[GRASS-user] r.sum from maps in different mapset

Rainer_M_Krug · January 12, 2012, 12:13pm

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Hi

just a quick question:

I have to calculate r.sum from files from different mapsets - it seems
that there is no way of specifying the mapset or the raster map - is
this correct?
So I have to options:

1) modify the mapset serachlist --- r.sum --- reset the searchpath
or
2) change to other mapset --- r.sum --- change back to other mapset

I assume 1) is the better way?

Are there other options?

Cheers,

Rainer

- --
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation
Biology, UCT), Dipl. Phys. (Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel : +33 - (0)9 53 10 27 44
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email: Rainer@krugs.de

Skype: RMkrug
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hellik · January 12, 2012, 6:15pm

Hi,

I have to calculate r.sum from files from different mapsets - it seems
that there is no way of specifying the mapset or the raster map - is
this correct?

in the wxgui
(http://grass.osgeo.org/grass64/manuals/html64_user/wxGUI.html),
under settings or gui-preferences mapsets of an location can be
(de)activated to be
findable in the wxgui.

see also

g.mapset -Changes current mapset:
http://grass.osgeo.org/grass64/manuals/html64_user/g.mapset.html

g.mapsets - Modifies the user's current mapset search path:
http://grass.osgeo.org/grass64/manuals/html64_user/g.mapsets.html

HTH
Helmut

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Hamish · January 12, 2012, 9:39pm

mapname@othermapset

use 'g.mapsets -s' to select mapsets to put in the
search path (in which case you can skip the
@othermapset part, but it don't hurt to explicitly
add that)

mapsets not in the current search path can still
be accessed by @othermapset.

Hamish

Rainer_M_Krug · January 13, 2012, 8:32am

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On 12/01/12 22:39, Hamish wrote:

mapname@othermapset

use 'g.mapsets -s' to select mapsets to put in the search path (in
which case you can skip the @othermapset part, but it don't hurt to
explicitly add that)

mapsets not in the current search path can still be accessed by
@othermapset.

Thanks Hamish - that is exactly what I was looking for (the @) and it
is now working nicely.

I initially tried it as well, but it did not work - but I tried to
access a map which did not exist in the other mapset - shame on me.

Thanks,