-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 31/08/10 16:56, Sylvain Maillard wrote: > Perhaps can you add an extra loop in your scripts for processing your data: > 1 - extract the tarball > 2 - import the raster in R > 3 - and then delete the temporary uncompressed mapset.
Yes - that would be the "crude force" approach. In my case, it would very likely take more time, as there are MANY more layers in the .tar.gz then I use. I am now thinking about extracting all files with "fire" in them and to use this subset as a mapset - I will see if it works. It would be nice, if grass would be able to deal with on-the-fly decompression - not from a .tar.gz file, but from gz compressed files. Cheers, Rainer > it will take a little bit more space but just for one mapset at a time, > and I don't thing the process will be much slower than to access the > files directly into the compressed tarball ... > > you can also buy more hard drive :D > > if you make some benchmark test between different solution I will be > interreted in the results, I'm also working on a huge amound of raster > data within GRASS and R ... I'll do - although I don't think I will do benchmarks at that time. Cheers, Rainer > > regards, > Sylvain Maillard > > Doctorant en Sciences de l'Environnement > Laboratoire Chimie Provence - UMR 6264 / Université de Provence > la Tour du Valat - Centre de recherche pour la conservation des zones > humides méditerranéennes > Le Sambuc > 13200 Arles > France > tél:04.90.97.29.79 > fax:04.90.97.20.19 > www.tourduvalat.org <http://www.tourduvalat.org> > > > > 2010/8/31 Rainer M Krug <r.m.k...@gmail.com <mailto:r.m.k...@gmail.com>> > > On 31/08/10 16:38, Markus Neteler wrote: >> On Tue, Aug 31, 2010 at 4:13 PM, Rainer M Krug <r.m.k...@gmail.com > <mailto:r.m.k...@gmail.com>> wrote: >> ... >>>> I would leave it in GRASS and use the R-GRASS interface and/or the >>>> GDAL-GRASS plugin. See the Wiki for details. >>> >>> I am doing that already - but I don't think that works when I > have the >>> grass mapset compressed as a .tar.gz? > >> I found "archivemount" which apparently lets you >> mount a possibly compressed tarball as a filesystem: > >> http://en.wikipedia.org/wiki/Archivemount >> http://www.linux.com/archive/feature/132196 > > Sounds interesting - I'll look into that. > > Thanks, > > Rainer > > >> Cheers >> Markus > > _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org <mailto:grass-user@lists.osgeo.org> http://lists.osgeo.org/mailman/listinfo/grass-user - -- Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys. (Germany) Centre of Excellence for Invasion Biology Natural Sciences Building Office Suite 2039 Stellenbosch University Main Campus, Merriman Avenue Stellenbosch South Africa Tel: +33 - (0)9 53 10 27 44 Cell: +27 - (0)8 39 47 90 42 Fax (SA): +27 - (0)8 65 16 27 82 Fax (D) : +49 - (0)3 21 21 25 22 44 Fax (FR): +33 - (0)9 58 10 27 44 email: rai...@krugs.de Skype: RMkrug -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAkx+C5QACgkQoYgNqgF2egoSOwCeLJPZ4WGaem4o8k+lvDpT5QiG l4gAnRe9trZfFaD+STl7yByUXA3IYiXS =+YiD -----END PGP SIGNATURE----- _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
