Re: [Qgis-developer] Spatial operators in field calc
Hi Paolo, You can find a description of it here : http://www.3liz.com/blog/rldhont/index.php?post/2012/11/06/Spatial-operators-in-QGIS-expression You can do this type of expression : intersects( $geometry, geomFromWKT( 'LINESTRING(765145.88 6274561.22, 776031.67 6284189.52)' ) ) I made it for WFS QGIS-Server Regards, René-Luc D'Hont 3Liz Le 16/10/2013 19:18, Andrea Peri a écrit : perhaps to have some conditional input value ? 2013/10/16 Paolo Cavallini cavall...@faunalia.it mailto:cavall...@faunalia.it -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all. In the Field Calculator there are, among the expressions, a series of spatial operators (touches, intersects, etc.), but I cannot figure out how to use them. They make sense as operators across layers, but I do not see how to use them within the same layer. Any hint? Thanks. - -- Paolo Cavallini - Faunalia www.faunalia.eu http://www.faunalia.eu Full contact details at www.faunalia.eu/pc http://www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlJexz8ACgkQ/NedwLUzIr5foQCffSm0vvgN3PM4gSMBGQZZJiKP qyoAoI/npwhCsqeVQzxQ4e0QIg1c9IFk =vTvS -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org mailto:Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer -- - Andrea Peri . . . . . . . . . qwerty àèìòù - ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
[Qgis-developer] Spatial operators in field calc
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all. In the Field Calculator there are, among the expressions, a series of spatial operators (touches, intersects, etc.), but I cannot figure out how to use them. They make sense as operators across layers, but I do not see how to use them within the same layer. Any hint? Thanks. - -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlJexz8ACgkQ/NedwLUzIr5foQCffSm0vvgN3PM4gSMBGQZZJiKP qyoAoI/npwhCsqeVQzxQ4e0QIg1c9IFk =vTvS -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
Re: [Qgis-developer] Spatial operators in field calc
perhaps to have some conditional input value ? 2013/10/16 Paolo Cavallini cavall...@faunalia.it -BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi all. In the Field Calculator there are, among the expressions, a series of spatial operators (touches, intersects, etc.), but I cannot figure out how to use them. They make sense as operators across layers, but I do not see how to use them within the same layer. Any hint? Thanks. - -- Paolo Cavallini - Faunalia www.faunalia.eu Full contact details at www.faunalia.eu/pc Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.15 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlJexz8ACgkQ/NedwLUzIr5foQCffSm0vvgN3PM4gSMBGQZZJiKP qyoAoI/npwhCsqeVQzxQ4e0QIg1c9IFk =vTvS -END PGP SIGNATURE- ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer -- - Andrea Peri . . . . . . . . . qwerty àèìòù - ___ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer
