awesome.. adding the following (exactly as you provided below but
without carriage returns and multiple spaces) works perfectly, no need
for the false northing.
3857=PROJCS["WGS 84 / Pseudo-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["Popular
Visualisation Pseudo Mercator", AUTHORITY["EPSG","1024"]],
PARAMETER["Latitude of natural origin", 0.0], PARAMETER["Longitude of
natural origin", 0.0], PARAMETER["False easting", 0.0], PARAMETER["False
northing", 0.0], UNIT["metre", 1.0], AXIS["Easting", EAST],
AXIS["Northing", NORTH], AUTHORITY["EPSG","3857"]]
thanks very much
-ivan
Le 31/03/2011 5:04 PM, Jon Blower a écrit :
Hi Ivan, all,
Apparently the WKT that should be added to the epsg.properties file in THREDDS
to suppor the EPSG:3857 projection is as follows. If someone can confirm that
this works, this would be very helpful!
PROJCS["WGS 84 / Pseudo-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["Popular Visualisation Pseudo Mercator",
AUTHORITY["EPSG","1024"]],
PARAMETER["Latitude of natural origin", 0.0],
PARAMETER["Longitude of natural origin", 0.0],
PARAMETER["False easting", 0.0],
PARAMETER["False northing", 0.0],
UNIT["metre", 1.0],
AXIS["Easting", EAST],
AXIS["Northing", NORTH],
AUTHORITY["EPSG","3857"]]
(Thanks to Martin Desruisseaux of the Geotoolkit team for this.)
Jon
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