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 Calibrare carte topo GB con reticolo OSNG		  New Topic  Reply to Topic
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gpberlato

Italy
14 Posts
Posted - 10/08/2015 :  07:45:47  Show Profile  Reply with Quote
Come posso georeferenziare carte topografiche inglesi OSNG con coordinate espresse secondo lo standard Ordnance Survey National Grid?
ad es:
TQ 38800 77300
- TQ zona
- 38800 easting in m
- 77300 northing in m

okmap

Italy
2679 Posts
Posted - 10/08/2015 :  11:32:06  Show Profile  Visit okmap's Homepage  Reply with Quote
Usa la proiezione traversa di mercatore ed il datum "Ordnance Survey Great Britain 1936 (England)".
A questo indirizzo trovi un semplice convertitore di coordinate da National grid a WSG84 o OSGB36.
http://www.movable-type.co.uk/scripts/latlong-gridref.html
Esempio tuo:
TQ 38800 77300
Lat = 512837.64N
Lon = 0000003.91W
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