Hello. Thank you very much for your help. For now, I have acquired the geometries by performing another WFS request, but I'm not sure how to put them in the <gml:coordinates> yet (any ideas are welcome). I haven't found an example of this process either, although it must have been implemented many times in the past. Dimitrios Simos
________________________________ Από: Kralidis,Tom [Burlington] [mailto:[EMAIL PROTECTED] Αποστολή: Τρι 19/02/2008 18:11 Προς: Simos Dimitrios; MAPSERVER-USERS@LISTS.UMN.EDU Θέμα: RE: [UMN_MAPSERVER-USERS] Perform spatial filter in 2 different layers (e.g. "Which cities does Road X cross?") Dimitrios, Check out http://mapserver.gis.umn.edu/docs/howto/filterencoding. A WFS Intersect filter would look like: http://example.org/url?&version=1.0.0&service=WFS&request=GetFeature&typ ename=popplace&filter=<Filter> <Intersect><PropertyName>Geometry</PropertyName><gml:Polygon><gml:outerB oundaryIs><gml:LinearRing> <gml:coordinates>2488789,289552 2588789,289552 2588789,389552 2488789,389552 2488789,289552</gml:coordinates> </gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></Intersect></Filte r> Of course, how you acquire (WFS request) and setup / pass those geometries is up to your middleware. I'm not exactly sure whether MapServer's support of the Intersect filter works only with gml:Polygon, or other types. Assefa would know best here. Yiasou ..Tom ________________________________ From: UMN MapServer Users List [mailto:[EMAIL PROTECTED] On Behalf Of Simos Dimitrios Sent: 19 February, 2008 10:44 AM To: MAPSERVER-USERS@LISTS.UMN.EDU Subject: [UMN_MAPSERVER-USERS] Perform spatial filter in 2 different layers (e.g. "Which cities does Road X cross?") Hello list. I'm trying to perform somewhat more complex filters using the WFS. More specifically, I want to do the following, which I found in the list: [..] Ah, ok. For that kind of scenario (and I want to find :"The Road with name X which Cities crosses ?"), you could: - query a roads WFS to get geometry - pass these geometries to a WFS Intersect filter to seek ..Tom [..] Supposing I manage to get the geometries of the roads contained in a bounding box. My question is: how will I pass the geometries that the first filter returns to an intersect filter in the other geometry using the KVP (Keyword-Value Pair) way? Thanx a lot, Mimis
