Hi Michele !
On 07/03/17 17:27, Michele Zurlo wrote:
Hi I'm Michele and this is my first e-mail in this mailing list and I
hope to find a little help :-)
I'm working to classify some UAV images and I would like to follow the
method proposed by Grippa et al. 2016
<http://proceedings.utwente.nl/367/1/Grippa-An%20Open-Source%20Semi-Automated%20Processing%20Chain%20For%20Urban%20OBIA%20Classification-28.pdf>
working with i.segment.uspo
<https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html>.
So I downloaded and installed the OSGEO Live 9.5 and from GRASS shell I
installed i.segment.uspo
<https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html> and
the required r.neighborhoodmatrix
<https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html>.
Everything went right but when I try to use i.segment.uspo
<https://grass.osgeo.org/grass72/manuals/addons/i.segment.uspo.html> I
get an error message because there is something wrong with
r.neighborhoodmatrix
<https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html>.
This is the error message retrieved trying to use r.neighborhoodmatrix
<https://grass.osgeo.org/grass72/manuals/addons/r.neighborhoodmatrix.html>:
#############################
Traceback (most recent call last):
File
"/home/user/.grass7/addons/scripts/r.neighborhoodmatrix",
line 137, in <module>
main()
File
"/home/user/.grass7/addons/scripts/r.neighborhoodmatrix",
line 123, in main
unique_neighbors_sorted =
gscript.natural_sort(unique_neighbors)
AttributeError: 'module' object has no attribute
'natural_sort'
#############################
I tried to re-install the module but I retrieved the same message.
Someone can help me?
This sounds like OSGeo Live 9.5 contains a version of GRASS GIS that did
not have this natural_sort in the GRASS Python scripting library, yet.
Is using OSGeo Live 10 an option for you ? This contains GRASS 7.0.4
which is the first version that contains natural_sort as a utility function.
Otherwise, it is quite easy to introduce it manually in the script. Copy
the following into
/home/user/.grass7/addons/scripts/r.neighborhoodmatrix, just before the
"def cleanup():" line:
def natural_sort(l):
"""Returns sorted strings using natural sort
"""
convert = lambda text: int(text) if text.isdigit() else text.lower()
alphanum_key = lambda key: [convert(c) for c in
re.split('([0-9]+)', key)]
return sorted(l, key=alphanum_key)
Moritz
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