[Qgis-user] Re: GRASS raster reading to QGIS 1.0.0 Kore

Patrick Giraudoux patrick.giraudoux at univ-fcomte.fr
Sun Jan 4 08:12:47 PST 2009


Seems that I can narrow the question now. Actually, QGIS Kore reads 
GRASS maps well except when the maps  have been created from raster ramp 
color have been optimized with i.landsat.rgb. For example in GRASS:

r.composite r=etm7 g=etm5 b=etm2 out=south752brut

makes a map 'south752brut' which is well read within QGIS

Now if I do:
i.landsat.rgb r=etm7 g=etm5 b=etm2
r.composite r=etm7 g=etm5 b=etm2 out=south752opt

it makes a map 'south752opt' which is extremly long to read (several 
minutes), and when read makes change (displacement, zoom, etc...) 
extremely long to be displayed at a speed that prevent any work

However, 'south752opt' and 'south752brut' are quick/normally displayed 
both at the same speed when on work within GRASS (e.g. d.rast south752opt)

Any hint ?

Patrick



Patrick Giraudoux a écrit :
> Dear all,
>
> I am working on Ubuntu Hardy. I have just updated from QGIS Metis to 
> Kore 1.0.0, and to my surprise, GRASS raster reading has become 
> extremely slow, whatever the context (QGIS launched withing GRASS 6.3 
> or from outside). Even small rasters take minutes before being 
> displayed (against fraction of second on Metis).
>
> Otherwise, raster import (eg tif) is working OK when GRASS is not 
> concerned...
>
> Any idea about what is happening ?
>
> Patrick
>
>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: patrick_giraudoux.vcf
Type: text/x-vcard
Size: 394 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20090104/ee32d32e/attachment.vcf>


More information about the Qgis-user mailing list