[GRASS-user] grass-user Digest, Vol 149, Issue 15

GRASS GRASS user
1

hi Helmut,
thanks a lot i applied the changes you recommended to the .py file and it worked.

cheers
Nick

On Wed, Sep 12, 2018 at 8:01 PM <grass-user-request@lists.osgeo.org> wrote:

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Today’s Topics:

  1. Re: Help with r.landscape.evol (Helmut Kudrnovsky)
  2. Re: Help with r.landscape.evol (Helmut Kudrnovsky)

Message: 1
Date: Wed, 12 Sep 2018 10:23:07 -0700 (MST)
From: Helmut Kudrnovsky <hellik@web.de>
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] Help with r.landscape.evol
Message-ID: <1536772987490-0.post@n6.nabble.com>
Content-Type: text/plain; charset=us-ascii

Nicholas Uwadia wrote

Thanks makus for your reply, i have added more details as required and
also
the error experienced.
operating system :windows 10
GRASS GIS: 7.4

tested here with OSGeo4W-winGRASS 7.4.1

r.landscape.evol --verbose elev=elevation@PERMANENT initbdrk=bedrock@user1
smoothing=no prefx=levol_ outdem=elevation outsoil=soildepth number=1
statsout=D:\temp\testadd\test.txt

##################################################
##################################################

STARTING SIMULATION

Beginning iteration sequence. This may take some time.
Process is not finished until you see the message: ‘Done with everything’

Total number of iterations to be run is 1
Iteration = 1

##################################################

Iteration 1 – step 1: calculating slope

Iteration 1 – step 2: calculating accumulated flow depths

Calculating runoff excess rates (uplsope accumulated cells scaled to
“flowcontrib” map

Iteration 1 – step 3: calculating sediment transport rates (units variable
depending upon process)

Iteration 1 – step 4: calculating divergence/difference of sediment
transport for each process and the actual amount of erosion or deposition in
vertical meters/cell/year

Running soft-knee smoothing filter…
No additional modal smoothing was requested…
ERROR: Unable to load rules file
<c:\users\hkmyr\appdata\local\temp\grass7-hkmyr-8260\tmp3ykzyr>
Traceback (most recent call last):
File “C:\Users\hkmyr\AppData\Roaming\GRASS7\addons/scripts
/r.landscape.evol.py”, line 681, in
main(x, (x + 1), prefx, statsout, region1[‘nsres’],
masterlist);
File “C:\Users\hkmyr\AppData\Roaming\GRASS7\addons/scripts
/r.landscape.evol.py”, line 509, in main
grass.run_command(‘r.colors’, quiet = “True”, map =
netchange, rules = nccolors.name)
File “C:\OSGEO4~1\apps\grass\grass-7.4.1\etc\python\grass
script\core.py”, line 421, in run_command
return handle_errors(returncode, returncode, args,
kwargs)
File “C:\OSGEO4~1\apps\grass\grass-7.4.1\etc\python\grass
script\core.py”, line 332, in handle_errors
returncode=returncode)
grass.exceptions.CalledModuleError: Module run None
[‘r.colors’, ‘–q’, ‘rules=c:\users\hkmyr\appdata\local
\temp\grass7-hkmyr-8260\tmp3ykzyr’, ‘map=levol_ED_rate’]
ended with error
Process ended with non-zero return code 1. See errors in the
(error) output.

confirmed

it seems there is an issue with r.colors reading a temporary color rules
file.

best regards
Helmut

Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Users-f3884509.html

Message: 2
Date: Wed, 12 Sep 2018 11:20:53 -0700 (MST)
From: Helmut Kudrnovsky <hellik@web.de>
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] Help with r.landscape.evol
Message-ID: <1536776453399-0.post@n6.nabble.com>
Content-Type: text/plain; charset=us-ascii

Helmut Kudrnovsky wrote

File “C:\Users\hkmyr\AppData\Roaming\GRASS7\addons/scripts
/r.landscape.evol.py”, line 509, in main
grass.run_command(‘r.colors’, quiet = “True”, map =
netchange, rules = nccolors.name)
File “C:\OSGEO4~1\apps\grass\grass-7.4.1\etc\python\grass
script\core.py”, line 421, in run_command
return handle_errors(returncode, returncode, args,
kwargs)
File “C:\OSGEO4~1\apps\grass\grass-7.4.1\etc\python\grass
script\core.py”, line 332, in handle_errors
returncode=returncode)
grass.exceptions.CalledModuleError: Module run None
[‘r.colors’, ‘–q’, ‘rules=c:\users\hkmyr\appdata\local
\temp\grass7-hkmyr-8260\tmp3ykzyr’, ‘map=levol_ED_rate’]
ended with error
Process ended with non-zero return code 1. See errors in the
(error) output.

it seems

https://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.landscape.evol/r.landscape.evol.py#L509

509 grass.run_command(‘r.colors’, quiet = “True”, map = netchange, rules
= nccolors.name)

https://trac.osgeo.org/grass/browser/grass-addons/grass7/raster/r.landscape.evol/r.landscape.evol.py#L522

522 grass.run_command(‘r.colors’, quiet = “True”, map = new_soil, rules
= sdcolors.name)

that the rules fille for these 2 r.colors command aren’t correctly defined
in the script.

locally changing these 2 lines e.g. to

grass.run_command(‘r.colors’, quiet = “True”, map = netchange, color =
‘viridis’)
grass.run_command(‘r.colors’, quiet = “True”, map = new_soil, color =
‘viridis’)

then the addons script finishes:

r.landscape.evol elev=elevation@PERMANENT initbdrk=bedrock@user1
smoothing=no prefx=levol_ outdem=elevation outsoil=soildepth number=1
statsout=D:\wd\test\log.txt

##################################################
##################################################

STARTING SIMULATION

Beginning iteration sequence. This may take some time.
Process is not finished until you see the message: ‘Done with everything’

Total number of iterations to be run is 1
Iteration = 1

##################################################

Iteration 1 – step 1: calculating slope

Iteration 1 – step 2: calculating accumulated flow depths

Calculating runoff excess rates (uplsope accumulated cells scaled to
“flowcontrib” map

Iteration 1 – step 3: calculating sediment transport rates (units variable
depending upon process)

Iteration 1 – step 4: calculating divergence/difference of sediment
transport for each process and the actual amount of erosion or deposition in
vertical meters/cell/year

Running soft-knee smoothing filter…
No additional modal smoothing was requested…

Iteration 1 – step 5: calculating terrain evolution and new soil depths

Iteration 1 – step 6: writing stats to output file

Outputing stats to textfile: D:\wd\test\log.txt

Cleaning up temporary maps…

Done with Iteration 1

Iterations complete!

Done with everything
(Wed Sep 12 20:16:14 2018) Command finished (43 sec)

best regards
Helmut

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End of grass-user Digest, Vol 149, Issue 15