NAME
Algorithm::GooglePolylineEncoding - Google's Encoded Polyline Algorithm Format
SYNOPSIS
use Algorithm::GooglePolylineEncoding;
@polyline = ({lat => 52.5, lon => 13.4}, ...);
$encoded_polyline = Algorithm::GooglePolylineEncoding::encode_polyline(@polyline);DESCRIPTION
Algorithm::GooglePolylineEncoding implements the encoded polyline algorithm format which is used in some parts of the Google Maps API. The algorithm is described in http://code.google.com/intl/en/apis/maps/documentation/polylinealgorithm.html.
This module is a light-weight version of Geo::Google::PolylineEncoder, essentially just doing the encoding part without any line simplification, and implemented without any CPAN dependencies.
FUNCTIONS
- encode_polyline(@polyline)
-
Take an array of
{lat => ..., lon => ...}hashrefs and return an encoded polyline. Latitudes and longitudes should be expressed as decimal degrees (DD; http://en.wikipedia.org/wiki/Decimal_degrees). - encode_level($level)
-
Return an encoded level.
- encode_number($number)
-
Return just an encoded number (which may be a single longitude, or latitude, or delta).
TODO
Implement decode_polyline.
AUTHOR
Slaven Rezic <srezic@cpan.org>
COPYRIGHT
Copyright (c) 2009 Slaven Rezic. All rights reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.