[GRASS-user] Harvesting pixels

[Adrien ANDRÉ]

Dear all,


I have three inputs:
- a pixels of interest raster map
- a road network vector
- an end point

For each network edge, the node which is closest to the end point
(distance along the network) would be called the target (see attached
figure).

The goal is to compute at each target the "harvested pixels" count and
the cumulated harvesting distance.

The steps i foresee are:
 1. Affect to each target it's egde "closest pixels count", and
 2. for each of those pixels, the sum of
   - the pixel to edge distance (a), and
   - the pixel edge closest point distance (b)

Would you know how i could achieve this using GRASS GIS tools?


Many thanks in advance,

regards,


Adrien
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