Hugues: Yes, you are quite right. The ST_Intersects does exactly what I need. Good stuff here. Thanks again everyone for your patience! I probably should have tried a few more of these before posting. Cheers!Joseph Spenner If life gives you lemons, keep them-- because hey.. free lemons.
"~heart~ Sticker" fixer: http://microflush.org/stuff/stickers/heartFix.html From: Hugues François <hugues.franc...@irstea.fr> To: Joseph Spenner <joseph85...@yahoo.com>; PostGIS Users Discussion <postgis-users@lists.osgeo.org> Sent: Tuesday, November 18, 2014 8:52 AM Subject: RE: [postgis-users] Returning polygons if any of a polygon input points lie in the polygons #yiv6953499053 #yiv6953499053 -- _filtered #yiv6953499053 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv6953499053 {font-family:Helvetica;panose-1:2 11 6 4 2 2 2 2 2 4;} _filtered #yiv6953499053 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv6953499053 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} _filtered #yiv6953499053 {font-family:Garamond;panose-1:2 2 4 4 3 3 1 1 8 3;}#yiv6953499053 #yiv6953499053 p.yiv6953499053MsoNormal, #yiv6953499053 li.yiv6953499053MsoNormal, #yiv6953499053 div.yiv6953499053MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;}#yiv6953499053 a:link, #yiv6953499053 span.yiv6953499053MsoHyperlink {color:blue;text-decoration:underline;}#yiv6953499053 a:visited, #yiv6953499053 span.yiv6953499053MsoHyperlinkFollowed {color:purple;text-decoration:underline;}#yiv6953499053 p.yiv6953499053MsoAcetate, #yiv6953499053 li.yiv6953499053MsoAcetate, #yiv6953499053 div.yiv6953499053MsoAcetate {margin:0cm;margin-bottom:.0001pt;font-size:8.0pt;}#yiv6953499053 span.yiv6953499053EmailStyle17 {color:#1F497D;}#yiv6953499053 span.yiv6953499053TextedebullesCar {}#yiv6953499053 .yiv6953499053MsoChpDefault {font-size:10.0pt;} _filtered #yiv6953499053 {margin:70.85pt 70.85pt 70.85pt 70.85pt;}#yiv6953499053 div.yiv6953499053WordSection1 {}#yiv6953499053 Hi, I think ST_Intersects will meet your needs : SELECT zone,gid,state,name,ST_Asgeojson( geom ) FROM polys WHERE ST_Intersects(ST_GeomFromText('POLYGON((-109 42,-108 42, -108 43; -109 43, -109 42))', 4269), geom) Hugues. Hugues FrançoisTourisme et systèmes d’informationIrstea – DTM +33 (0)4.76.76.27.44+33 (0)6.77.66.21.31 De : postgis-users-boun...@lists.osgeo.org [mailto:postgis-users-boun...@lists.osgeo.org] De la part de Joseph Spenner Envoyé : mardi 18 novembre 2014 16:44 À : PostGIS Users Discussion Objet : Re: [postgis-users] Returning polygons if any of a polygon input points lie in the polygons Something I did notice though-- it seems that if the input polygon completely surrounds a polygon stored in my database, it is not included in the result. I read something about this here: http://postgis.net/docs/ST_Overlaps.html "Returns TRUE if the Geometries "spatially overlap". By that we mean they intersect, but one does not completely contain another." I do need the polygons which are completely contained as well. Can this be done? Thanks again for the help. I'm getting there! Regards,Joseph Spenner From: Joseph Spenner <joseph85...@yahoo.com> To: Rémi Cura <remi.c...@gmail.com>; PostGIS Users Discussion <postgis-users@lists.osgeo.org> Sent: Tuesday, November 18, 2014 8:35 AM Subject: Re: [postgis-users] Returning polygons if any of a polygon input points lie in the polygons Rémi: Yes, that worked perfectly. Thanks! My input poly will be stored in another database (maybe just another table). It would be nice to perform the query all on 1 line (get the poly and use it for the query), but I can query the first table first to get the input poly, then use that for the 2nd query without too much difficulty. Thanks again for the responses! Regards,Joseph Spenner If life gives you lemons, keep them-- because hey.. free lemons. "~heart~ Sticker" fixer: http://microflush.org/stuff/stickers/heartFix.html From: Rémi Cura <remi.c...@gmail.com> To: PostGIS Users Discussion <postgis-users@lists.osgeo.org> Cc: Joseph Spenner <joseph85...@yahoo.com> Sent: Tuesday, November 18, 2014 4:20 AM Subject: Re: [postgis-users] Returning polygons if any of a polygon input points lie in the polygons Something like this? SELECT zone,gid,state,name,ST_Asgeojson( geom ) FROM polys WHERE ST_Overlaps(ST_GeomFromText('POLYGON((-109 42,-108 42, -108 43; -109 43, -109 42))', 4269), geom)=TRUE; Cheers, Rémi-C 2014-11-18 9:00 GMT+01:00 Hugues François <hugues.franc...@irstea.fr>: Hello, Maybe I don’t understand your problem very well but I think your query for points should work with a polygon using ST_GeomFromText (http://www.postgis.org/docs/ST_GeomFromText.html) for your input polygon or a subquery if it stored into your DB. Hugues. De : postgis-users-boun...@lists.osgeo.org [mailto:postgis-users-boun...@lists.osgeo.org] De la part de Joseph Spenner Envoyé : lundi 17 novembre 2014 22:35 À : PostGIS Users Discussion Objet : [postgis-users] Returning polygons if any of a polygon input points lie in the polygons Hello, I'm trying to perform a query which will return any polygons which have any points in common with an input polygon. So, if I have Polygon A.In my database, I have several other polygons stored. I want to submit a query with Polygon A as the input, which will return all of the polygons in my database which have any points in common with Polygon A. Can this be done? I found this:http://postgis.net/docs/ST_Overlaps.html But from what I can tell, it only returns a T or F. I need to fetch the actual polygons if T. I'm currently able to query with points as input: select zone,gid,state,name,ST_Asgeojson( geom ) from polys where ST_Intersects(ST_PointFromText('POINT(-109 42)', 4269), geom); But now I have a need to use polygons as input. Any help would be great. Thanks! Regards,Joseph Spenner _______________________________________________ postgis-users mailing list postgis-users@lists.osgeo.org http://lists.osgeo.org/cgi-bin/mailman/listinfo/postgis-users
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