[GRASS-user] Combining Rasters Help

Dylan Beaudette dylan.beaudette at gmail.com
Thu Jul 20 14:56:49 EDT 2006


Hi,

I do not recall the exact file, but a constant in the source code defining the 
max_open_files or something like that needs to be changed. Check the list's 
archives for a post by Hamish

Cheers,

Dylan

On Thursday 20 July 2006 11:27, Slover, Kevin wrote:
> Been a while since I have used GRASS, and does it feel good to be back
> using...
>
>
>
> Am using 5.4, the latest compiled for Linux...
>
>
>
> Trying to find the best way to approach combining ~4400 raster images
> into one.  Description are 50 foot ESRI Ascii formatted DEMs imported
> using r.in.arc.  When attempting to use a bash script to combine these
> rasters using r.mapcalc, the error appears "ERROR: Too many open raster
> files"
>
>
>
> Does anyone know the limit of number of rasters that can be opened at
> one time?  Or does anyone have a suggestion on how best to combine (do I
> use r.combine??) the 4400 rasters as painless as possible?
>
>
>
> Thanks!!
>
>
>
> Kevin Slover
>
> Coastal / GIS Specialist
>
> 2872 Woodcock Blvd Suite 230
>
> Atlanta GA 30341
>
> (P) 678-530-0022
>
> (F) 678-530-0044

-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341




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