Thank you for your quick answer, Where do you modify the PROJ_DEBUG environment variable? (I am a beginner with the PROJ.4 library) -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/Using-EPSG-codes-with-cs2cs-tp5605047p5605212.html Sent from the PROJ.4 mailing list archive at Nabble.com.