[GRASS-user] Low map display resolution in default 6.4 ?

[felix.schalck]

Markus Neteler wrote:
> Hi Felix,
>
> On Fri, Aug 14, 2009 at 11:43 PM, Felix Schalck<felix.schalck at gmail.com> wrote:
> ...
>   
>> 1. DEM resolution:
>> $gdalinfo srtm_38_03.tif
>>     
> ...
>   
>> Pixel Size = (0.000833333333333,-0.000833333333333)
>>     
> ...
>   
>> 2. Region settings:
>> $g.region -p
>>     
> ...
>   
>> nsres:      0:00:03
>> ewres:      0:00:03
>>     
>
> which corresponds to:
>
> g.region -g
> ...
> nsres=0.000833333333333331
> ewres=0.000833333333333333
>
> That should be fine, but...
>
>   
>> If I interpret those numbers correctly, the region is set to the
>> theoretical max. resolution. Again, since I basically did not touch
>> the configs during the upgrade procedure (GRASS 6.23>6.4RC5) I thought
>> to myself it might just be a configuration change of the default
>> driver used by d.rast: in the old version, it took forever to load,
>> but the level of details SEEMED much higher, now it loads quasi
>> instantly, but looks 'soappy'. What changed ?
>>     
>
> (nothing should have changed)
>
> ... did you use d.erase to tell the GRASS monitor about the high
> resolution? The technology behind all is still the same in 6.4.
> Markus
>   

d.erase ? Not at all...

I'm really sorry I have no screenshot to show you the difference - since 
now, when starting 6.23, I'm getting the same high 
speed-low-res-display.  Nonetheless, the loading time alone is a good 
change-marker, proving that, at least on my machine, something is 
different now. I'm going to check out the default Ubuntu .deb 
configuration of GRASS 6.23, and look if something is missing in my own 
compilation of 6.4.

In the end, perhaps something was broken in the old version (it took 
really forever to load even one cgiar srtm tile alone) which has been 
fixed now !

Thank you very much for your patience,

Felix