[GRASS-dev] Region problems in grass 6.3 (maybe also 6.1)...

[Markus Neteler]

Hi Isaac,

a solution for this (known) problem was proposed by Martin Landa a
few days ago:

http://grass.itc.it/pipermail/grass-dev/2006-August/025040.html

Since he should have CVS write access now, I hope that
he'll submit the patch asap.

Markus

On Tue, Aug 15, 2006 at 06:07:09PM +0000, Isaac Ullah wrote:
> Hi all,
> 
>      A very interesting and frustrating problem has just presented 
> itself to me. The region settings seem to "break" after using the new 
> zoom tools from the map display. i get the following error message in 
> the Output window:
> 
> region for current mapset is invalid
> line 15: <depths:     0>
> run "g.region"
> 
>    This message displays after zooming a few times, or after attempting 
> to do anything at all with "g.region" (including just printing region 
> settings). Also, all the new zoom tools in the map display seem to do 
> nothing after this message, and I cannot display any of the maps in my 
> mapset. I have looked at the WIND file for the afflicted mapsets, and 
> they seem perfectly normal. For example, the above error message is 
> associated with the following WIND file:
> 
> 
> proj:       1
> zone:       36
> north:      3742844.70455
> south:      3309044.70455
> east:       944264.754065
> west:       560076.932184
> cols:       12806
> rows:       14460
> e-w resol:  30.0006108
> n-s resol:  30
> top:        1
> bottom:     0
> cols3:      12806
> rows3:      14460
> depths:     1
> e-w resol3: 30.0006108
> n-s resol3: 30
> t-b resol:  1
> 
> Making a new mapset allows me to run "g.region" without any problems 
> until I use the new zooming tools, and then the same problem occurs. 
> Restarting GRASS initially allows for the maps to be displayed again, 
> but after zooming a bit, or trying to run "g.region" again, the region 
> eventually "breaks" again. What I specifically do not understand is why 
> the error tells me to run "g.region" when doing so does nothing, and 
> seems to even cause the error in the first place. Does anybody have any 
> idea what the issue is here? I am using GRASS 6.3, compiled from the CVS 
> source yesterday (08/15)... Any help would be greatly appreciated.
> 
> Cheers,
> 
> Isaac
> 
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-- 
Markus Neteler  <neteler itc it>  http://mpa.itc.it/markus/
ITC-irst -  Centro per la Ricerca Scientifica e Tecnologica
MPBA - Predictive Models for Biol. & Environ. Data Analysis
Via Sommarive, 18        -       38050 Povo (Trento), Italy