[GRASS-dev] d.m/d.gis mysteries..

Moritz Lennert mlennert at club.worldonline.be
Sat Oct 28 09:32:10 EDT 2006

Maciej Sieczka wrote:
> Hamish wrote:
>>> Michael Barton wrote:
>>>> I'd be in favor of dropping d.m from 6.3.
>> Maciej Sieczka wrote:
>>> And I wouldn't. There are continous problems with region handling in
>>> gis.m that make me use d.m still for production. If d.m is removed
>>> from 6.3 I would use 6.2 often, which would make me less up to date
>>> with 6.3 developement and less capable of reporting bugs/fixing minor
>>> problems.
>> When 6.2.0 is released, with gis.m as default, we are tacitly declaring
>> it "ready for production". If you feel there are still significant
>> region handling problems with 6.2.0rc3, please supply details.
> Take the 'slope' raster map from spearfish (for example). Zoom in until
> you see ~ 8 or 6 cells. You will see:
> 1. Cell's shape is distorted (not square).
> 2. The number of rows and cols declared in the status bar in the bottom
> of the Map Display window doens't reflect what is actually displayed.
> 3. Now set current WIND to match the Map Display. Display the same
> raster in X monitor - what you see in X monitor and gis.m's Map Display
> window is different. Moreover, g.region -p reports a different number
> of rows and cols than the Map Display's status bar, too.

A nice exercise to do is to zoom to a few pixels, save the current 
display to the WIND file and then zoom to current region. The latter 
generally has a larger extent than what was displayed...


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