[GRASS-user] Problem in running r.basin

Wed Oct 19 07:52:12 PDT 2016

I lost to install one of the dependencies r.stream.*
Now it run! Never take anything for granted.

It gives some warnings but I read they can be ignored

WARNING: Width for column x set to 255 (was not specified by OGR), some
strings may be truncated!
.
.
.
WARNING: Width for column Slope_ratio_Horton set to 255 (was not specified
by OGR), some strings may be truncated!

Last question: is it possible to save in an external file also the
percentiles of hypsometric/hypsographic curve?

2016-10-19 14:52 GMT+02:00 Priscilla_I <isacco.silvia at gmail.com>:

> Thanks for your patience Margherita,I tried with the manual example but i
> find the same error.
>
> *r.basin map=elevation prefix=my_basin coord=637304.924954,218617.100523
> dir=/tmp/bla threshold=1000*
>
> *SECTION 1 beginning: Initiating Variables. 4 sections total.*
> *SECTION 1a: Mark masked and NULL cells*
> *SECTION 1b: Determining Offmap Flow.*
> *SECTION 2: A* Search.*
> *SECTION 3a: Accumulating Surface Flow with MFD.*
> *SECTION 3b: Adjusting drainage directions.*
> *SEZIONE 4: Chiudendo Mappe.*
> *Closing accumulation map*
> *Writing out only positive flow accumulation values.*
> *Cells with a likely underestimate for flow accumulation can no longer be
> identified.*
> *Closing flow direction map*
> *Loading input raster maps...*
> *Initializing A* search...*
> *A* Search...*
> *Extracting streams...*
> *Thinning stream segments...*
> *Scrittura della mappa raster di output...*
> *Controllo dell'input per i tipi di colonna in corso...*
> *Number of columns: 3*
> *Number of rows: 1*
> *Importazione dei punti in corso ...*
> *Riempimento della tabella in corso...*
> *Si sta ricreando la topologia per il vettore
> <my_basin_elevation_outlet at Mapset6>...*
> *Registrando primitive...*
> *One primitive registered*
> *One vertex registered*
> *Costruendo aree...*
> *0 areas built*
> *0 isles built*
> *Isole allegate...*
> *Centroidi allegati...*
> *Numero di nodi: 0*
> *Numero di primitive: 1*
> *Numero di punti: 1*
> *Numero di linee: 0*
> *Numero di confini: 0*
> *Numero di centroidi: 0*
> *Numero di aree: 0*
> *Numero di isole: 0*
>
> ------------------------------
>
> *An ERROR occurred running r.basin*
> *Please check for error messages above or try with another pairs of outlet
> coordinates*
> *Removing region definition <original>*
>
> 2016-10-19 14:31 GMT+02:00 margherita [via OSGeo.org] <[hidden email]
> <http:///user/SendEmail.jtp?type=node&node=5291470&i=0>>:
>
>>
>>
>> On Wed, Oct 19, 2016 at 12:15 PM, Priscilla_I <[hidden email]
>> <http:///user/SendEmail.jtp?type=node&node=5291456&i=0>> wrote:
>>
>>> Hi Micha,
>>> thanks for you answer, as Margherita wrote "Silvia" is the directory in
>>> which I'd like to save my results, and use r.stream only to check that
>>> coordinates belongs to virtual stream network.
>>> I followed Margherita advices but I already removed all old files and
>>> grass kept in giving me error.
>>>
>>
>> Yes, but it's a different error..
>>
>>
>>> So I thought it could be a problem related to the fact that I was using
>>> GRASS downloaded with Qgis and there were some warnings when I launched it.
>>>
>>
>>> I dowloaded GRASS 7.0.5 and tried to run r.basin with the NC sample
>>> dataset as suggested in an old thread:
>>>
>>> I follow the following procedure
>>> - I create a new mapset in order to not have problems about old files
>>> and overwriting
>>> - I set the region
>>>  * g.region -a raster=elevation at PERMANENT align=elevation at PERMANENT*
>>> - I launch the command
>>>  * r.basin map=elevation at PERMANENT prefix=b coordinates=637304,218585
>>> dir=\tmp\test threshold=40*
>>>
>>> it breaks with the error
>>> *An ERROR occurred running r.basin*
>>> *Please check for error messages above or try with another pairs of
>>> outlet coordinates*
>>> *Removing region definition <original>*
>>>
>>
>> Can you try with the example in the manual?
>>
>> https://grass.osgeo.org/grass70/manuals/addons/r.basin.html
>>
>> g.region raster=elevation -p
>> r.basin map=elevation prefix=my_basin coord=637304.924954,218617.100523 \
>>  dir=/tmp/test threshold=1000
>>
>>
>> Regards,
>>
>> --
>> Margherita Di Leo
>>
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