chapmang / osconverter Goto Github PK
View Code? Open in Web Editor NEWPHP Library for converting between OSGB grid references and WGS84 Lat/Lon values
PHP Library for converting between OSGB grid references and WGS84 Lat/Lon values
I've tested the code to convert 'SU9651377133' to a lat/lon
OSGridToLatLong() produces:
51.484418907155, -0.60988800924001
streetmap.co.uk produces
51.48492433376743,-0.6114386414738538
https://streetmap.co.uk/idgc?x=496621&y=177078
Am I comparing like with like?
Could the difference be down to the National Grid using the OSGB36 Datum which fits more closely to the UK, whereas systems, like GPS, use the WGS84 Datum?
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