Le mardi 15 juillet 2014 09:45:22, orel a écrit : > Hi, > > Spatial references objects can be imported / exported using OGR API to > multiple formats : proj4, WKT, XML... > > Can I use one of these as a format "which describes properly every spatial > reference" ? > > For example, if I use WKT as "internal format" for my application, is there > any chance that a projection described with a proj4 string (or an EPSG code > or whatever...) cannot be properly converted to a WKT string ?
WKT is a reasonable choice. It might be possible that some exotic proj4 projection methods are not mapped as OGRSpatialReference (which directly maps to/from WKT) recognized methods, but unless you've very specific needs, that should not hurt you. The same applies with EPSG codes. Only a few methods used by EPSG SRS have no equivalent in the OGRSpatialReference world. > > My goal is to use a single spatial reference format when storing/loading > work sessions of my application. > > Thanks. > > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Which-format-is-the-best-identify-a-sp > atial-reference-tp5151074.html Sent from the GDAL - Dev mailing list > archive at Nabble.com. > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev -- Geospatial professional services http://even.rouault.free.fr/services.html _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
