The computational region (i.e., not the display region in the GUI) is the rectangular section of the world where GIS operations take place. With a few exceptions, all reads/writes to maps take place only within the region. You can set the region extents and resolution in many ways using g.region. You can also save region definitions to disk and call them as needed. For example, you could have a “north” and a “south” saved region and set map operations to alternately work in each of these using g.region region=north or g.region region=south.
Please look over the g.region manual and the general GRASS help for more information on regions. The docs are pretty good.
I do this too and the standard methodology for me is to leave the resolution the same and change the region’s borders. Take a look at the manual of g.region for guides on this, but let’s say I’ve got the following:
I have been trying something like this some time ago, but I could not define region of a mapset as chunk of the whole region.
Is g.region the right tool for this task?
If it is not difficult for you, can you, please, explain the process of doing " define the region of each mapset as a chunk of the whole region " a bit more detailed.
Thank you very very much for your help!!!
I did it!
Daniel , your detailed explanations were very useful, thank you!
P.S. I am using the GUI just to clearly understand the procedure. Now I will try to make scripts that will do this job.
Regards,
Andranik
On Thu, Nov 29, 2012 at 2:46 AM, Markus Neteler <neteler@osgeo.org> wrote:
Now that I have, for example, 4 mapsets with different parts of the main map, and the calculation is done, how can I “see” this parts of map from one mapset (e.g. from PERMANENT) , to gather them together with r.patch ?
Is there a way to do this without exporting maps from each mapset and then importing them again into one mapset?
May be there is a way to change permissions so that PERMANENT could see all maps in other mapsets?
Thank you very very much for your help!!!
I did it!
Daniel , your detailed explanations were very useful, thank you!
P.S. I am using the GUI just to clearly understand the procedure. Now I will try to make scripts that will do this job.
Regards,
Andranik
On Thu, Nov 29, 2012 at 2:46 AM, Markus Neteler <neteler@osgeo.org> wrote:
On Thu, Nov 29, 2012 at 12:58 PM, Helmut Kudrnovsky <hellik@web.de> wrote:
Just one more question.
Now that I have, for example, 4 mapsets with different parts of the main
map, and the calculation is >done, how can I “see” this parts of map from
one mapset (e.g. from PERMANENT) , to gather them >together with r.patch ?
Is there a way to do this without exporting maps from each mapset and then
importing them again >into one mapset?
May be there is a way to change permissions so that PERMANENT could see all
maps in other mapsets?
see g.mapsets - Modifies the user’s current mapset search path. [1]
On Thu, Nov 29, 2012 at 10:43 AM, Andranik Hayrapetyan
<andranik.h89@gmail.com> wrote:
Thank you, it solved all my problems!
Excellent!
Please consider to add a bit of explanations in the
Wiki for the next user (either yourself or suggest here what
to add in the Wiki). Then the gained knowledge doesn't
get lost in the email archive.
Excellent!
Please consider to add a bit of explanations in the
Wiki for the next user (either yourself or suggest here what
to add in the Wiki). Then the gained knowledge doesn’t
get lost in the email archive.