Hi, 2012/4/15 Paul Hartmann <[email protected]> wrote: > 2012/4/15 Stefan Keller <[email protected]>: >> Hi, >> >> With a XAPI API I'd like to make following query types >> (operators/predicates): >> 1) OR query: Example "[amenity=restaurant] OR [tourism=office]" >> 2. NOT query: Example "NOT [cuisine=pizza]" >> >> What could be a suitable syntax for doing this? >> My suggestions: >> 1a) ?xapi=node[amenity=restaurant]|[tourism=office] >> or 1b) ?xapi=node[amenity=restaurant]|node[tourism=office] >> 2) ?xapi=-node[cuisine=pizza] >> >> Or did I miss something in >> http://wiki.openstreetmap.org/wiki/XAPI#Tag_Predicates ? >> >> Yours, Stefan > > Not sure, what you are up to, but you could use Overpass API, e.g. > > 1) > (node["name"="Lichtscheid"];node["name"="Müngstener Straße"]);out; > > full URL: > <http://overpass-api.de/api/interpreter?data=way%5B%22highway%22%21%3D%22residential%22%5D%2850%2E7%2C7%2E1%2C50%2E701%2C7%2E101%29%3Bout%3B> > > 2) > way["highway"!="residential"](50.7,7.1,50.701,7.101);out; [2] > > full URL: > <http://overpass-api.de/api/interpreter?data=way%5B%22highway%22%21%3D%22residential%22%5D%2850%2E7%2C7%2E1%2C50%2E701%2C7%2E101%29%3Bout%3B>
Thanks for the tip. I'm really after a clean extension of the XAPI syntax. The examples from Overpass API you show me seem to be little bit weird: > 1) > (node["name"="Lichtscheid"];node["name"="Müngstener Straße"]);out; Why parantheses? That's not needed here (and in XAPI neither). Why semicolon between tags? Is this the operator for OR? > 2) > way["highway"!="residential"](50.7,7.1,50.701,7.101);out; [2] Why "out" and why a semicolon before that? That's not URL like. Why "(50.7,7.1,50.701,7.101)"? There is a "[bbox=left,bottom,right,top]" parameter in XAPI for that. But what inspires me is the simple idea of != for NOT. Yours, S. _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
