[GRASS-user] Get latest point in 1x1 meters grid

Stefan Gasser stefan.gasser at r3-gis.com
Tue Jun 29 06:34:21 EDT 2010


Hello,

I have a vector map with thousand of points and each of them have a
timestamp attribute. I put a grid of 1x1 meters over the vector map and
picked the latest point of each rectangle with an intersection.

My problem is the size of the grid (2GB), which causes a very long
access time of v.overlay. 

Someone has an idea to get the pointset result faster or in real-time?

best regards
-- 
  Stefan Gasser
  Software Developer
  stefan.gasser at r3-gis.com
  
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