[GRASS5] [bug #2786] (grass) d.zoomed in and out too much, now can't get back exactly

[Michael Barton]

Hamish,

As I understand the wish, it is for a more or less automatic way of doing
the following (from your post below):

g.region save=home
d.zoom
g.region home
d.redraw

This only works if you remember to save the region to "home" before zooming.
ArcView and MapInfo both have a 'return to previous zoom' command. I also
would find it handy--though because of the ability of GRASS to save a named
region this function wouldn't be at the top of my wish list.

In GRASS, this would require d.zoom to execute a g.region save=temp_region
each time it resets the region. Then a 'zoom to previous' could call up the
saved temporary region and reset the region accordingly.

Michael


On 12/6/04 3:23 PM, "Hamish" <hamish_nospam at yahoo.com> wrote:

>>>> this bug's URL: http://intevation.de/rt/webrt?serial_num=2786
>>>> ------------------------------------------------------------------
>>>> 
>>>> Playing with g.zoom, after a while one wants to get back to the way
>>>> everything was in the beginning. But there is no way other than
>>>> d.mon stop=x1; g.region ...; d.mon x1
>>>> So perhaps d.zoom could have a new -r: restore option, to restore
>>>> the magnification/region used when the monitor was born.
>>> 
>>> Excellent idea. I happen to forget to save my starting region and
>>> then getting exactly back to it is a pain. If possible - please.
>> 
>> Probably a long standing wish, but: Volunteer(s) needed...
> 
> 
> ? I'm not sure I fully understand the problem.
> 
> 
> restore the default region: (stored in PERMANENT/DEFAULT_WIND)
> g.region -d
> d.redraw
> 
> 
> or
> g.region save=home
> d.zoom
> g.region home
> d.redraw
> 
> 
> or
> d.zoom
> g.region ...
> d.redraw
> 
> ?
> 
> 
> 
> Hamish
> 

____________________
C. Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
PO Box 872402
Arizona State University
Tempe, AZ  85287-2402
USA

Phone: 480-965-6262
Fax: 480-965-7671
www: <www.public.asu.edu/~cmbarton>