[GRASS-user] using v.net.path output to update original map

[Christopher Mire]

I have a problem that I not sure how to correctly address.  Basically I have
vector map and I
find some shortest paths on it using v.net.path.  I basically want to keep
track of which lines have
been using in the shortests paths and how many times.  So I suppose I need
to add a column
to original map called traversed, which starts at zero, and is incremented
by one every time
that line is used in a shortest path.

So I have a vector map output from v.net.path, which contains a single
attribute, and have option of
the vector map being a single line, or the lines which were in original map.
Is there a way to match the lines in the original map with the lines in the
shortest path, and update the traversed attribute for that row in the
original map?  Would I have to add traversed column to shortest path map,
get value from original somehow, increment, and then merge vector maps?

Any ideas would be appreciated. Thanks.
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