NAME
GIS::Distance::Formula - Role for all the GIS::Distance::Formula:: classes.
DESCRIPTION
This role enforces an API and provides shared information for the formula classes that use it.
ATTRIBUTES
kilometer_rho
Number of kilometers around the equator of the earth. Defaults to 6371.64.
deg_ratio
Number of units in a single decimal degree (lat or lon) at the equator. The default, 0.0174532925199433, is derived from:
$gis->distance( 10,0 => 11,0 )->km() / $gis->kilometer_rho()
AUTHOR
Aran Clary Deltac <bluefeet@cpan.org>
LICENSE
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.