[OpenLayers-Dev] [Mapbuilder-devel] Who is interested in SLD editing?

[Cameron Shorter]

Lorenzo,
It would be good to discuss this in real time. My contact details are at 
http://cameron.shorter.net

I have a bunch of questions:
* What will your interface between client and server look like?
* I don't know much about the algorithms mentioned below, but I'm 
guessing they require attribute Max/min and statistical calculations 
from a collection of features?
* I wonder how a WFS interface would need to be extended to support this 
and whether it is worth standardising as a spec.
* The SLD spec has had a slow uptake and I wonder whether your needs 
might highlight deficiencies.

I'm assuming that you plan to have a browser based client (Openlayers) 
which would need an interface to a server (eg Geoserver).

Lorenzo Becchi wrote:
>
>> Lorenzo,
>> You have sparked my curiosity. Maybe you have identified a user 
>> requirement which is not covered by OGC specifications.
>>
>> I'm wondering whether your requirements could be addressed by a WFS 
>> or Web Coverage Service (WCS).
>> A WCS can be used to colour a map based on an attribute like 
>> population density.
> We didn't felt that confortable looking for a OWS solution for:
> - quantile
> - unique value
> - natural brakes
> - generally every algorithm to create classes passing from real data 
> values.
>
> The problem we see is not the possibility to access data values with 
> OWS but to parse them on the client (Web Browser) to build the brake 
> values and use them in SLD filters.
>
> we are open to any suggestions to do a better job but actually we see 
> a solution only in this server component.
>
>
> ciao
> Lorenzo and Andrea
>


-- 
Cameron Shorter
Systems Architect, http://lisasoft.com.au
Tel: +61 (0)2 8570 5050
Mob: +61 (0)419 142 254