[GRASS-dev] terracost and large files more generally

[Francesco Paolo Lovergine]

On Sat, Apr 07, 2007 at 03:23:11PM +0200, Markus Neteler wrote:
> On Sat, Apr 07, 2007 at 08:13:39AM -0500, Gerald Nelson wrote:
> > While you (plural) are cranking on the next release, it's probably not the best time to ask but... 
> > 
> > - would it be possible to add the terracost functionality to r.cost (http://www.bowdoin.edu/~ltoma/research.html). My impression is that for a C programmer it would be fairly easy. 
> > 
> > - file size limitations issues. I'm bumping up against a 2 gb limit in r.out.arc. We're using grass6.3, compiled with large file support and we can't export files that would be larger than 2 gb. My postdoc (who knows java but not C) and I looked at the source code for r.out.arc and couldn't see any obvious reason why there would be a size limit.
> >
> 
> It would be good to use this as motivation to better document
> the needed steps as already drafted here:
> http://grass.gdf-hannover.de/wiki/Large_File_Support
> 

I would also add to that page that some exporting/inporting formats have their 
own intrinsic limitations, see for instance:

http://www.gdal.org/formats_list.html

-- 
Francesco P. Lovergine