[GRASS-user] <d.zoom.keys> -- shell script for navigation in GRASS monitors from keyboard

[Alexander Muriy]

Dear GRASS'ers :)

Let me introduce (a bit hacky) shell script (
https://raw.github.com/amuriy/GRASS-scripts/master/d.zoom.keys) for
navigating in classic X-monitors with the typical keys (arrows and "-" /
"+"). It works in two modes: from terminal or directly from X-monitor
(requires <xev> and <xdotool> utilities).

Note: tested only with GRASS 6.4.2svn and only in Linux (Ubuntu 10.04).

d.zoom.keys -help
>
> Description:
>  Allows to change the current geographic region settings interactively,
> with a keyboard. Use arrow keys to navigate, "-" to make futher, "+"
> (without "Shift") to make closer.
>
> Keywords:
>  display, zoom
>
> Usage:
>  d.zoom.keys [-txr] [mon=name] [magn=number] [--verbose] [--quiet]
>
> Flags:
>   -t   Use navigation from terminal
>   -x   Use navigation in X-monitor (requires <xev> and <xdotool>)
>   -r   Decrease region resolution during navigation
>  --v   Verbose module output
>  --q   Quiet module output
>
> Parameters:
>    mon   Name of graphics monitor to select (default is currently selected
> monitor).
>   magn   Magnification: default is "1" (1/10 of current region). "magn" >
> 1 gives positive magnification, "magn" < 1 gives negative one.
>
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