Daniele Romagnoli a écrit :
I'm working with Projected Coordinate Systems.
Actually, I need the WKT definition of the EPSG 9804 (Mercator_1SP).
Can Someone give me this string or tell me how to retrieve it?
If you have an EPSG database installed on yours machine, the following
should work (in theory):
java org.geotools.referencing.factory.epsg.DefaultFactory 9804
However, in the particular case of EPSG 9804 (Mercator_1SP), I don't
think that it will be of any help. Mercator_1SP is not a coordinate
reference system (CRS). It is a projection method. A CRS is a projection
method (like "Mercator_1SP") plus a set of parameters specific to the
area of use.
I guess that you are looking for a "Mercator_1SP" projection applied on
the whole world. The following may work (I didn't tested it):
PROJCS["WGS 84 / Mercator",
GEOGCS["WGS 84",
DATUM["World Geodetic System 1984",
SPHEROID["WGS 84", 6378137.0, 298.257223563,
AUTHORITY["EPSG","7030"]],
AUTHORITY["EPSG","6326"]],
PRIMEM["Greenwich", 0.0, AUTHORITY["EPSG","8901"]],
UNIT["degree", 0.017453292519943295],
AXIS["Geodetic latitude", NORTH],
AXIS["Geodetic longitude", EAST],
AUTHORITY["EPSG","4326"]],
PROJECTION["Mercator_1SP", AUTHORITY["EPSG","9804"]],
UNIT["m", 1.0],
AXIS["Easting", EAST],
AXIS["Northing", NORTH]]
Martin.
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