07-11-2014
Thank you - that worked great!
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LEARN ABOUT DEBIAN
geo::osm::tiles
Geo::OSM::Tiles(3pm) User Contributed Perl Documentation Geo::OSM::Tiles(3pm)
NAME
Geo::OSM::Tiles - Calculate tile numbers for OpenStreetMap
SYNOPSIS
use Geo::OSM::Tiles qw( :all );
$zoom = 13;
$lat = 49.60055;
$lon = 11.01296;
$tilex = lon2tilex($lon, $zoom);
$tiley = lat2tiley($lat, $zoom);
$path = tile2path($tilex, $tiley, $zoom);
$tileurl = "http://tile.openstreetmap.org/$path";
DESCRIPTION
This module provides functions for calculating the path to a map tile at OpenStreetMap out of geographic coordinates. The path of a tile
at OSM has the form "$zoom/$tilex/$tiley.png". The numbering scheme is documented in the OSM wiki, see the link below.
"lon2tilex($lon, $zoom)"
Returns $tilex for the tile at longitude $lon and zoom level $zoom. The longitude must be in the range "-180.0 <= $lon < 180.0". The zoom
level must be a non-negative integer.
"lat2tiley($lat, $zoom)"
Returns $tiley for the tile at latitude $lat and zoom level $zoom. The latitude must be in the range "-85.0511 <= $lat <= 85.0511". The
zoom level must be a non-negative integer.
"tile2path($tilex, $tiley, $zoom)"
Composes the path to the tile at $tilex, $tiley, and $zoom at the OSM server. $tilex and $tiley must be integers in the range
"0..2**$zoom-1". The supported range of zoom levels depends on the tile server. The maximum zoom for the Osmarender layer is 17, it is 18
for the Mapnik layer.
"checklonrange($lonmin, $lonmax)"
Checks whether $lonmin and $lonmax are within the allowed range of the longitude argument to "lon2tilex". Returns "($lonmin, $lonmax)"
unchanged if they are ok or corrected values if not.
"checklatrange($latmin, $latmax)"
Checks whether $latmin and $latmax are within the allowed range of the latitude argument to "lat2tiley". Returns "($latmin, $latmax)"
unchanged if they are ok or corrected values if not.
SEE ALSO
<http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames>
AUTHOR
Rolf Krahl <rotkraut@cpan.org>
COPYRIGHT AND LICENCE
Copyright (C) 2008-2010 by Rolf Krahl
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.8 or,
at your option, any later version of Perl 5 you may have available.
perl v5.14.2 2010-05-15 Geo::OSM::Tiles(3pm)