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pcl
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Sat, Dec 28, 20:52

pcl
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#!/usr/bin/perl
$[ = 0; # set array base to 1
$, = ' '; # set output field separator
$\ = "\n"; # set output record separator
print ">Usage: pcl [clean] [ext/int] [critic/caustic] [nplan]";
# Get the first DS9 in the xpans list
if( ! $ENV{DS9} )
{
eval{
@xpa = `xpaget xpans`;
@xpa = split(/ /,$xpa[0]);
$title=$xpa[1];
} or do {
$title="ds9";
}
}
else
{
$title=$ENV{DS9};
}
if ($ARGV[0] eq "clean")
{
system("xpaset -p $title regions deleteall");
}
open(ds9,">e.reg");
#----------------------------------------------
$color="red";
#----------------------------------------------
# Read the input file
open $in, "ce.dat" or print "ERROR opening ce.dat";
local $\; # établit le mode slurp en local
@file=<$in>;
close $in;
#Set default WCS coordinates values
$iref = 0;
$ra = 0;
$dec = 0;
# Check if there exists the frames.pl file for compatibility
do 'frames.pl';
$iref = 1 if( $type eq 'fk5' );
# Check if the first line contains a WCS reference
if( $file[0] =~ /#REFERENCE/i )
{
print $file[0];
chop $file[0];
($null,$iref,$ra,$dec) = split / /,$file[0];
}
#If we have the reference coordinates in sexagesimal form
#convert them to degrees
if ($iref == 1)
{
($hh,$mm,$ss)=split(':',$ra);
($dd,$nn,$tt)=split(':',$dec);
$sign=1;
if (substr($dec,0,1) eq '-')
{
$sign=-1;
$dd=abs($dd);
}
$ra=($hh+$mm/60+$ss/3600)*15;
$dec=$sign*($dd+$nn/60+$tt/3600);
$pixel=3600;
$pixelx=-3600*cos($dec/180*3.1415926);
$ds9type = 'fk5';
}
elsif( $iref == 2 )
{
$ds9type = 'image';
}
else #( $iref == 3 or $iref == 0 ) default case
{
$pixel=3600;
$pixelx=-3600*cos($dec/180*3.1415926);
$ds9type = 'fk5';
}
#---------------------------------------------------------
if ($ARGV[1] ne "ext")
{
$n = 0; $i = 1; $id[0]=-1;
push @nplan, $i;
open(in,"ci.dat");
while (<in>)
{
chop; # strip record separator
($id[$i],$xi,$yi,$xs,$ys) = split;
push @nplan, $i if( $id[$i] < $id[$i-1] );
$xxi[$i]=$xi/$pixelx+$ra; $yyi[$i]=$yi/$pixel+$dec;
$xxs[$i]=$xs/$pixelx+$ra; $yys[$i]=$ys/$pixel+$dec;
$i++;
}
close(in);
push @nplan, $i;
if( $ARGV[3] eq "" )
{
$s = 1; $n = $i;
} else
{
$s = $nplan[$ARGV[3]-1];
$n = $nplan[$ARGV[3]];
}
for($i=$s;$i<$n;$i++)
{
if ($id[$i-1] == $id[$i])
{
if ($ARGV[2] ne "caustic")
{
printf ds9 "$ds9type;line(%f,%f,%f,%f) # color=red line=0 0\n",
$xxi[$i-1],$yyi[$i-1],$xxi[$i],$yyi[$i];
}
if ($ARGV[2] ne "critic")
{
printf ds9 "$ds9type;line(%f,%f,%f,%f) # color=yellow line=0 0\n",
$xxs[$i-1],$yys[$i-1],$xxs[$i],$yys[$i];
}
}
}
}
# Empty the nplan array
shift @nplan while( @nplan );
if ($ARGV[1] ne "int")
{
$n = 0; $i = 1; $id[0] = -1;
push @nplan, $i;
open(in,"ce.dat");
while (<in>)
{
chop; # strip record separator
($id[$i],$xi,$yi,$xs,$ys) = split;
push @nplan, $i if( $id[$i] < $id[$i-1] );
$xxi[$i]=$xi/$pixelx+$ra; $yyi[$i]=$yi/$pixel+$dec;
$xxs[$i]=$xs/$pixelx+$ra; $yys[$i]=$ys/$pixel+$dec;
$i++;
}
close(in);
push @nplan, $i;
if( $ARGV[3] eq "" )
{
$s = 1; $n = $i;
} else
{
$s = $nplan[$ARGV[3]-1];
$n = $nplan[$ARGV[3]];
}
for($i=$s;$i<$n;$i++)
{
if ($id[$i-1] == $id[$i])
{
if ($ARGV[2] ne "caustic")
{
printf ds9 "$ds9type;line(%f,%f,%f,%f) # color=red line=0 0\n",
$xxi[$i-1],$yyi[$i-1],$xxi[$i],$yyi[$i];
}
if ($ARGV[2] ne "critic")
{
printf ds9 "$ds9type;line(%f,%f,%f,%f) # color=yellow line=0 0\n",
$xxs[$i-1],$yys[$i-1],$xxs[$i],$yys[$i];
}
}
}
}
close(ds9);
system("cat e.reg | xpaset $title regions");

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