[GRASS-user] Patch tiles faster

Massimiliano Cannata massimiliano.cannata at supsi.ch
Wed Oct 5 03:06:31 EDT 2011

don't know about speed but maybe take a look at "gdal_merge.py",
it may works out...


On 10/04/2011 07:27 PM, Radim Blazek wrote:
> Hi,
> I need to patch more non overlapping raster maps into one map.
> Currently I am using r.patch, but it is very slow for larger maps
> (about 40 minutes in my case). It is so slow probably because it is
> reading and processing all input tile maps with extent of the output
> map. Is there a faster way how to combine more non overlapping maps?
> Radim
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Dr. Eng. Massimiliano Cannata
Responsabile Area Geomatica
Istituto Scienze della Terra
Scuola Universitaria Professionale della Svizzera Italiana
Via Trevano, c.p. 72
CH-6952 Canobbio-Lugano
Tel: +41 (0)58 666 62 14
Fax +41 (0)58 666 62 09

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