[GRASS-user] Error when using r.viewshed.cva

Adam Hoffritz adamhoffritz89 at gmail.com
Wed Aug 10 07:32:54 PDT 2016

Good day,
When trying to run r.viewshed.cva i keep getting this error (see below)
(This is the entire report, you can see the inputs).
Am I missing something obvious? I do not use Grass often, work mostly on
ArcGis but I am moving towards Grass.

r.viewshed.cva input=Clip_haedarlikan at RHIVidsyni
vector=Grass_vidsyniPrufa at RHIVidsyni output=prufa
Note that the routine is constrained to points in the current geographic
Memory manager registering memory in MM_IGNORE_MEMORY_EXCEEDED mode.
WARNING: Illegal filename <vshed_0
>. Character <
> not allowed.
ERROR: AMI_STREAM::write_item failed.
mp/unknown/14496.0/STREAM_baaaaX: No space left on device
Traceback (most recent call last):
  File "C:\Users\Adam\AppData\Roaming\GRASS7\addons/scripts/
r.viewshed.cva.py", line 174, in <module>
  File "C:\Users\Adam\AppData\Roaming\GRASS7\addons/scripts/
r.viewshed.cva.py", line 159, in main
    grass.run_command("r.viewshed", quiet = True,
overwrite=grass.overwrite(), flags=flagstring, input=elev,
output=tempry, coordinates=site[0] + "," + site[1],
  File "C:\Program Files\GRASS GIS
7.0.4\etc\python\grass\script\core.py", line 395, in
    return handle_errors(returncode, returncode, args,
  File "C:\Program Files\GRASS GIS
7.0.4\etc\python\grass\script\core.py", line 313, in
grass.exceptions.CalledModuleError: Module run None
['r.viewshed', '--q', 'observer_elevation=1.75',
'input=Clip_haedarlikan at RHIVidsyni',
'coordinates=445499.9999767,492499.99998253', 'memory=500',
'max_distance=-1', 'output=vshed_0\r',
'target_elevation=1.75'] ended with error
Process ended with non-zero return code 1. See errors in the
(error) output.
(Wed Aug 10 13:48:32 2016) Command finished (2 sec)

Adam Hoffritz
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