Hi,

I'm new to Grass and Grass development.


I'm writing a script using pygrass that should interact with areas in a raster 
map (output of i.segment). The final goal would be to highlight some of them to 
the user.

But I can't even figure out how get infos from the different segments or even 
the raw pixels.


When instantiating a RasterSegment object 
(https://grass.osgeo.org/grass70/manuals/libpython/pygrass.raster.html#pygrass.raster.RasterSegment)
 and using the method .get(row, col) it gives me -2147483648 for .get(0,0) and 
other values for 'row' and 'col' give 0.

This doesn't make any sense to me, am I missing something ?

(Note that both .exist() and .is_open() give True on the RasterSegment object)


Any help would be appreciated !


Lucas

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