Geo::Hash3pm

"new"

Create a new Geo::Hash object.

    my $gh = Geo::Hash->new;

"precision"

Infer a suitable precision (number of character in hash) for a given lat, lon pair.

    my $prec = $gh->precision( $lat, $lon );

"encode"

Encode a lat, long pair into a geohash.

    my $hash = $gh->encode( $lat, $lon );

You may optionally supply the length of the desired geohash:

    # Very precise
    my $hash = $gh->encode( $lat, $lon, 10 );

If the precision argument is omitted "precision" will be used to provide a default.

"decode_to_interval"

Like "decode" but instead of returning a pair of coordinates returns the interval for each coordinate. This gives some indication of how precisely the original hash specified the location.

The return value is a pair of array refs. Each referred to array contains the upper and lower bounds for each coordinate.

    my ( $lat_range, $lon_range ) = $gh->decode_to_interval( $hash );
    # $lat_range and $lon_range are references to two element arrays

"decode"

Decode a geohash into a lat, long pair.

    my ( $lat, $lon ) = $gh->decode( $hash );