http://grass.itc.it/grass63/binary/mswindows/native/
2008/7/21 Dylan Beaudette <[EMAIL PROTECTED]>: > On Monday 21 July 2008, milton ruser wrote: >> Dear all, >> >> I have a very large BINARY image (60,000x50,000 pixels) and need to >> generate the distance map from the 1 values. >> When the images are small than my image, I can generate the distance map >> using ArcGis (my image is in .IMG format), but ArcGis return error for this >> large one. >> >> I am running R 2.7.1 under windows/xp. Is there a way of do this job using >> R ou RSaga? (unfortunately I don´t have GRASS installed), and my >> experience with RSAGA is near zero. My computer is 4GB ram. I can load the >> images on ArcGis and Erdas without problem, but I only don´t know how do >> this task. >> > > Try and use GRASS. It is made for these types of operations. Since R is > memory-bound (for most practical purposes) a sequential-access approach like > GRASS should work much better. There is a windows installer for GRASS, or you > can just install the latest QGIS: this comes with GRASS! > > Cheers, > > Dylan > > > -- > Dylan Beaudette > Soil Resource Laboratory > http://casoilresource.lawr.ucdavis.edu/ > University of California at Davis > 530.754.7341 > > > _______________________________________________ > R-sig-Geo mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
