[gdal-dev] Lambert 93 problem with GDAL 1.11.0

Even Rouault even.rouault at mines-paris.org
Thu Jul 17 11:55:17 PDT 2014


Le jeudi 17 juillet 2014 16:31:42, Frédéric Trastour a écrit :
> Hi,
> 
> It seems that in your wkt standard_parallel_1 et standard_parallel_2 values
> are inverted. Take a look at :
> http://spatialreference.org/ref/epsg/2154/prettywkt/

In LCC_2SP, the roles of StdP1 and StdP2 can be switched indifferently, so the 
WKT is OK.

Actually I've put the WKT in a lambert93.wkt file and tested with the false 
easting, northing and observed that the result is the central meridian, 
latitude of origin :

$ gdaltransform -s_srs lambert93.wkt -t_srs EPSG:4171
700000 6600000           
3 46.4999999999999 0

So that looks OK.

Are you sure the data is correct and/or consistant with the projection ?

Even

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