Jody Garnett wrote:
>> 75% of the case we have a single band raster when we want to use the 
>> categorize function. So rasterData is fine. It just looks like they 
>> have forgotten the 25% left. Or perhaps they assume we choose a single 
>> band in the selectedChannel. that's possible too. If that's the case 
>> rasterData is not a mistake and it would solve problem 2 and 3. But 
>> they say nothing about this particular case.
>>     
I was thinking they do have some ColorChannel data structure - does that 
help get us a single band?
> Simone may also be able to provide some light on these kinds of issues?
>   

>>> Consider the example here:
>>> - http://schemas.opengis.net/se/1.1.0/example-rastersymbolizer1.xml
>>>
>>> It has look up vale = "RasterData"
>>> and value#00ff00 that is probably the same thing as 
>>> double[]{00,255,00} right? Have a look at the converters api; and 
>>> send email ... chances are that you need to make the lookup here 
>>> return a Color in both cases...
>>>       
>> I know it, nearly the 20th time I check it if I had made a mistake.
>>     
We could also go beyond the specification and have RasterData.1 and 
RasterData.2 for the different channels; although the channels may have 
a name - (ie RasterData/R) which would be very readable when making use 
of categories :-)

I like this idea but I am worried Martin will kick me ... it is not wise 
to be creative with specifications.
Jody


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