NAME

       d.where   -  Identifies the geographic coordinates associated with point locations in the active frame on
       the graphics monitor.

KEYWORDS

       display, position, querying

SYNOPSIS

       d.where
       d.where help
       d.where [-1dlwf]  [--verbose]  [--quiet]

   Flags:
       -1
           One mouse click only

       -d
           Output lat/long in decimal degree

       -l
           Output lat/long referenced to current ellipsoid

       -w
           Output lat/long referenced to WGS84  ellipsoid  using  datum  transformation  parameters  defined  in
           current location (if available)

       -f
           Output frame coordinates of current display monitor (percentage)

       --verbose
           Verbose module output

       --quiet
           Quiet module output

DESCRIPTION

       d.where  is  an  interactive program that allows the user, using the pointing device (mouse), to identify
       the geographic coordinates associated with point locations within the current geographic  region  in  the
       active display frame on the graphics monitor.

       Each  mouse  click  will output the easting and northing of the point currently located beneath the mouse
       pointer.  A mouse-button menu is presented so the user knows which mouse buttons to use.  The  output  is
       always printed to the terminal screen; if the output is redirected into a file, it will be written to the
       file as well.

       Mouse buttons:
            Left:   where am i
            Middle: draw to/from here
            Right:  quit this
         The  left mouse button prints the coordinates at the selected point, the middle mouse button allows you
       to query two points (they are connected by a line for convenience). Use the right mouse  button  to  exit
       the module.

NOTES

       This  program uses the current geographic region setting and active frame.  It is not necessary, although
       useful, to have displayed a map in the current frame before running d.where. The -d flag allows the  user
       to  optionally  output  latitude/longitude  coordinates  pair(s)  in  decimal degree rather than DD:MM:SS
       format. The -w flag is only valid if a datum is defined for the current location.   If  the  -f  flag  is
       given  the  x,y frame coordinates of the active display monitor will be returned (as a percentage, 0,0 is
       bottom left).

SEE ALSO

       d.what.rast
       d.what.vect
       g.region
       v.what.rast
       v.what.vect

AUTHORS

       James Westervelt,
       Michael Shapiro,
       U.S. Army Construction Engineering Research Laboratory

       Last changed: $Date: 2013-04-17 22:56:53 -0700 (Wed, 17 Apr 2013) $

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       © 2003-2013 GRASS Development Team

GRASS 6.4.3                                                                                      d.where(1grass)