NAME

       d.zoom  - Allows the user to change the current geographic region settings interactively, with a mouse.

KEYWORDS

       display, zoom

SYNOPSIS

       d.zoom
       d.zoom help
       d.zoom   [-fphjr]  rast=string[,string,...]   [vector=string[,string,...]]    [zoom=float]    [--verbose]
       [--quiet]

   Flags:
       -f
           Full menu (zoom + pan) & Quit menu

       -p
           Pan mode

       -h
           Handheld mode

       -j
           Just redraw given maps using default colors

       -r
           Return to previous zoom

       --verbose
           Verbose module output

       --quiet
           Quiet module output

   Parameters:
       rast=string[,string,...]
           Name of raster map

       vector=string[,string,...]
           Name of vector map

       zoom=float
           Magnification: >1.0 zooms in, <1.0 zooms out
           Options: 0.001-1000.0
           Default: 0.75

DESCRIPTION

       d.zoom allows the user to interactively adjust the settings of the  current  geographic  region  using  a
       pointing device such as a mouse.  Like g.region, d.zoom re-defines the settings of the geographic region.
       However,  d.zoom allows the user to change the current region settings interactively, by either outlining
       the new region perimeter with a mouse, unzoom or pan the region. The graphics display is updated  by  the
       module.

       After the user types the command d.zoom a mouse-button menu will appear directing the user.

       Additionally the region settings can be modified by running g.region.

NOTES

       Although  it  is  not  necessary  that  the user display a map in the active display frame before running
       d.zoom, it is helpful to do this  for  reference.  Using  parameter  -f  integrate  a  pan  function,  -h
       facilitates the use for handhelds.

SEE ALSO

       d.erase
       d.rast
       d.vect
       g.region

AUTHOR

       Michael Shapiro, U.S. Army Construction Engineering Research Laboratory
       Improvements by Huidae Cho and Markus Neteler

       Last changed: $Date: 2011-11-08 01:42:51 -0800 (Tue, 08 Nov 2011) $

       Full index

       © 2003-2013 GRASS Development Team

GRASS 6.4.3                                                                                       d.zoom(1grass)