[GRASS-user] question on i.nightlights.intercalibration

[Markus Metz]

On Mon, Aug 26, 2019 at 1:14 AM Gabriel Cotlier <gabiklm01 at gmail.com> wrote:
>
> Dear Markus,
>
> I uninstall and reinstall grass 7.6.1 64 bits and still my log for the
commands
>
> g.region -p
>
> and
>
> g.region -p n=75:00:15N s=65:00:15S w=179:59:45W e=180:00:15E res=00:00:30
>
> are respectively :
>
> (Sun Aug 25 20:01:47 2019)

> g.region -p

> 360 degree EW extent is exceeded by 1.99983 cells
> projection: 3 (Latitude-Longitude)
> zone:       0
> datum:      wgs84
> ellipsoid:  wgs84
> north:      75:00:15N
> south:      65:00:15S
> west:       179:59:45W
> east:       180:00:15E
> nsres:      0:00:30
> ewres:      0:00:30
> rows:       16801
> cols:       43200
> cells:      725803200
> (Sun Aug 25 20:01:47 2019) Command finished (0 sec)

> (Sun Aug 25 20:02:10 2019)
>
> g.region -p n=75:00:15N s=65:00:15S w=179:59:45W e=180:00:15E
res=00:00:30
> 360 degree EW extent is exceeded by 1.99983 cells

Strange, the region defined with "n=75:00:15N s=65:00:15S w=179:59:45W
e=180:00:15E res=00:00:30" should not cause a message like
"360 degree EW extent is exceeded by 1.99983 cells"

Maybe the default region has strange settings. What is the output of
"g.region -d -u -p" ?

Markus M

> projection: 3 (Latitude-Longitude)
> zone:       0
> datum:      wgs84
> ellipsoid:  wgs84
> north:      75:00:15N
> south:      65:00:15S
> west:       179:59:45W
> east:       180:00:15E
> nsres:      0:00:30
> ewres:      0:00:30
> rows:       16801
> cols:       43200
> cells:      725803200
> (Sun Aug 25 20:02:10 2019) Command finished (0 sec)
>
> Are the resulting intercallibrated layers ready for further use outside
grass exported as GeoTIFF or I need to get inside grass without any
messages that 360 degree EW extent is exceeded for the layer to be OK?
>
> further more I would like to ask if maybe the max and min for
intercallibtated layer are somewhere already available to check whether the
max and min I got are correct?
> Thanks a lot for your help.
> Regards,
> Gabriel
>
>
>
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