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Geo-Parse-OSM-0.42
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/ Geo::Parse::OSM::Multipass

NAME

Geo::Parse::OSM::Multipass - Multipass OpenStreetMap file parser

VERSION

version 0.42

SYNOPSIS

Geo::Parse::OSM::Multipass extends Geo::Parse::OSM class to resolve geometry.

use Geo::Parse::OSM::Multipass;

my $osm = Geo::Parse::OSM::Multipass->new( 'planet.osm.gz' );
$osm->seek_to_relations;
$osm->parse( sub{ warn $_[0]->{id}  if  $_[0]->{user} eq 'Alice' } );

METHODS

new

my $osm = Geo::Parse::OSM::Multipass->new( 'planet.osm' );

Creates parser instance and makes two passes: 1 - load node coordinates and create list of multipolygon parts 2 - load those parts

You can add extra custom callback function:

my $osm = Geo::Parse::OSM::Multipass->new( 'planet.osm', pass1 => sub{ ... } );

* pass1 - is called for every object during 1st pass * pass2 - same for second pass * between - before 2nd pass

parse

Same as in Geo::Parse::OSM, but callback object has additional fields for multipolygon objects:

* outer - list of outer rings (ring is a closed list of node ids) * inner - inner rings

latlon

Returns coordinates of node (after 2nd pass)

my ($lat,$lon) = $osm->latlon( '1234578' );

AUTHOR

liosha, <liosha at cpan.org>

BUGS

Please report any bugs or feature requests to bug-geo-parse-osm at rt.cpan.org, or through the web interface at http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Geo-Parse-OSM. 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::Parse::OSM

You can also look for information at:

ACKNOWLEDGEMENTS

LICENSE AND COPYRIGHT

Copyright 2010 liosha.

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.