my .prj file

anthony farrant anthony.k.farrant at GMAIL.COM
Tue May 22 06:02:46 EDT 2007


Hi again,

I've done some translation effort but in vain. I'm using QGis to try to figure
out the correct extent because the one given by gdalinfo is the PIXEL
resolution:

Upper Left  (    0.0,    0.0)
Lower Left  (    0.0, 4251.0)
Upper Right ( 4901.0,    0.0)
Lower Right ( 4901.0, 4251.0)
Center      ( 2450.5, 2125.5)

Of course when projecting a WGS84 point layer on top of this gives a
totally incorrect map with wildly shifted points.

Here is my translation from below .prj values:

+proj=laea +ellps=GRS80 +a=6378137.0 +lat_0=52.0 +lon_0=20.0
+x_0=5071000.0 +y_0=3210000.0 +k_0=0.0174532925199433 +units=m
+no_defs

But with this projection QGis retains the given extent (above), which
is of course wrong because it is the pixel extent while my point layer
has a geographical extent.

Here is the dataset:
http://dataservice.eea.europa.eu/dataservice/metadetails.asp?id=650

I'm really at a loss here and info on the WEB is inconclusive.

Any help appreciated,

Anthony


On 5/22/07, anthony farrant <anthony.k.farrant at gmail.com> wrote:
> Hi people,
>
> I have a tiff with the following weird projection. If anybody could help me out
> to decode this into MapServer-EPSG format, I'd be very grateful. Any link to
> resources are welcome too. I'm a noobie. Thanks!
>
> PROJCS["User_Defined_Lambert_Azimuthal_Equal_Area",
> GEOGCS["GCS_User_Defined",
> DATUM["D_User_Defined",
> SPHEROID["User_Defined_Spheroid",6378137.0,0.0]],
> PRIMEM["Greenwich",0.0],
> UNIT["Degree",0.0174532925199433]],
> PROJECTION["Lambert_Azimuthal_Equal_Area"],
> PARAMETER["False_Easting",5071000.0],
> PARAMETER["False_Northing",3210000.0],
> PARAMETER["Central_Meridian",20.0],
> PARAMETER["Latitude_Of_Origin",52.0],UNIT["Meter",1.0]]
>
> -- A
>



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