[GRASS-user] i.sentinel.import imports empty maps

[Veronica Andreo]

Suspicion confirmed, this was a map imported with i.sentinel.import in
latlong location. It forces a resolution of 20 degrees, instead of the
equivalent of 20m in degrees

GRASS 7.9.dev (latlong_wgs84):~ > r.info T21JYM_20200126T134201_B11_20m
 +----------------------------------------------------------------------------+
 | Map:      T21JYM_20200126T134201_B11_20  Date: Wed Jan 29 11:09:18 2020
   |
 | Mapset:   sentinel2                      Login of Creator: vandreo
  |
 | Location: latlong_wgs84
   |
 | DataBase: /home/vandreo/grassdata
   |
 | Title:
  |
 | Timestamp: 26 Jan 2020 13:49:32.751425
  |
 |----------------------------------------------------------------------------|
 |
   |
 |   Type of Map:  raster               Number of Categories: 0
  |
 |   Data Type:    FCELL
   |
 |   Rows:         1
   |
 |   Columns:      1
   |
 |   Total Cells:  1
   |
 |        Projection: Latitud - Longitud.
  |
 |            N:        20S    S:        40S   Res:    20
  |
 |            E:        40W    W:        60W   Res:    20
  |
 |   Range of data:    min = NULL  max = NULL
  |
 |
   |
 |   Data Description:
   |
 |    generado por r.proj
  |
 |
   |
 |   Comments:
   |
 |    r.proj --quiet location="temp_import_location_97485" mapset="PERMANE\
  |
 |    NT" input="T21JYM_20200126T134201_B11_20m" method="bilinear" memory=\
  |
 |    500 resolution=20.0
  |
 |
   |
 +----------------------------------------------------------------------------+

El mié., 29 ene. 2020 a las 11:20, Veronica Andreo (<veroandreo at gmail.com>)
escribió:

> Hi all,
>
> I'm using i.sentinel.import with -r flag to import sentinel scenes into a
> latlong location. No matter if I use, extent=region or extent=input, I get
> empty maps imported.
>
> Estimated target resolution for input band
> <T21JYM_20200126T134201_B8A_20m>: 0.00018570053194443554
> Using given resolution for input band <T21JYM_20200126T134201_B8A_20m>:
> 20.0
> Reprojecting <T21JYM_20200126T134201_B8A_20m>...
> ERROR: The reprojected raster <T21JYM_20200126T134201_B8A_20m> is empty
>
> Meanwhile a normal r.import with input and output, imports the map
> properly. Is it possible that i.sentinel.import tries to set a 20
> resolution also in a lat long location???That would be degrees then, and
> hence the empty maps...
>
> BTW, I noted that grass-addons repo does not have the issues activated.
> With trac closed for new tickets, I think it is necessary to activate
> issues in grass-addons too
>
> Thanks much in advance
>
> Vero
>
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