Ok, i will create the prototype :).
But where i can get information how to get the entire source code? Because
for example the org.geotools.styling.ChannelSelection is part of a jar
(gt-api-11), and even with the -DdownloadSources i cant edit the source
code.
What i am doing wrong to not get all the source code dependencies?
2017-08-23 10:59 GMT-03:00 Andrea Aime <[email protected]>:
> Hi Danilo,
> that sounds great!
>
> Just a word of warning, normally you should do the proposal first (maybe
> do a tiny prototype
> to figure out where you want to make the changes, it's up to you), and
> then the coding.
> If you do the opposite, it's fine too, but don't complain if/when you get
> change request on your
> proposal that will force you to rewrite part of the code ;-)
>
> Cheers
> Andrea
>
>
> On Wed, Aug 23, 2017 at 3:51 PM, Danilo da Silveira Figueira <
> [email protected]> wrote:
>
>> Andrea,
>>
>> Thanks for your reply, so i will propose this API change and code this by
>> myself. After it i do the proposal for the developer team.
>>
>>
>>
>> 2017-08-23 5:16 GMT-03:00 Andrea Aime <[email protected]>:
>>
>>> Hi Danilo,
>>> as far as I know there is no support for alpha channel in there.
>>>
>>> You'll have to make a code extension in GeoTools, which might not be
>>> simple since the current API,
>>> derived from the SLD spec, goes like this:
>>>
>>> /**
>>> * Set the RGB channels to be used
>>> *
>>> * @param red the red channel
>>> * @param green the green channel
>>> * @param blue the blue channel
>>> */
>>> void setRGBChannels(SelectedChannelType red, SelectedChannelType
>>> green, SelectedChannelType blue);
>>>
>>> /**
>>> * Set the RGB channels to be used
>>> *
>>> * @param channels array of channels in RGB order
>>> */
>>> void setRGBChannels(SelectedChannelType[] channels);
>>>
>>> and all the code dealing with style parsing, encoding and rendering has
>>> enumerations or explicit mentions
>>> of "red", "green" and "blue".
>>> So public API breaking seems to be necessary, which implies that you'll
>>> have to make a proposal and restrict
>>> the code changes to the developer series:
>>> http://docs.geotools.org/latest/developer/procedures/proposal.html
>>>
>>> Hope this helps (even if it's probably not what you wanted to hear :-p )
>>>
>>> Cheers
>>> Andrea
>>>
>>>
>>> On Tue, Aug 22, 2017 at 8:41 PM, Danilo da Silveira Figueira <
>>> [email protected]> wrote:
>>>
>>>> Hi all,
>>>>
>>>> I see that the property ChannelSelection has only RGB channels, i need
>>>> to use all the RGBA channels.
>>>>
>>>> In fact in my image the AlphaChannel is an important information too.
>>>> And each cell has one different value, so because this i cant use things
>>>> like RAMP/VALUE colormap.
>>>>
>>>> It is possible to use something like <AlphaCHannel> in sld? If don't,
>>>> can i do this by implementing a geoserver extension?
>>>>
>>>> i will have to
>>>> How can i do this?
>>>>
>>>> ------------------------------------------------------------
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>>>>
>>>
>>>
>>> --
>>>
>>> Regards,
>>>
>>> Andrea Aime
>>>
>>> ==
>>> GeoServer Professional Services from the experts! Visit
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>>
>
>
> --
>
> Regards,
>
> Andrea Aime
>
> ==
> GeoServer Professional Services from the experts! Visit
> http://goo.gl/it488V for more information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via di Montramito 3/A
> 55054 Massarosa (LU)
> phone: +39 0584 962313 <+39%200584%20962313>
> fax: +39 0584 1660272 <+39%200584%20166%200272>
> mob: +39 339 8844549 <+39%20339%20884%204549>
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
> AVVERTENZE AI SENSI DEL D.Lgs. 196/2003
>
> Le informazioni contenute in questo messaggio di posta elettronica e/o
> nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
> loro utilizzo è consentito esclusivamente al destinatario del messaggio,
> per le finalità indicate nel messaggio stesso. Qualora riceviate questo
> messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
> darcene notizia via e-mail e di procedere alla distruzione del messaggio
> stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
> divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
> utilizzarlo per finalità diverse, costituisce comportamento contrario ai
> principi dettati dal D.Lgs. 196/2003.
>
> The information in this message and/or attachments, is intended solely for
> the attention and use of the named addressee(s) and may be confidential or
> proprietary in nature or covered by the provisions of privacy act
> (Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
> Code).Any use not in accord with its purpose, any disclosure, reproduction,
> copying, distribution, or either dissemination, either whole or partial, is
> strictly forbidden except previous formal approval of the named
> addressee(s). If you are not the intended recipient, please contact
> immediately the sender by telephone, fax or e-mail and delete the
> information in this message that has been received in error. The sender
> does not give any warranty or accept liability as the content, accuracy or
> completeness of sent messages and accepts no responsibility for changes
> made after they were sent or for other risks which arise as a result of
> e-mail transmission, viruses, etc.
>
>
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