[Qgis-developer] Invert color ramp not working?

[Etienne Tourigny]

It would be better for the invert ramps to be inside the "Generate new
color map" box, and invert the order of the color ramp, instead of
inverting the rgb colours.

Like the 1-band raster colour table plugin did (it does not work with master).

Unless someone disagrees I'll look into implementing that.

Etienne

On Wed, Oct 24, 2012 at 3:52 PM, Radim Blazek <radim.blazek at gmail.com> wrote:
> On Fri, Oct 19, 2012 at 9:52 PM, Paolo Cavallini <cavallini at faunalia.it> wrote:
>> Hi all.
>> In a recent master, raster properties, if I check the flag "invert color
>> ramp", I do not get the expected result, but the old ugly red-blue ramp:
>
> Invert color was missing in pseudocolor renderer, fixed. The question
> is what is it expected to do. I have used
>       red = 255 - red;
>       green = 255 - green;
>       blue = 255 - blue;
> which is used for multiband color (both master and 1.8) but in 1.8
> pseudocolor red and blue were switched instead.
>
> You are probably expecting the classification to be done in reverse order?
>
> I think that invert color has little/no sense for pseudocolor and
> multiband color as it is implemented in master or/and was in 1.8. For
> pseudo color it should be moved to "Generate new color map" options,
> for multiband color just removed.
>
> In any case, legend is not correct if invert color is used.
>
> Radim
>
>> anyone confirms?
>> Thanks.
>>
>> --
>> Paolo Cavallini - Faunalia
>> www.faunalia.eu
>> Full contact details at www.faunalia.eu/pc
>> Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario
>>
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