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

[Dylan Beaudette]

On Wednesday 28 July 2010, Waichler, Scott R wrote:
> > > 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.
>
> Scott

Understandable. There is a fairly simple Windows installer available. But if 
it is an R-based solution you are looking for, perhaps there are others on 
the list with more ideas.

-- 
Dylan Beaudette
Soil Resource Laboratory
http://casoilresource.lawr.ucdavis.edu/
University of California at Davis
530.754.7341