[GRASS-user] Importing USGS' wrs2_descending Shapefile
Nikos Alexandris
nik at nikosalexandris.net
Tue Feb 24 06:28:53 PST 2015
Flash-backing on this one:
[..]
Markus M:
> Yes, overlapping areas can be represented as a topological model
> through M:N mapping: each area can belong to several categories,
> several areas can have the same category. If you want to get the
> coverage for a particular Landsat scene, just select the path and row
> with where="PATH = x and row = y". See also the manual of v.buffer
> for
> a similar example.
So, I guess I'll forget the idea to fully automatise the process of
Landsat border trimming? Can't we just have all of the Path-Row tiles
ready in a compressed GRASS format? Some sort of packed ASCII file which
can be easily imported? No other ideas?
Nikos
Markus N:
>>> Hence, you need to maintain them (AFAIK it is the -c option in
>>> v.in.ogr).
>>> Please correct me if I am wrong.
> For this shapefile, original polygons can not be maintained
> (incorrect
> boundaries, centroids exceeding number of areas).
[..]
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