[Proj] Installation or usage problems

Stéphane SARAGAGLIA stephane.saragaglia at robosoft.fr
Tue Jan 26 02:24:48 PST 2010


Hello everyone,

First of all, thank you for the Proj.4 lib which is useful in the 
painful world of Cartographic Projections.

But I am encountering some troubles using nad files.

- I have downloaded sources 
(http://download.osgeo.org/proj/proj-4.7.0.tar.gz) and datum shift grids 
(http://download.osgeo.org/proj/proj-datumgrid-1.5.zip).
- I have compiled cs2cs with VC6 for Windows.
- I have installed binaries in PATH and set PROJ_LIB to point to nad files.

I want to convert WGS84 coords to French Lambert3 ones.
When I use the following command, all is fine :
$ ./cs2cs.exe +init=epsg:4326 +to +proj=lcc +lat_1=44.10000000000001 
+lat_0=44.10000000000001 +lon_0=0 +k_0=0.999877499 +x_0=600000 
+y_0=200000 +a=6378249.2 +b=6356515 +towgs84=-168,-60,320,0,0,0,0 
+pm=paris +units=m +no_defs
pj_open_lib(epsg): call fopen(C:\Program Files\Pges\proj\nad\epsg) - 
succeeded
5d47'17.2"E 45d12'37.7"N 270
871086.51 329076.60 228.46

But when I use the following one, I obtain wrongs results :
$ ./cs2cs.exe +init=epsg:4326 +to +init=epsg:27563
pj_open_lib(epsg): call fopen(C:\Program Files\Pges\proj\nad\epsg) - 
succeeded
pj_open_lib(epsg): call fopen(C:\Program Files\Pges\proj\nad\epsg) - 
succeeded
5d47'17.2"E 45d12'37.7"N 270
687492.97 323984.26 270.00

The parameters used in the first command line are taken from the epsg 
file used in the second one. I guess I am missing something. Perhaps a 
wrong install or a wrong usage.

Could you give me some advice ?

Regards,

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Stéphane SARAGAGLIA
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