[GRASS-user] 7.7.dev: No raster map displays [UPDATE]

Helmut Kudrnovsky hellik at web.de
Wed Jul 24 12:54:10 PDT 2019


Helmut Kudrnovsky wrote
> Rich Shepard wrote
>> On Wed, 24 Jul 2019, Helmut Kudrnovsky wrote:
>> 
>>> If you want that analytical extent matches your vector extent _and_ the
>>> DEM
>>> resolution,  use g.region -a raster=DEM vector=yourvector.
>> 
>> Helmut,
>> 
>> I've read the manual and missed understanding that it can be defined by
>> both
>> raster and vector maps.
>> 
>> I don't think this is necessary. I can set the region to the DEM and the
>> MASK to the vector map so r.slope.aspect and r.flow will operate only
>> within
>> the mask regardless of the overall region size. Unless I'm mistaken about
>> the function of the MASK.
>> 
>> Best regards,
>> 
>> Rich
>> _______________________________________________
>> grass-user mailing list
> 
>> grass-user at .osgeo
> 
>> https://lists.osgeo.org/mailman/listinfo/grass-user
> 
> As you mentioned in your mail above:
> 
>>DEM resolution: 3 3 
>>analytical_area resolution: 2.99763360 3.00134608 
> 
> '>g.region vect=analytical_area res=3 -p' did not change the floating
> >point 
> {values to integer 3s. 
> 
> Do you see your mismatch?
> 
> If you do g.region vect=yourvector res=whatever it tries to close as
> possible to the resolution, but it's not aligned with your raster.
> 
> Some raster modules will issue some warnings or errors. 
> 
> Moritz gave you a good explanation about region settings, masks etc aorund
> the end of last year. 
> 
> 
> 
> 
> -----
> best regards
> Helmut
> --
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See here:

https://www.mail-archive.com/grass-user@lists.osgeo.org/msg36351.html



-----
best regards
Helmut
--
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