[Qgis-developer] Raster colours

[Tim Sutton]

Hi

On Thu, Jul 26, 2012 at 9:29 PM, Etienne Tourigny
<etourigny.dev at gmail.com> wrote:
> On Thu, Jul 26, 2012 at 4:25 PM, Giovanni Manghi
> <giovanni.manghi at faunalia.pt> wrote:
>> Hi Etienne,
>>
>>
>>> In this case, I think we should add several ramps that, although useful
>>> for both, are really necessary for raster (e.g. DTM). See 1-band plugin
>>> for a very nice set of ramps, and classification methods.
>>> From the user point of view, having the same colours available would be
>>> a serious advantage
>
> I tried the 1-band plugin and was impressed by its features, but not
> by its stability or interface (sorry...)
>
>
> I would start by adapting existing c++ methods for rasters, with room
> for improvements by others.
>
> Is there anything in the vector color ramps that should NOT be
> available for raster color ramps?
> Starting from that base would give at least a consistent UI and
> framework ,adn at least colorbrewer that give some flexibility.
>
> Anyone object if I rename the core and gui classes? This would break
> some api stuff, but it won't be the first.
>

Reusing interface components is good if you can do it. No it is fine
to break api - just keep track of changes in the headers and on the
api breakage wiki page.

Regards

Tim

> Etienne
>
>>
>>
>> I agree, most color ramps available for vectors would not be very useful
>> to theme raster maps. It is really needed a set of specific color ramps,
>> as in the already cited 1-band raster plugin, that includes also the
>> ramps available in GRASS and many (but maybe not all) the ramps
>> available here
>>
>> http://soliton.vm.bytemark.co.uk/pub/cpt-city/
>>
>> Adding this functionality would fix a long standing issue
>>
>> http://hub.qgis.org/issues/782
>>
>> a very painful issue indeed for who works with raster data and need to
>> produce thematic maps.
>>
>> Thanks in advance
>>
>> -- Giovanni --
>>
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