[Gvsig_english] Problem with nodata value in raster style

[Antonio Falciano]

Il 17/02/2016 10:29, Silvia Franceschi ha scritto:
> Dear all,
> I have a raster covering a region of which only a small part has valid
> data and the rest is all nodata value (-9999 in the asc format).
> The visualization is a map with all black in the part where there are
> nodata values and white where there are the valid values. This is
> because the styling considers -9999 as a value and therefore the legend
> is created from -9999 to 50 (which is the maximum value of my data).
>
> My question is, is there a way to specify the nodata value in the
> styling or somewhere? I tried to specify the minimum and maximum values
> in the styling window but they work only with equidistance and in
> addition all the values below the minimum are visualized with the same
> color as the minimum...

Hi Silvia,
the NoData value can be set in the Raster properties, General tab.
If you like you can consider NoData values as transparent.

> I am now using the latest build of the 2.3 version (2423) on a windows
> 64 bits.

Great!

Cheers,
Antonio

-- 
Antonio Falciano
http://www.linkedin.com/in/antoniofalciano