Thanks I have tried it ,and I found each transfered vector map is not compatible with the real color position of the image......
2009/6/18 Moritz Lennert <[email protected]> > 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
