[Proj] cs2cs - specifying UTM zone on command line

Martin Desruisseaux martin.desruisseaux at geomatys.com
Mon Oct 29 16:04:41 EST 2018

Le 29/10/2018 à 21:14, Kristian Evers a écrit :

> Okay, so basically encoding the zone in the easting? Better, but I
> still think it is weird. At least it produces somewhat sane output. Is
> that operation used by any CRS in the EPSG database?
I found two:

  * EPSG::32600 - WGS 84 / UTM grid system (northern hemisphere)
  * EPSG::32700 - WGS 84 / UTM grid system (southern hemisphere)

Le 29/10/2018 à 21:37, Charles Karney a écrit :

> Is there a provision for encoding the hemisphere (north/south) to
> distinguish between
Not as far as I can see; EPSG uses two different CRS for the two
hemispheres. However if we use the CRS for North hemisphere with
negative Northing (y) values in the South hemisphere, I would expect the
calculation to work (but did not verified).


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