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.

RELATED TO d.zoom…

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 10:42:51 +0100 (Tue, 08 Nov 2011) $

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