HPGN Datum? (fwd)

[Didrik Pinte]

Le mardi 26 avril 2005 à 00:57 -0700, Dean C. Mikkelsen a écrit :
> Hi Didrik,
> 
> In the epsg file, for NTF II, I get the following:
> 
> # NTF (Paris) / France II
> # Unable to translate coordinate system into PROJ.4 format.
> 
> I could not find your code 27572.
> 
> Let me suggest a work-around. It may not be popular, but it should solve
> the problem for you. 
> 
> In the epsg file, add the following line of code:
> 
> <27572> +proj=lcc +lat_0=18.000000000 +lon_0=-77.000000000 +k=0.99987742
> +x_0=600000  +y_0=2200000 +ellps=clrk66  +towgs84=-168,-60,320,0,0,0,0
> +units=m  no_defs <>
> 
> This should resolve the problem.
> 
> Let me know what happens.
> 
> Kind regards,
> Dean

What version of proj do you use ?

Here is the output of my /usr/share/proj/epsg file :

# NTF (Paris) / Lambert zone II (corrected by DP : +pm=paris is wrong)
<27572> +proj=lcc +lat_1=46.7999999999999997 +lat_0=46.7999999999999997  +lon_0=2.3372291666666669 +k_0=0.99987742 +x_0=600000 +y_0=2200000 +a=6378249.2000000002 +b=6356514.9999041939 +towgs84=-168,-60,320,0,0,0,0 +units=m +no_defs  <>


What is the difference with the parameters you propose ?

Didrik
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