Geo::Constants(3pm) User Contributed Perl Documentation Geo::Constants(3pm)

Geo::Constants - Package for standard Geo:: constants.

  use Geo::Constants qw{PI DEG RAD}; #import into namespace
  print "PI:  ", PI(), "\n";
  print "d/r: ", DEG(), "\n";
  print "r/d: ", RAD(), "\n";
  use Geo::Constants;                #Perl OO
  my $obj = Geo::Constants->new();
  print "PI:  ", $obj->PI, "\n";
  print "d/r: ", $obj->DEG, "\n";
  print "r/d: ", $obj->RAD, "\n";

The new() constructor

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

PI

  my $pi = $obj->PI;
  use Geo::Constants qw{PI};
  my $pi = PI();

DEG

  my $degrees_per_radian = $obj->DEG;
  use Geo::Constants qw{DEG};
  my $degrees_per_radian = DEG();

RAD

  my $radians_per_degree = $obj->RAD;
  use Geo::Constants qw{DEG};
  my $radians_per_degree = RAD();

KNOTS

1 nautical mile per hour = (1852/3600) m/s - United States Department of Commerce, National Institute of Standards and Technology, NIST Special Publication 330, 2001 Edition

Returns 1852/3600

Add more constants

Please send to the geo-perl email list.

Michael R. Davis qw/perl michaelrdavis com/

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.

Geo::Functions Geo::Ellipsoids

2022-10-13 perl v5.36.0