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#!/usr/bin/perl
# Creates hipparcos data file for use with Stellarium
# from source hip_main.dat data file available at
# http://cdsweb.u-strasbg.fr/viz-bin/Cat?I/239
# Copyright 2005 Robert Spearman
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
print "\nConverting hip_main.dat to hipparcos.fab\n\n";
print "WARNING: This script has only been tested on x86 Linux.\n";
print "It may produce incorrect results on other platforms.\n\n";
sleep 2;
open(IN, "hip_main.dat") || die "Can't find hip_main.dat\n";
open(OUT, ">hipparcos.fab") || die "Can't write hipparcos.fab\n";
my $dmin = 1000000000000;
my $dmax = 0;
while(<IN>) {
chomp;
$_ =~ s/\|/\t/g;
@f = split('\t', $_);
# print("$f[1] : $f[3] : $f[4] : $f[5] : $f[76]\n");
$hp = $f[1];
$mag = $f[5];
if($hp > $high) { $high = $hp; } # data isn't contiguous...
# ra and de in hms
if( $f[3] =~ /(\-*)(\d\d) (\d\d) (\d\d\.\d\d)/ ) {
$ra = $2 + $3/60 + $4/3600;
if($1 eq "-") { $ra *= -1; }
} else {
print "error with ra on hp $hp\n";
next;
}
if( $f[4] =~ /(\-*)(\d\d) (\d\d) (\d\d.\d)/ ) {
$de = $2 + $3/60 + $4/3600;
if($1) { $de *= -1; }
} else {
print "error with de on hp $hp\n";
next;
}
$f[76] =~/^(.)(.)/;
if( $1 eq "0") {
$sptype = 0;
} elsif($1 eq "B") {
$sptype = 1;
} elsif($1 eq "A") {
$sptype = 2;
} elsif($1 eq "F") {
$sptype = 3;
} elsif($1 eq "G") {
$sptype = 4;
} elsif($1 eq "K") {
$sptype = 5;
} elsif($1 eq "M") {
$sptype = 6;
} elsif($1 eq "R") {
$sptype = 7;
} elsif($1 eq "S") {
$sptype = 8;
} elsif($1 eq "N") {
$sptype = 9;
} elsif($1 eq "W") {
if($2 eq "N") {
$sptype = 10;
} else {
$sptype = 11;
}
} else {
$sptype = 12;
}
$spcode = $1;
if($sptype == 11) {
$spcode = "X";
} elsif($sptype == 12) {
$spcode = "?";
}
# print "$hp\t$ra\t$de\t$f[5]\t$f[76] ($sptype)\n";
$x = 256*$mag;
# printf( "%d\t%d\t%.4f\t%.4f\t%s\n", $hp, $x, $ra, $de, $spcode);
# distance
if($f[11]==0) {
$ly = 0;
print "No parallax for hp $hp\n";
} else {
$ly = abs(3.2616/($f[11]/1000));
if($ly<$dmin) {$dmin = $ly;}
if($ly>$dmax) {$dmax = $ly;}
}
$out{int($hp)} = pack("ffSCf", $ra, $de, $x, $sptype, $ly);
# $out{int($hp)} = pack("ffSxC", $ra, $de, $x, $sptype);
}
# catalog size
print "Highest hp = $high\n";
print "ly min: $dmin\tlymax: $dmax\n";
print OUT pack("L", $high+1); # hp numbers start at 1
# data isn't sorted or contiguous in source file!
for( $a=0; $a<=$high; $a++) {
if($out{$a} eq "" ) {
print OUT pack("xxxxxxxxxxxxxxx");
} else {
print OUT $out{$a};
}
}
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