[OSM-talk] low resource osm xapi instance

[Ian]

On Tuesday, May 24, 2011 9:32:06 AM UTC-5, Ian wrote:
>
> On Tuesday, May 24, 2011 7:38:25 AM UTC-5, Phil! Gold wrote:
>>
>> * Robin Paulson <robi... at gmail.com> [2011-05-24 11:31 +1200]:
>> > this is my query:
>> > 
>> http://open.mapquestapi.com/xapi/api/0.6/relation[route=bus][ref=010][bbox=-174.327,-37.236,175.324,-36.519]
>>
>> Everything I've read about XAPI and JXAPI has said that only one predicate
>> is supported, aside from the bbox predicate.  It's possible that you're
>> getting all the bus routes within that bbox.
>>
> JXAPI allows multiple predicates, but they are currently OR'd rather than 
> AND'd like I meant them to be. The above query is akin to saying "give me 
> all relations with route=bus OR ref=010 OR in bbox=...".
>

I just pushed some code out (and deployed to jxapi.osm.org) that fixes this. 
You can specify multiple tag predicates and they will be AND'd:

[route=bus][ref=010] = (route=bus) AND (ref=010)
[route=bus|foo][ref=010] = ((route=bus) OR (route=foo)) AND (ref=010)
 

>
> And yes, bbox'd relation queries aren't quite working. In this particular 
> case I would suggest that you query for relation[ref=010] (since it is 
> likely to return the fewest results) and use JOSM or similar to filter out 
> what you're looking for. 
>
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