[Qgis-developer] No data value in raster transparency list

[Marco Hugentobler]

Hi Radim

Nodata should be rendered transparent in most cases. But it could also 
be possible you want to render it differently. E.g. the interpolation 
plugin writes nodata value in case it encounters numerical problems. 
Then it is useful to have the nodata values coloured to see where 
problems happened. Maybe there are other use cases as well.

Regards,
Marco

Am 22.08.2012 17:49, schrieb Radim Blazek:
> Hi,
> does anybody know why raster no data value is automatically added to
> transparency list in properties dialog? It makes no sense IMO. No data
> values are always rendered as transparent, no need to define them also
> in transparent list.
>
> Radim
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-- 
Dr. Marco Hugentobler
Sourcepole -  Linux & Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee