[Proj] Fwd: proj4 definition for European Forest Map

[Agustin Lobo]

Hi!

The European Forest Map has the following projection (according to a
file distributed along with the file):

Projection: Lambert_Azimuthal_Equal_Area
Parameters:
 False_Easting: 0.000000
 False_Northing: 0.000000
 Central_Meridian: 9.000000
 Latitude_Of_Origin: 48.000000
Linear Unit: Meter (1.000000)
Coordinate system
Geographic Coordinate System:
Name: GCS_User_Defined
Angular Unit: Degree (0.017453292519943299)
Prime Meridian: Greenwich (0.000000000000000000)
Datum: D_User_Defined
 Spheroid: User_Defined_Spheroid
 Semimajor Axis: 6378388.000000000000000000
 Semiminor Axis: 6378388.000000000000000000
 Inverse Flattening: 0.000000000000000000

I've made several trials to set up a custom projection (in QGIS):
1.
+proj=laea +lat_0=48 +lon_0=9 +x_0=0.000 +y_0=0.000 +a=6378388.0000
+b=6378388.000 +rf=0.000 +units=m +no_defs
Rejected by the custom projection tool as erroneous

2.
+proj=laea +lat_0=48 +lon_0=9 +x_0=0.000 +y_0=0.000 +a=6378388.0000
+b=6378388.000 +f=0.000 +units=m +no_defs
Accepted by the custom projection tool but the Properties dialog does
not accept it

3.
+proj=laea +lat_0=48 +lon_0=9 +x_0=0.000 +y_0=0.000 +a=6378388.0000
+b=6378388.000 +units=m +no_defs
Seems to work fine.

I'd like if someone could actually confirm that the third proj4
definition is actually
in accordance with the definition provided in the server and that I
have reproduced at the beginning of this
message. I'm not sure if option 1 and 2 are rejected because they are wrong or
this is a QGIS problem (message sent to the QGIS list remains unanswered).

I also would like answer if there is a document instructing how to
translate PROJCS specifications
into proj4 format.

Thanks!

Agus