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--------------------------------------------------------------------------- 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. \ No newline at end of file