[Proj] EPSG:28992 to EPSG:23031 conversion

[Kristian Thy]

On Thu, Oct 09, Mikael Rittri wrote:
> I looked in the EPSG database and found three transformations that could be useful. 
> 
> Name               | Code | Accuracy | Parameters for cs2cs 	
> ED50 to WGS 84 (1) | 1133 |   10 m   | +towgs84=-87,-98,-121
> ED50 to WGS 84 (2) | 1134 |    6 m   | +towgs84=-87,-96,-120
> ED50 to WGS 84 (32)| 1999 |    3 m   | +towgs84=-83.11,-97.38,-117.22,0.005693,-0.04469,0.04428,1.218

Newbie question - where would one look to find these numbers? I am aware
of the EPSG file that ships with for instance mapserver, but where can I
find the database you used here?

\\kristian
-- 
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