	my($xmin) = $P{min_ens}-0.5;

	my($xmax) = $P{max_ens}+0.5;

	my($ymin) = 0;

	my($ymax) = ($P{water_depth} > 0) ?

				round($P{water_depth} + 25) :

				round($P{max_depth} + $P{ADCP_bin_length});

	my($ens_width) = 10 / ($P{max_ens} - $P{min_ens} + 1);

	my($bin_length) = 10 * $P{ADCP_bin_length} / 

						($P{max_depth}-$P{min_depth}+$P{ADCP_bin_length});

	my($R) = "-R$xmin/$xmax/$ymin/$ymax";

	GMT_begin($pfn,'-JX10/-10',$R,'-P');

	my($C) = "-C$WCALC/corr.cpt";

	GMT_psxy("$C -Sr");

		for ($ens=$firstGoodEns; $ens<=$realLastGoodEns; $ens++) {

		  next unless numberp($LADCP{ENSEMBLE}[$ens]->{CTD_DEPTH});

		  my(@bindepth) = calc_binDepths($ens);

		  for ($bin=$LADCP_firstBin-1; $bin<=$LADCP_lastBin-1; $bin++) {

			  next unless numberp($LADCP{ENSEMBLE}[$ens]->{W}[$bin]);

			  my($bi) = $bindepth[$bin]/$opt_o;

			  printf(GMT "%d %f %f $ens_width $bin_length\n",

				$LADCP{ENSEMBLE}[$ens]->{NUMBER},

				$bindepth[$bin],

				$LADCP{ENSEMBLE}[$ens]->{CORRELATION}[$bin]);

          }

        }

	if ($P{water_depth} > 0) {															# SEABED

		GMT_psxy('-G204/153/102');

		print(GMT "$xmin $ymax\n$xmax $ymax\n$xmax $P{water_depth}\n $xmin $P{water_depth}\n");

	}

	GMT_unitcoords();																	# LABELS

	GMT_pstext(-Gblue);

		print(GMT "0.02 0.98 12 0 0 BL $P{out_basename} $P{run_label}\n");

	my($depth_tics) = ($ymax < 1000 ) ? 'f10a100' : 'f100a500';							# AXES

	my($ens_tics) =   ($ymax < 1000 ) ? 'f50a500' : 'f500a2000';

	GMT_setR($R);

	GMT_psbasemap("-B$ens_tics:'Ensemble [#]':/$depth_tics:'Depth [m]':WeSn");

	GMT_setAnnotFontSize(7);															# SCALE BAR

	GMT_psscale("-E -D8/2/3/0.4 $C -B/:corr:");

	GMT_end();																			# FINISH PLOT

}

1; # return true on require