[Qgis-user] Custom CRS in PROJCS

[Alex Mandel]

On 06/11/2010 09:14 AM, Agustin Lobo wrote:
> Hi!
> 
> The projection of the DEM of Europe
> http://www.eea.europa.eu/data-and-maps/data/digital-elevation-model-of-europe
> 
> is defined as
> 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]]
> 
> How can this be translated into the proj4 syntax that can be use in
> QGIS to define
> a Custom CRS?
> 
> Thanks
> 
> Agus

Looks a lot like
epsg:3035
+proj=laea +lat_0=52 +lon_0=10 +x_0=4321000 +y_0=3210000 +ellps=GRS80
+units=m +no_defs
http://spatialreference.org/ref/epsg/3035/

Using the above mentioned website you can see how things map.

Also the http://trac.osgeo.org/proj/wiki/GenParms
shows you how build a proj4 statement.

+proj=laea +lat_0=52 +lon_0=20 +x_0=5071000 +y_0=3210000 +ellps=GRS80
+units=m +no_defs
I believe this would do it for you, but you better double check.

Thanks,
Alex