[R-sig-Geo] Methods for working with LIDAR data

Waichler, Scott R Scott.Waichler at pnl.gov
Wed Jul 28 20:23:24 CEST 2010

> > I have a text file with x, y, z data from a LIDAR survey.  Can someone
> > suggest a method to use to derive a Spatial Pixels or Spatial Grid
> object
> > from these?  The spacing is not exactly regular of course.  The data are
> > dense over all of the domain except for some blank areas, which I would
> > like to designate as NA.
> >
> > I am open to using most packages and functions, but don't want to use
> > GRASS.
> >
> > Scott
> >
> Any particular reason not to use GRASS? In most cases it will scale to
> very
> large point datasets very nicely. Specifically, see the module r.in.xyz

I don't have GRASS installed and my system admin indicated it may be involved to do so.  Plus, I don't know anything about it.  I was hoping to use a native R solution.  I do have GDAL and rgdal installed.


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