On Thu, Apr 23, 2015 at 10:29 PM, Jim Hughes <[email protected]> wrote:
> Hi Andrea,
>
> First, the CSS extension is awesome; thank you for your hard work on it.
> I have a few quick questions...
>
> 1. I am trying to style GDELT data by EventCode. The first two
> characters of the EventCode string would be sufficient to name the file I
> want. I was able to make a separate rule for each code, but it'd be more
> convenient to do something like
>
> mark: url([strConcat(strSubstring(EventCode, 0, 2), '.svg')]);
>
> If I'm reading this
> https://github.com/geotools/geotools/blob/master/modules/unsupported/css/src/main/java/org/geotools/styling/css/CssParser.java#L321
> right, it looks like Functions may not work. The docs hint that
> Expressions might be ok:
> http://docs.geoserver.org/stable/en/user/extensions/css/properties.html.
>
> Did I goof the syntax? If not, I'd be happy to help cook up a quick PR if
> expresssions/functions in url should be allowed.
>
You should check the generated SLD, that's the important one.
Also, which version of GeoServer you're using? 2.7 onwards is very much
recommended for CSS, I cannot help with 2.6 and older.
>
> 2. How does the CSS extension interact with GeoServer's SLD extensions?
>
It's a translator to SLD, GeoServer and the rendering subsytem really only
handle the latter.
If you are about to ask about working off the CSS directly, It's been
discussed already, having the renderer work directly off the CSS would
require major API changes, and a heavy refactor
or the renderer itself (we'd end up with two renderers to maintain).
>
> 3. In the CSS Styles GeoServer UI, I think it'd be awesome to keep the
> same map extent as one switches between the tabs. If you like the idea, I
> might be able to play with it over the next few weeks.
>
Sure
Cheers
Andrea
--
==
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==
Ing. Andrea Aime
@geowolf
Technical Lead
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