For a quick fix you can change that to use perimeter(the_geom)>1000 ) = true and the existing code should work.
Ian On Wed, 4 Nov 2020 at 16:16, Erwan Bocher <erwan.boc...@univ-ubs.fr> wrote: > Hi, > Le 04/11/2020 à 16:51, Andrea Aime a écrit : > > Hi, > yes that looks promising. I don't see the registration of the function in > META-INF, but I guess that's handled > in a different commit > > here > https://github.com/ebocher/geotools/blob/addFunctions/modules/library/main/src/main/resources/META-INF/services/org.opengis.filter.expression.Function#L204 > > Current and , or operators work with left, right operands. I' m facing > with a new issue if the user wants to do > > (type='parcels' and area(the_geom) >=20000 or perimeter(the_geom)>1000 ) > or landuse='grass' > > Any idea ? > > What about using a list of parameters as input ? > > Bests > > Erwan > > > Cheers > Andrea > > > On Wed, Nov 4, 2020 at 4:19 PM Erwan Bocher <erwan.boc...@univ-ubs.fr> > wrote: > >> Hi Andrea, >> >> Thanks. >> >> Here first implementations : >> https://github.com/ebocher/geotools/commit/8f5dec5d82967fb91d370bf4408840cbdedf9eca >> >> I hope I'm on the right road ;-) >> >> Erwan >> Le 04/11/2020 à 11:49, Andrea Aime a écrit : >> >> Hi Erwan, >> yes, if you want to use expressions, you'll have to replicate every >> missing bit as a function. >> As a word of caution, functions are almost always evaluated in memory, >> unless the particular >> data store provides direct support for them (the PostGIS datastore has >> examples for a few string manipulation functions). >> >> Cheers >> Andrea >> >> On Wed, Nov 4, 2020 at 10:45 AM Erwan Bocher <erwan.boc...@univ-ubs.fr> >> wrote: >> >>> Hi Jim, >>> >>> Logical op works well with Filter but I want to use it to build an >>> expression. >>> >>> @andrea, >>> >>> Do we need to add a And function that extends FunctionExpressionImpl ? >>> >>> If yes it 'd be the same approach for Or op. >>> >>> Best regards >>> >>> Erwan >>> >>> >>> Le 02/11/2020 à 19:21, Jim Hughes a écrit : >>> >>> Hi Erwan, >>> >>> I don't think there's an "and" function. It can be used between two >>> conditions[1]. >>> >>> Cheers, >>> >>> Jim >>> >>> 1. >>> https://docs.geoserver.org/stable/en/user/filter/ecql_reference.html#condition >>> (I end up referring to this page frequently to figure out syntax.) >>> >>> 2. I also like this page: >>> https://docs.geoserver.org/stable/en/user/tutorials/cql/cql_tutorial.html >>> On 11/2/2020 5:45 AM, Erwan Bocher wrote: >>> >>> Based on >>> https://docs.geotools.org/latest/userguide/library/opengis/filter.html >>> , I try to use logical op like this >>> >>> "if_then_else(and(greaterThan(area(THE_GEOM), 10),equalTo(type, 12)),5, 1)" >>> >>> return me >>> >>> Exception in thread "main" org.geotools.filter.text.cql2.CQLException: >>> Encountered "and" at line 1, column 14. >>> >>> Am I doing something wrong? >>> >>> Best regards >>> >>> Erwan >>> >>> Le 02/11/2020 à 10:30, Erwan Bocher a écrit : >>> >>> >>> Le 02/11/2020 à 10:23, Andrea Aime a écrit : >>> >>> No, it does not, but you can make it so by modifying FilterToSQL, and >>> then go around and change >>> the database filter capabilities (otherwise the filter splitter will >>> take it out). Well, unless you can ensure >>> every single database supports CASE WHEN with the same syntax. Which >>> seems like it may be true >>> for most, but every time I bet on it, I find a database that does not >>> follow the SQL standard...): >>> >>> >>> Ok >>> >>> I will test this change with the H2GIS-Geotools datastore ( >>> https://github.com/orbisgis/h2gis-geotools) and share my result when it >>> rocks >>> >>> Best regards >>> >>> >>> -- >>> Ingénieur de Recherche CNRS - HDR, >>> Laboratoire Lab-STICC – UMR 6285 >>> Equipe DECIDE >>> Institut Universitaire de Technologie de Vannes >>> 8, Rue Montaigne - BP 561 56017 Vannes Cedex >>> T: +33 2 97 62 64 92 >>> W: https://cv.archives-ouvertes.fr/erwan-bocher >>> W: http://www.labsticc.fr >>> >>> >>> >>> _______________________________________________ >>> GeoTools-GT2-Users mailing >>> listGeoTools-GT2-Users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>> >>> >>> >>> _______________________________________________ >>> GeoTools-GT2-Users mailing >>> listGeoTools-GT2-Users@lists.sourceforge.nethttps://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>> >>> -- >>> Ingénieur de Recherche CNRS - HDR, >>> Laboratoire Lab-STICC – UMR 6285 >>> Equipe DECIDE >>> Institut Universitaire de Technologie de Vannes >>> 8, Rue Montaigne - BP 561 56017 Vannes Cedex >>> T: +33 2 97 62 64 92 >>> W: https://cv.archives-ouvertes.fr/erwan-bocher >>> W: http://www.labsticc.fr >>> >>> _______________________________________________ >>> GeoTools-GT2-Users mailing list >>> GeoTools-GT2-Users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users >>> >> >> >> -- >> >> Regards, Andrea Aime >> >> == GeoServer Professional Services from the experts! Visit >> http://goo.gl/it488V for more information. == Ing. Andrea Aime @geowolf >> Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa >> (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549 >> http://www.geo-solutions.it http://twitter.com/geosolutions_it >> ------------------------------------------------------- *Con riferimento >> alla normativa sul trattamento dei dati personali (Reg. UE 2016/679 - >> Regolamento generale sulla protezione dei dati “GDPR”), si precisa che ogni >> circostanza inerente alla presente email (il suo contenuto, gli eventuali >> allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i >> destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per >> errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le >> sarei comunque grato se potesse darmene notizia. This email is intended >> only for the person or entity to which it is addressed and may contain >> information that is privileged, confidential or otherwise protected from >> disclosure. We remind that - as provided by European Regulation 2016/679 >> “GDPR” - copying, dissemination or use of this e-mail or the information >> herein by anyone other than the intended recipient is prohibited. If you >> have received this email by mistake, please notify us immediately by >> telephone or e-mail.* >> >> -- >> Ingénieur de Recherche CNRS - HDR, >> Laboratoire Lab-STICC – UMR 6285 >> Equipe DECIDE >> Institut Universitaire de Technologie de Vannes >> 8, Rue Montaigne - BP 561 56017 Vannes Cedex >> T: +33 2 97 62 64 92 >> W: https://cv.archives-ouvertes.fr/erwan-bocher >> W: http://www.labsticc.fr >> >> > > -- > > Regards, Andrea Aime > > == GeoServer Professional Services from the experts! Visit > http://goo.gl/it488V for more information. == Ing. Andrea Aime @geowolf > Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054 Massarosa > (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339 8844549 > http://www.geo-solutions.it http://twitter.com/geosolutions_it > ------------------------------------------------------- *Con riferimento > alla normativa sul trattamento dei dati personali (Reg. UE 2016/679 - > Regolamento generale sulla protezione dei dati “GDPR”), si precisa che ogni > circostanza inerente alla presente email (il suo contenuto, gli eventuali > allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i > destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per > errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le > sarei comunque grato se potesse darmene notizia. This email is intended > only for the person or entity to which it is addressed and may contain > information that is privileged, confidential or otherwise protected from > disclosure. We remind that - as provided by European Regulation 2016/679 > “GDPR” - copying, dissemination or use of this e-mail or the information > herein by anyone other than the intended recipient is prohibited. If you > have received this email by mistake, please notify us immediately by > telephone or e-mail.* > > -- > Ingénieur de Recherche CNRS - HDR, > Laboratoire Lab-STICC – UMR 6285 > Equipe DECIDE > Institut Universitaire de Technologie de Vannes > 8, Rue Montaigne - BP 561 56017 Vannes Cedex > T: +33 2 97 62 64 92 > W: https://cv.archives-ouvertes.fr/erwan-bocher > W: http://www.labsticc.fr > > _______________________________________________ > GeoTools-GT2-Users mailing list > GeoTools-GT2-Users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users > -- Ian Turton
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