GB Grid Reference to Lat/Long converter
Error: If alpha used, there must be an even number of digits
Search argument is: ?pagename=St_Mary's_Church,_Acton¶ms=SJ+631%2C531_region%3AGB_scale%3A25000
How to use this resource |
Usage log |
is a grid reference anyway?
Code derived from convert.c found among Tony Fisher's files.
See also this interactive guide to the National Grid.
Copyright © 2005 - 2011
Roger W Haworth
and several others
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public
as published by the Free Software Foundation; either version 2
of the License, or any later version.
This program is distributed in the hope that it will be useful, but without
; without even the implied warranty of merchantability
fitness for a particular purpose
. See the GNU General Public
for more details.
| ||compared with geohack.php and includes as at 2011 Feb 23|
|cooerr.php ||this file, included by coor_g.php on errors||new|
|coor_g.php ||OSGB36 → WGS84 converter|
Roger Haworth's own work. All the following are by others
|geohack.php ||map sources display||can use geotemplate.txt for testing|
|geo_param.php ||included by geohack.php||same|
|helm_gb.php ||required by transversemercator.php||new|
|llfuncsm.php ||required by coor_g.php||new|
|mapsources.php ||included by geohack.php||uses WGS2OSGB() and generates $osgb36_6fig|
|transversemercator.php ||required by mapsources.php||added WGS2OSGB|