NAME

Geo::Forward - Calculate geographic location from lat, lon, distance, and heading.

SYNOPSIS

  use Geo::Forward;
  my $object = Geo::Forward->new(); # default "WGS-84"
  my ($lat1,$lon1,$faz,$dist)=(38.871022, -77.055874, 62.888507083, 4565.6854);
  my ($lat2,$lon2,$baz) = $object->forward($lat1,$lon1,$faz,$dist);
  print "Input Lat: $lat1  Lon: $lon1\n";
  print "Input Forward Azimuth: $faz\n";
  print "Input Distance: $dist\n";
  print "Output Lat: $lat2 Lon: $lon2\n";
  print "Output Back Azimuth: $baz\n";

DESCRIPTION

This module is a pure Perl port of the NGS program in the public domain "forward" by Robert (Sid) Safford and Stephen J. Frakes.

METHODS

TODO

BUGS

LIMITS

No guarantees that Perl handles all of the double precision calculations in the same manner as Fortran.

AUTHOR

Michael R. Davis qw/perl michaelrdavis com/

LICENSE

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

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