[PROJ] Supported geographical coordinate formats

Charles Karney charles at karney.com
Thu Jul 2 06:33:12 PDT 2020


One major usability issue with PROJ is that the hemisphere designators
NESW *only* specify the sign of the coordinate.  Thus it's easy for
10W to be interpreted as lat = -10.  Fixing this would required some
replumbing of PROJ since the two horizontal components would need to
be decoded together.

On 7/2/20 9:17 AM, Andreas B wrote:
> Hi,
> 
> Is there any formal description or definition of what kind of
> geographical coordinate format the proj command line tools support
> (input and output)?
> 
> Several styles are presented in the docs, e.g.
> (https://proj.org/apps/cs2cs.html#using-proj-strings)
> 
> 45d15'33.1" 111.5W
> 45d15.551666667N -111d30
> +45.25919444444 111d30'000w
> 
> Any preferred format?
> 
> Thanks,
> Andreas


More information about the PROJ mailing list