[GRASS-dev] adding units and vertical datum metadata to raster maps

Michael Barton michael.barton at asu.edu
Mon May 21 17:03:54 EDT 2007

This makes perfect sense. I didn't think it through.


On 5/21/07 1:28 PM, "Paul Kelly" <paul-grass at stjohnspoint.co.uk> wrote:

> On Mon, 21 May 2007, Michael Barton wrote:
>> Any chance that vertical units will show up in g.proj? That's where your
> Vertical units apply only to a particular map in a particular mapset, not
> to all the mapsets in a location like horizontal units (i.e. the
> location's co-ordinate system do). And it's perfectly valid to have
> different elevation maps in different units in the same mapset and to
> have to convert between them (e.g. ellipsoidal height from GPS and geoid
> height above sea level). I can't really see how the location co-ordinate
> system definition could easily be extended to support units for the 3rd
> dimension :/
> Paul

Michael Barton, Professor of Anthropology
School of Human Evolution & Social Change
Center for Social Dynamics and Complexity
Arizona State University

phone: 480-965-6213
fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton 

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