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 Cheers Andrea ----------------------------------------------------- Ing. Andrea Aime Senior Software Engineer GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584962313 fax: +39 0584962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ----------------------------------------------------- ------------------------------------------------------------------------------ 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 _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
