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diff --git a/includes/phpcoord/readme-2.3.txt b/includes/phpcoord/readme-2.3.txt new file mode 100644 index 0000000..ac3b253 --- /dev/null +++ b/includes/phpcoord/readme-2.3.txt @@ -0,0 +1,52 @@ +--------------------------------------------------------------------------
PHPcoord + readme.txt
+ (c) 2005 Jonathan Stott
Created on 11-Aug-2005
+ 2.3 - 24 Aug 2006 + - Changed OSRef->toSixFigureString() so that the eastings and northings + are rounded rather than floored. + 2.2 - 11 Feb 2006 + - Used different algorithm for calculating distance between latitudes + and longitudes - fixes a number of problems with distance calculations + 2.1 - 22 Dec 2005 + - Added getOSRefFromSixFigureReference function + 2.0 - 21 Dec 2005 + - Completely different object design - conversion functions now through + objects rather than static functions + - Updated comments and documentation + 1.1 - 11 Sep 2005 + - Added WGS84/OSGB36 conversions
1.0 - 11 Aug 2005
- Initial version
-------------------------------------------------------------------------- + +PHPcoord is a PHP script that provides functions for handling various +co-ordinate systems and converting between them. Currently, OSGB (Ordnance +Survey of Great Britain) grid references, UTM (Universal Transverse +Mercator) references and latitude/longitude are supported. A function is +also provided to find the surface distance between two points of latitude +and longitude. + +When using the OSGB conversions, the majority of applications use the +WGS84 datum rather than the OSGB36 datum. Conversions between the two +data were added in v1.1 - the conversions should be accurate to within +5m or so. If accuracy is not important (i.e. to within 200m or so), +then it isn't necessary to perform the conversions. + +Examples of how to use the functions provided in phpcoord.php can be +found in the test.php script. + +See http://www.jstott.me.uk/phpcoord/ for latest releases and information. + + +DISCLAIMER + +Accuracy of the co-ordinate conversions contained within the PHPcoord +package is not guaranteed. Use of the conversions is entirely at your +own risk and I cannot be held responsible for any consequences of +errors created by the conversions. I do not recommend using the package +for mission-critical applications. + + +LICENSING + +This software product is available under the GNU General Public License +(GPL). Terms of the GPL can be read at http://www.jstott.me.uk/gpl/. +Any commercial use requires the purchase of a license - contact me at +phpcoord@jstott.me.uk for details.
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