---
name: "d.zoom"
section: "1grass"
platform: "linux"
package: "grass-doc"
version: "6.4.4-1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/d.zoom"
---

# d.zoom(1grass)

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

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

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