Yup, they can be used in sld as well. Pretty much anywhere else a filter
function is used as the python plugin integrates directly into the spi which
si the way geotools and geoserver discover filter function implementations.
Let me know how it goes trying it out.
-Justin
On Fri, Nov 26, 2010 at 1:28 AM, Jeremy HANOUN
<[email protected]>wrote:
> Hey Justin,
>
>
>
> Thanks for the reply. Do functions work for filter only or they can be used
> to transform geometries too like in LineSymbolizer>Geometry ?
>
>
>
> Btw, it’s definitively something to look for, I’ll give a try when I’ll
> have time, may be next week.
>
>
>
> Cheers,
>
>
>
> --
>
> Jérémy Hanoun
>
>
>
> *De :* Justin Deoliveira [mailto:[email protected]]
> *Envoyé :* Thursday, November 25, 2010 4:34 PM
> *À :* Jeremy HANOUN
> *Cc :* Andrea Aime; [email protected]
> *Objet :* *****SPAM***** Re: [Geoserver-users] How to add a function
>
>
>
> Chiming in late... another way to add a simple filter function is the
> python community module.
>
>
>
> http://docs.geoserver.org/latest/en/user/community/python/hooks.html#filter
>
>
>
> Only available on trunk, and probably a bit unstable at this point but
> something to look for in the future. Or now for the brave :)
>
>
>
> -Justin
>
> On Tue, Nov 23, 2010 at 6:32 AM, Jeremy HANOUN <[email protected]>
> wrote:
>
> -----Message d'origine-----
> De : [email protected] [mailto:[email protected]] De la part de
> Andrea Aime
>
> Envoyé : Tuesday, November 23, 2010 2:23 PM
>
> À : Jeremy HANOUN
> Cc : [email protected]
> Objet : Re: [Geoserver-users] How to add a function
>
> On Tue, Nov 23, 2010 at 2:08 PM, Jeremy HANOUN
> <[email protected]> wrote:
> > -----Message d'origine-----
> > De : [email protected] [mailto:[email protected]] De la part de
> Andrea Aime
> > Envoyé : Tuesday, November 23, 2010 10:57 AM
> > À : Jeremy HANOUN
> > Cc : [email protected]
> > Objet : Re: [Geoserver-users] How to add a function
> >
> > On Tue, Nov 23, 2010 at 8:56 AM, Jeremy HANOUN
> > <[email protected]> wrote:
> >> Guys,
> >>
> >>
> >>
> >> I may need your help on the following point.
> >>
> >>
> >>
> >> I need to add a function to apply on Geometry and wanted to know if this
> is
> >> doable as a plugin.
> >
> > It is
> >
> >> If so, I'll be very pleased to have some information on how to do that.
> >
> > We don't have a guide but adding a function is easy enough that you can
> just
> > see how it's done and replicate.
> >
> > Look at the GeoTools main module:
> > http://svn.osgeo.org/geotools/trunk/modules/library/main/src/
> > this is where most of the function code is:
> >
> http://svn.osgeo.org/geotools/trunk/modules/library/main/src/main/java/org/geotools/filter/function/
> > this is a simple date formatting function:
> >
> http://svn.osgeo.org/geotools/trunk/modules/library/main/src/main/java/org/geotools/filter/function/FilterFunction_dateFormat.java
> >
> > To have them plug into GeoTools/GeoServer you also need to add a file
> > in META-INF declaring the existance of the function,
> > like this one:
> >
> http://svn.osgeo.org/geotools/trunk/modules/library/main/src/main/resources/META-INF/services/org.opengis.filter.expression.Function
> >
> > Hi Andrea,
> >
> > Thanks for the answer.
> >
> > I think that i've missed something...
> > I made a new project with the code for a class named
> FilterFunction_padding that extends FunctionExpressionImpl. The aim is to
> transform some geometries a little.
> > My tree looks like :
> > /src
> > /perso
> > /plugin
> > /filter
> > /function
> > FilterFunction_padding.java
> > /META-INF
> > org.opengis.filter.expression.Function
>
> Should have been /META-INF/services/org.opengis.filter.expression.Function
>
> Look at the location of the geotools file:
>
>
> http://svn.osgeo.org/geotools/trunk/modules/library/main/src/main/resources/META-INF/services/org.opengis.filter.expression.Function
>
> Thanks again Andrea,
>
> It worked, I sometime have my head in the clouds :)
>
> I'll tell you more soon about this function (when I'll have remove the
> bugs), I think this one could be helpful sometime and then I'll ask more
> questions on how to contribute to those projects (geotools and geoserver).
>
> Btw I finished the "parametric" functionality for the Env_Function.
>
> Cheers,
>
> --
> Jeremy Hanoun
>
>
>
>
>
> ------------------------------------------------------------------------------
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>
>
>
>
> --
> Justin Deoliveira
>
> OpenGeo - http://opengeo.org
>
> Enterprise support for open source geospatial.
>
>
>
--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
------------------------------------------------------------------------------
Increase Visibility of Your 3D Game App & Earn a Chance To Win $500!
Tap into the largest installed PC base & get more eyes on your game by
optimizing for Intel(R) Graphics Technology. Get started today with the
Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs.
http://p.sf.net/sfu/intelisp-dev2dev
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