[GRASS5] [bug #4144] (grass) Gis.m display fails to update to new region changes with g.region

Moritz Lennert mlennert at club.worldonline.be
Tue Mar 7 04:24:59 EST 2006


Maciek Sieczka wrote:
> On Mon,  6 Mar 2006 19:34:59 +0100 (CET)
> Request Tracker <grass-bugs at intevation.de> wrote:
> 
> 
>>this bug's URL: http://intevation.de/rt/webrt?serial_num=4144
>>-------------------------------------------------------------------------
>>
>>Subject: Gis.m display fails to update to new region changes with
>>g.region
>>
>>Platform: GNU/Linux/x86
>>grass obtained from: Trento Italy site
>>grass binary for platform: Downloaded precompiled Binaries
>>GRASS Version: Grass 6.1 cvs binary snapshot 2006-03-04
>>
>>Gis.m doesn't update the display to new region extents on subsequesnt
>>redraws.
>>
>>Ex: If I zoom into a small subset of my currently displayed raster,
>>and type g.region -p:
>>
>>projection: 1 (UTM)
>>zone:       20
>>datum:      ** unknown (default: WGS84) **
>>ellipsoid:  wgs84
>>north:      5174033.36548
>>south:      5172592.47662
>>west:       634545.579594
>>east:       635650.346057
>>nsres:      5.18305345
>>ewres:      4.8243077
>>rows:       278
>>cols:       229
>>
>>Now set region to full extent of my raster:
>>
>>g.region rast=myraster
>>
>>projection: 1 (UTM)
>>zone:       20
>>datum:      ** unknown (default: WGS84) **
>>ellipsoid:  wgs84
>>north:      5175138.55197738
>>south:      5166979.86985776
>>west:       628088.36633083
>>east:       652649.9283519
>>nsres:      5.51262305
>>ewres:      5.02589769
>>rows:       1480
>>cols:       4887
>>
>>But redrawing shows the same extent as the first instance when I was
>>zoomed in, despite g.region showing a larger extent.
> 
> 
> After g.region press "Zoom to current region" in Map Display window,
> then redraw. Is it OK then?

Maybe this should be changed to something like "zoom to g.region 
setting" to make it clear that this means the current region set 
globally in GRASS and not the current region of the monitor.

Moritz




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