On 18/06/09 14:59, maven apache wrote: > > > 2009/6/18 Moritz Lennert <[email protected] > <mailto:[email protected]>> > > On 18/06/09 14:31, maven apache wrote: > > Also I found that I can see only five color from the tiff > > swi.tiff, and yesterday I get five category with the same > > steps(import and composite then calculate ), they are > > "0 > > 9321 26425 31744 32736 ";, but today it change to six!! > > > > Maybe I remembered it wrongly. (*^__^*) > > > > > > And acturlly I want to extract each color and export them > to a > > vector map, I am looking the proper commond. > > > > It seems that there is no corresponding command to achieve this > goal？ > > > Please start by reading: > > http://grass.osgeo.org/grass64/manuals/html64_user/rasterintro.html > http://grass.osgeo.org/grass64/manuals/html64_user/vectorintro.html > > The command you are looking for is r.to.vect (I see it is not mentioned > in the rasterintro. Should be...). > > It seems that the r.to.vect is to transfer the hole raster map to a > vector,but I want to transfer each category to a vector....
The easiest solution is probably a combination of r.to.vect + v.extract. Moritz _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
