[GRASS-user] Cross-post: Grass - Qgis raster color problem

GRASS GRASS user
,
1

Hi all, I'm trying to visualize in Qgis a raster from a grass project using
the grass plugin. I can see the raster but the color palette is wrong. The
raster is a etopo2
(http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO2/ETOPO2-2001/), so here I
have negative and positive values. In grass I changed the colors and the
raster looks very nice but when I try to visualize it in qgis the colors are
completely different. Is like Qgis would has cut the negative colors . Any
advices?
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2

nikguitar wrote on 07/16/2007 02:20 PM:

Hi all, I'm trying to visualize in Qgis a raster from a grass project using
the grass plugin. I can see the raster but the color palette is wrong. The
raster is a etopo2
(http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO2/ETOPO2-2001/), so here I
have negative and positive values. In grass I changed the colors and the
raster looks very nice but when I try to visualize it in qgis the colors are
completely different. Is like Qgis would has cut the negative colors . Any
advices?
  

Maybe related to this bug?

https://svn.qgis.org/trac/ticket/408

Markus

------------------
ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler
ITC -> since 1 March 2007 Fondazione Bruno Kessler
------------------

3

I found the same problem with GRASS rasters only in QGIS.

in the raster symbology, look at how the word “Red” is blue and the word “Blue” is red.

if you want it to look right on the screen, flip the bands accordingly in the symbology. if you want it to print right, leave it as it is and print.

Mark

On 7/16/07, Markus Neteler <neteler@itc.it> wrote:

nikguitar wrote on 07/16/2007 02:20 PM:

Hi all, I’m trying to visualize in Qgis a raster from a grass project using
the grass plugin. I can see the raster but the color palette is wrong. The
raster is a etopo2
(http://www.ngdc.noaa.gov/mgg/global/relief/ETOPO2/ETOPO2-2001/), so here I
have negative and positive values. In grass I changed the colors and the
raster looks very nice but when I try to visualize it in qgis the colors are
completely different. Is like Qgis would has cut the negative colors . Any
advices?

Maybe related to this bug?

https://svn.qgis.org/trac/ticket/408

Markus

ITC → dall’1 marzo 2007 Fondazione Bruno Kessler
ITC → since 1 March 2007 Fondazione Bruno Kessler

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