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Geo::Functions.3pm

NAME

Geo::Functions - Package for standard Geo:: functions.

SYNOPSIS

   use Geo::Functions qw{deg_rad deg_dms rad_deg}; #import into namespace
   print "Degrees: ", deg_rad(3.14/4), "\n";
 
   use Geo::Functions;
   my $obj = Geo::Functions->new;
   print "Degrees: ", $obj->deg_rad(3.14/2), "\n";
 
 

DESCRIPTION

CONVENTIONS

Function naming convention is ``format of the return'' underscore ``format of the parameters.'' For example, you can read the deg_rad function as ``degrees given radians'' or ``degrees from radians''.

CONSTRUCTOR

new

The new() constructor

   my $obj = Geo::Functions->new();
 
 

METHODS

deg_dms

Degrees given degrees minutes seconds.

   my $deg=deg_dms(39, 29, 17.134);
 
   my $deg=deg_dms(39, 29, 17.134, 'N');
 
 

deg_rad

Degrees given radians.

   my $deg=deg_rad(3.14);
 
 

rad_deg

Radians given degrees.

   my $rad=rad_deg(90);
 
 

rad_dms

Radians given degrees minutes seconds.

   my $rad=rad_dms(45 30 20.0);
 
 

round

Round to the nearest integer. This formula rounds toward +/- infinity.

   my $int=round(42.2);
 
 

dms_deg

Degrees minutes seconds given degrees.

   my ($d, $m, $s, $sign)=dms_deg($degrees, qw{N S});
   my ($d, $m, $s, $sign)=dms_deg($degrees, qw{E W});
 
 

dm_deg

Degrees minutes given degrees.

   my ($d, $m, $sign)=dm_deg($degrees, qw{N S});
   my ($d, $m, $sign)=dm_deg($degrees, qw{E W});
 
 

mps_knots

meters per second given knots

   my $mps=mps_knots(50.0);
 
 

knots_mps

knots given meters per second

   my $knots=knots_mps(25.0);
 
 

TODO

BUGS

Please send to the geo-perl email list.

LIMITS

AUTHOR

Michael R. Davis qw/perl michaelrdavis com/

LICENSE

Copyright (c) 2006 Michael R. Davis (mrdvt92)

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

SEE ALSO

Geo::Constants Geo::Ellipsoids