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Manual Reference Pages  -  GIS::DISTANCE::FORMULA (3)

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NAME

GIS::Distance::Formula - Role for all the GIS::Distance::Formula:: classes.

CONTENTS

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.
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perl v5.20.3 GIS::DISTANCE::FORMULA (3) 2015-06-11

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