Ubuntu Manpage: g.setproj - Interactively reset the location's projection settings.

NAME

       g.setproj  - Interactively reset the location's projection settings.

KEYWORDS

       general, projection

SYNOPSIS

       g.setproj
       g.setproj help
       g.setproj  [--verbose]  [--quiet]

DESCRIPTION

       Allows  a user to create a PROJ_INFO file in the PERMANENT mapset of the current location.
       PROJ_INFO file is used to record the projection information associated with the  specified
       mapset.

NOTES

The user running g.setproj must own the PERMANENT mapset and it must be currently
selected. It is highly recommended to run g.setproj after creating a new location so that
conversion programs (such as v.proj) can be run.

The user will be prompted for the projection name. Most projections are supported. The
PROJ.4 abbreviations for the names are used with two exceptions, viz. 'll', for latitude /
longitude geographic co-ordinates, and 'stp', for the State Plane Co-ordinate system (used
in the USA).

After the projection name, the user will be asked for a geodetic datum. If no datum
transformation support is needed, the question may be answered with no, and no datum will
be specified in the PROJ_INFO file. If this is the case the user must specify the
ellipsoid (model of the curvature of the earth) to be used, otherwise it is determined by
the datum being used.

If the datum or ellipsoid required are not listed within this program, the
user/administrator may add the definition to the files datum.table, datumtransform.table
and ellipse.table in the $GISBASE/etc/ directory.

Depending on the projection selected, the user will then be prompted for the various other
parameters required to define it.

The projections of aea, lcc, merc, leae, leac, and tmerc will generate a request to the
user for the prime meridian and standard parallel for the output map.

AUTHOR