[GRASS-user] Importing USGS' wrs2_descending Shapefile

[Nikos Alexandris]

Flash-backing on this one:

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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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