[GRASS-user] vector point density

Hamish hamish_nospam at yahoo.com
Wed Oct 24 19:07:52 EDT 2007


Dr. Manuel Seeger wrote:

> I'm working with terrestrial laser scanning data and have built up a DEM 
> of a Gully system with IDW. Now, I would like to know the density of 
> points in each cell!
> 
> How can I get this?

r.in.xyz method=n

here is an example pic of point density/raster cell for LIDAR data:
  http://hamish.bowman.googlepages.com/grassfiles#xyz
  (click image to enlarge)

you can run r.univar on the "n" map result to gets stats on average density,
etc.


Hamish


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