Hi All,
How can I determine the proper SRID and PROJ4 parameters considering I have
the following projection parameters for my data files (see PARAM for the
North American CRCM grid here below)? Is it documented somewhere within
POSTGIS documentation? Or somewhere within PROJ4 documentation?
Here's the best hack I can come up with for the PROJ4 definition:
Proj4js.defs["SR-ORG:6728"]="+proj=stere +lat_0=49.65698 +lat_ts=60
+lon_0=-96.99443 +k=1 +x_0=-1300000 +y_0=100000 +ellps=WGS84 +datum=WGS84
+units=m +no_defs"; But it is not valid. Need some help or some pointer to
documentation for PROJ4 parameters
Stephane
--------------------------------------------------------------------
Stephane Poirier, M.Sc. Optical Physics
Remote Sensing Application Software Developer
Geography Department, Burnside Hall
McGill University, Montreal, QC, Canada
http://geog.mcgill.ca
[email protected]
Cell. (514) 994-3532
Fax: (514) 509-8833
--------------------------------------------------------------------
PARAM for the North American Canadian Regional Climate Model (CRCM) grid:
"
float yc(yc) ;
yc:units = "m" ;
yc:long_name = "y-coordinate of polar-stereographic
projection" ;
yc:standard_name = "projection_y_coordinate" ;
yc:axis = "y" ;
yc:coordinate_defines = "point" ;
yc:actual_range = 22500.f, 7807500.f ;
float xc(xc) ;
xc:units = "m" ;
xc:long_name = "x-coordinate of polar-stereographic
projection" ;
xc:standard_name = "projection_x_coordinate" ;
xc:axis = "x" ;
xc:coordinate_defines = "point" ;
xc:actual_range = 22500.f, 8167500.f ;
float lon(yc, xc) ;
lon:units = "degrees_east" ;
lon:long_name = "longitude" ;
lon:standard_name = "longitude" ;
lon:actual_range = 160.4761f, 332.2443f ;
float lat(yc, xc) ;
lat:units = "degrees_north" ;
lat:long_name = "latitude" ;
lat:standard_name = "latitude" ;
lat:actual_range = 11.56135f, 87.47531f ;
char polar_stereographic ;
polar_stereographic:straight_vertical_longitude_from_pole =
245.f ;
polar_stereographic:standard_parallel = 60.f ;
polar_stereographic:false_easting = -2790000.f ;
polar_stereographic:false_northing = -8113500.f ;
polar_stereographic:hemisphere_of_standard_parallel = 1.f ;
polar_stereographic:resolution_at_standard_parallel = 45000.f
;
"
Stephane
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