Guenther Meyer píše v Čt 21. 05. 2009 v 09:02 +0200: > yes - if you can make use of a database with geospatial extension like > postgis. there you have functions to find out easily if a point or a line > (which streets are) lies inside a given polygon. > I you don't have those functions, I don't know if this is possible. > It may be, but this would be a very complex thing...
Thank you for your explanation. Would it be then possible to ask questions like: "Is the point at (x,y) inside any polygon, which has tag 'z'?" Or even something like a "JOIN" of the point itself with the polygon: "Give me all points in bbox (a,b,c,d) and the value of 'zone:xxx' of an encompassing polygon, if they lie in some"? Sorry for many questions, but I do not want to promote an idea without knowing that it's feasible... Thanks in advance, Radek Černoch _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
