Project data

In GRASS, if you want to change the projection of a map, or, more precisely, create a copy of the map in another projection, you have to create a new location (see the chapter called Set-up your location) with the new projection and coordinate system you wish to use. Then, according to the type of map, you can use the following commands to project the map from its original location to the new one:

• r.proj for raster maps

• v.proj for vector maps

• s.proj for site maps

If for any reason a location does not contain projection information (stored in the PROJ_INFO and PROJ_UNITS files), you can create it with the g.setproj command.