[GRASSLIST:3212] Re: bathymetry

Paul Kelly paul-grass at stjohnspoint.co.uk
Mon Apr 19 04:49:31 EDT 2004

On Mon, 19 Apr 2004, Brent Wood wrote:

> After reprojecting it (with the datum shift) you can create a new GRASS
> mapset for the new projection and import the data.
> I don't believe you can overlay data from different mapsets on the fly
> though.

Just to correct this for the mailing list record...
You can overlay data from different mapsets within a location (i.e. they all
have the same projection) but not from a different location...the whole
GRASS location concept is based around the fact that locations are
incompatible in this way.

You could use viewproj (src.contrib/LM/viewproj) for viewing data from
different locations overlaid, but I haven't tried it and it is old and doesn't
support datum conversions so maybe isn't a lot of use.


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