NAME

       v.proj  - Re-projects a vector map from one location to the current location.

KEYWORDS

       vector, projection, transformation

SYNOPSIS

       v.proj
       v.proj help
       v.proj  [-lz]   [input=name]  location=name  [mapset=name]   [dbase=path]   [output=name]   [--overwrite]
       [--verbose]  [--quiet]

   Flags:
       -l
           List vector maps in input location and exit

       -z
           Assume z co-ordinate is ellipsoidal height and transform if possible
           3D vector maps only

       --overwrite
           Allow output files to overwrite existing files

       --verbose
           Verbose module output

       --quiet
           Quiet module output

   Parameters:
       input=name
           Name of input vector map

       location=name
           Location containing input vector map

       mapset=name
           Mapset containing input vector map

       dbase=path
           Path to GRASS database of input location

       output=name
           Name for output vector map (default: input)

DESCRIPTION

       v.proj allows a user to convert a vector map in a specified mapset of  a  specified  location  (different
       from current) with projection of input location to the vector map in a current mapset of current location
       with projection of current location (both projections are defined by corresponding PROJ_INFO files).

NOTES

       If output is not specified it is set to be the same as input map name.
       If mapset is not specified, its name is assumed to be the same as the current mapset's name.
       If dbase is not specified it is assumed to be the current database. The user only has to specify dbase if
       the source location is stored in another separate GRASS database.

       v.proj  supports  general  datum transformations, making use of the PROJ.4 co-ordinate system translation
       library.

EXAMPLES

       v.proj in=mymap location=latlong mapset=user1

REFERENCES

       PROJ 4: Projection/datum support library.

       Further reading

                      ASPRS Grids and Datum

                      MapRef - The Collection of Map Projections and Reference Systems for Europe

                      Projections Transform List (PROJ4)

SEE ALSO

        r.proj, g.proj, g.setproj, i.rectify, r.stats, v.sample, v.surf.idw, v.surf.rst

AUTHORS

       Irina Kosinovsky, US ARMY CERL
       M.L. Holko, USDA, SCS, NHQ-CGIS
       R.L. Glenn, USDA, SCS, NHQ-CGIS

       Last changed: $Date: 2012-03-30 04:47:33 -0700 (Fri, 30 Mar 2012) $

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       © 2003-2013 GRASS Development Team