/ 
Geo-Distance-Google-0.01
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/ Geo::Distance::Google

NAME

Geo::Distance::Google - Google Maps Distance API

SYNOPSIS

use Geo::Distance::Google;

my $geo = Geo::Distance::Google->new; 

my $distance = $geo->distance(
  # sears tower... wacker tower whatever
  origins      => '233 S. Wacker Drive Chicago, Illinois 60606',
  destinations => '1600 Amphitheatre Parkway, Mountain View, CA'
);

printf "The distance between: %s and %s is %s\n",
   $distance->[0]->{origin_address},
   $distance->[0]->{destinations}->[0]->{address},
   $distance->[0]->{destinations}->[0]->{distance}->{text};

DESCRIPTION

Geo::Distance::Google provides a distance and duration functionality using Google Maps API.

METHODS

new

Create new geo distance object.

$geo = Geo::Distance::Google->new( https => 1 );
$geo = Geo::Distance::Google->new( language => 'ru' );
$geo = Geo::Distance::Google->new( gl => 'ca' );

Parameters (all are optional)

  • ua - LWP::UserAgent object or compatiable

  • host - url of api host

  • language - Google's response will be in this language (when possible by google)

  • region - region for usage

  • sensor - true (1) when pulling data from GPS sensor

  • mode - mode of transport (default: driving)

  • avoid - restrictions applied to directions (supports 'tolls' or 'highways')

  • https - set to true will make requests with https

  • debug - true will output internal debugging info

You can optionally use your Maps Premier Client ID, by passing your client code as the client parameter and your private key as the key parameter. The URL signing for Premier Client IDs requires the Digest::HMAC_SHA1 and MIME::Base64 modules. To test your client, set the environment variables GMAP_CLIENT and GMAP_KEY before running 02_v3_live.t

GMAP_CLIENT=your_id GMAP_KEY='your_key' make test

distance

$distance = $geo->distance( 
  origins      => '233 S. Wacker Drive Chicago, Illinois 60606',
  destinations => '1600 Amphitheatre Parkway, Mountain View, CA'
)

# multiple origins
$distance = $geo->distance( 
  origins      => [ 
    'One MetLife Stadium Drive, East Rutherford, New Jersey 07073, United States',
    '602 Jamestown Avenue, San Francisco, California 94124'
  ],
  destinations => '1265 Lombardi Avenue, Green Bay, Wisconsin 54304'
);

# lat and lng
$distance => $geo->distance( 
  origins      => '34.101063,-118.3385319',
  destinations => '34.1613743,118.1676149'
);

Queries $geo to Google Maps distance API and returns list reference that contains each origin to destination mapping.

Data returned from second example above looks like:

[
  {
    'origin_address' => 'MetLife Stadium, 102 Stadium Rd, East Rutherford, NJ 07073, USA',
    'destinations' => [
      {
        'distance' => {
           'value' => 1587392,
            'text' => '1,587 km'
         },
         'status'   => 'OK',
         'duration' => {
           'value' => 60332,
           'text'  => '16 hours 46 mins'
         },
         'address' => '1265 Lombardi Ave, Green Bay, WI 54304, USA'
       }
     ]
   },
   {
     'origin_address' => '602 Jamestown Ave, San Francisco, CA 94124, USA',
     'destinations' => [
       {
         'distance' => {
           'value' => 3615562,
           'text'  => '3,616 km'
         },
         'status' => 'OK',
         'duration' => {
           'value' => 127697,
           'text'  => '1 day 11 hours'
         },
         'address' => '1265 Lombardi Ave, Green Bay, WI 54304, USA'
       }
     ]
   }
]

When you'd like to pass non-ascii string as a location, you should pass it as either UTF-8 bytes or Unicode flagged string.

ua

Accessor method to get and set UserAgent object used internally. You can call env_proxy for example, to get the proxy information from environment variables:

$coder->ua->env_proxy;

You can also set your own User-Agent object:

$coder->ua( LWPx::ParanoidAgent->new );

debug_level

Set to true to get extra debugging information

encode_urlsafe

Encodes url

decode_urlsafe_base64

Decodes url

make_signature

Creates google friendly signature

raw_distance

Returns raw json response from google API request

ACKNOWLEDGEMENTS

I borrowed much of this inital code from Geo::Coder::Google, it sped up much of my work and was a great help. Thanks.

AUTHOR

Lee Carmichael, <lcarmich at cpan.org>

BUGS

Please report any bugs or feature requests to bug-geo-distance-google at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Geo-Distance-Google. I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.

SUPPORT

You can find documentation for this module with the perldoc command.

perldoc Geo::Distance::Google

You can also look for information at:

TODO

  • Add support to distance method for explicit latitude and longtitude parameters (support by hand encoding as 'lat|lng'

  • Add tests for method based changes to attributes avoid, mode and units

  • Add tests for API keys

  • Add tests for imperial units

SEE ALSO

Geo::Distance, Geo::Coder::Google

List of supported languages: http://spreadsheets.google.com/pub?key=p9pdwsai2hDMsLkXsoM05KQ&gid=1

API Docs: http://code.google.com/apis/maps/documentation/distancematrix/,