[R-sig-Geo] How to work with big images (>1GB)

nikos ves vesnikos at gmail.com
Tue Jun 5 17:21:51 CEST 2012


Here's an interesting post[1] on a successfully use of gdal tools that
might give you some pointers on how to proceed!

Ves Nikos

[1] http://casoilresource.lawr.ucdavis.edu/drupal/node/1033


On Mon, 2012-06-04 at 20:21 +1000, Michael Sumner wrote:
> Both the rgdal and raster packages can read from raster files "on demand"
> without creating external copies, I would have a closer look at them.
> 
> Also, the GDAL VRT format is a great way to tile a raster without copying
> and GDAL itself has tools for that.
> 
> Cheers, Mike
> 
> On Monday, June 4, 2012, Matthias Bösling wrote:
> 
> > Dear list,
> >
> > does anyone knows how to work with big spacial image with a size of more
> > than 1 GB? I tried to tile the image in multiple smaller tiles but the
> > multiple call of the function 'writeRaster' of the package 'raster' leads
> > to crashes of the RGui. How do you solve the problem with big images or
> > are ther no possiblities to work in r with big images yet?
> >
> >
> > Thanks and best regards,
> > Matthias Bösling
> >
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> 
> 
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