[GRASS-user] quick way to create a mask and region after zooming in?

[Veronica Andreo]

Hi Vishal

in grass7 you have an option in the gui, in the map display window under
"different zoom options", to set computational region from current display.
So, you zoom to the desired extent of your area and set the region with
that option. You can then save it with g.region -s region=my_region (in the
PERMANENT mapset) and you don't need to apply any mask (unless you have to
mask certain values), cuz all processing  will be done in the computational
region.

HTH :)
Best,

Vero

hi all,
>
> i want to zoom into a region of interest and have that be the extent of a
> mask and a named region.(no single map layer quite covers the region of
> interest)
>
> isn't there a a command or flag with g.region or r.mask to do this? if not
> i'm looking at having to digitize a polygon after zooming in, or manually
> jotting down the corners of the display window and piping it to g.region.
>
> thanks,
> Vishal
>
> --
> Vishal K. Mehta, PhD
> Scientist
> Stockholm Environment Institute - US
> 133 D St Suite F
> Davis CA 95616
> www.sei-us.org
>
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