Geo::Coordinates::OSGB Geo::Coordinates::OSGB::Grid Geo::Coordinates::OSGB::Maps ---------------------------- Geo::Coordinates::OSGB provides routines to convert latitude and longitude coordinates to and from transverse Mercator grid references; the routines are designed for use with the British national grid. - The OSGB module provides routines to convert between latitude/longitude coordinates in the WGS84 or OSGB36 models and the British National Grid. - The Grid module includes some useful extra routines to parse and format grid references in a variety of popular forms (including which map your point appears on). - The Maps module provides data for British maps. Note that due to the nature of this type of conversion, the conversions are only really useful in the vicinity of the British Isles. If you are elsewhere on the planet you need an implementation designed for your neighbourhood. CHANGES: please note that if you are upgrading from V2.09 or earlier the semantics and interface have changed slightly. - The default lat/lon model is now WGS84. - The functions `shift_ll_into_WGS84` and `shift_ll_from_WGS84` are no longer provided (or needed). - The functions formerly provided by OSTN02.pm are integrated into OSGB.pm, so the subroutines `OSGB36_to_ETRS89` and `ETRS89_to_OSGB36` are no longer provided (or needed). - The functions to parse and format grid references are moved to OSGB/Grid.pm. - The functions to parse and format lat/lon are removed, because they are better provided by other modules. For more details, see the section on "Upgrading" in Background.pod INSTALLATION This package installs in the regular Perl way. You don't need the C compiler and as far as I know there are no platform dependencies. Either use your local package tool, or just try [sudo] perl -MCPAN -e "install Geo::Coordinates::OSGB" For the die hards, the package can also be installed by hand; just unzip it to some temporary home, then do the usual thing: Perl Makefile.PL make make test [sudo] make install The full suite of tests takes about 1 second on my machine. You may or may not need sudo depending on how you have set up your system. DEPENDENCIES perl 5.08 or better COPYRIGHT AND LICENCE Copyright (C) 2002-2017 Toby Thurston OSTN02 transformation data included in this module is freely available from the Ordnance Survey but remains Crown Copyright (C) 2002 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. All feedback gratefully received.