I don't think I have code examples of these yet myself (so if you create some
please send them my way).
One thing you can do for examples is download the SE 1.1 specification; and the
javadocs are also pretty good.
-
http://docs.geotools.org/latest/javadocs/org/geotools/filter/function/RecodeFunction.html
-
http://docs.geotools.org/latest/javadocs/org/geotools/filter/function/InterpolateFunction.html
-
http://docs.geotools.org/latest/javadocs/org/geotools/filter/function/CategorizeFunction.html
Here is a CQL example from an old email:
stroke-width:
- categorize( attribute, 1, 5000, 2, 15000, 3, 40000, 4,750000, 5 );
fill-color:
- interpolation( attribute, 0.0, '#005500', 3300.0, 'AA1100', 5000.0, #FFFFFF,
"linear", "color", )
The only thing I am not sure about is how the env function works to access
scale? Need to look at some of aaime's blog posts for that :(
I would expect something like the following:
size:
- categorize( env("scaleDenominator"), 5, 5000, 8, 10000, 10 )
--
Jody Garnett
On Wednesday, 27 April 2011 at 7:15 PM, andrea antonello wrote:
> Hi Jody, thanks for the reply.
>
> > You should also be able to define the size as an expression; and choose one
> > of the Categorize function based on scale (think scale is available as an
> > env function?)
> > The three functions from se 1.1 should cut down on 90% of the use of Rules:
> > - Categorize
> > - Interpolate
> > - Recode
>
> I guess I understand what you mean, but I sure do not know how to
> achive this. I can't find any reference on the geotools doc. Guess
> this is because it is one of the new parts?
> I would like to add that also to the uDig styler, so if you have
> examples or reference docs, let me know.
>
> Thanks,
> Andrea
>
>
> >
> > --
> > Jody Garnett
> >
> > On Wednesday, 27 April 2011 at 5:54 PM, andrea antonello wrote:
> >
> > Hi all,
> > I am trying to understand if it is possible through sld in geotools to
> > define a label size at fix scale, i.e. say: size 10 at 1:10000.
> >
> > From the sld tests and implementations I have done so far for uDig,
> >
> > the only possibility I came across is to create different rules with
> > different sizes to mimic that behaviour (geoserver cookbook).
> >
> > Is there right now any way to achieve this?
> >
> > Thanks,
> > Andrea
> >
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