[Qgis-user] null values and color table from grass rasters

[Patrick Giraudoux]

Hi,

I am working with QGIS 1.8.0 lisboa, and have imported a raster into 
GRASS 6.4.2 via the QGIS interface (it was a  TIF file originally).

To my surprise null values are not displayed "transparent" in QGIS but 
at the equivalent of zero in the coloramp.  However, I have checked that 
the values of the cells are really "null" when pointed on with the 
appropriate tool.

When displayed within GRASS (tcltk interface) everything is OK and null 
is transparent.

Any idea about what happens?

Patrick