I'm not sure it's specified anywhere, but it is customary (and many tools expect) to receive a sorted OSM file: nodes first, followed by ways, followed by relations. This makes constructing an in-memory model of the data easier on the client side.
On Sun, Jun 26, 2011 at 12:05 PM, Dario Brandes <[email protected]> wrote: > hi matt, > > the main difference between our solutions is that you sort the data in > category's (nodes, ways, relations). We have only one list, in > which this elements are unsorted. This asynchronism is necessary to > keep our good server performance, because the output-module does not > have to await for all the data. It can start the output stream before. > What's your point of view? Do you really need this type of sorting? > > I hope we can find a solution, to make all happy :) > > Regards Dario > > > On Thu, 16 Jun 2011 19:22:54 +0100 > Matt Amos <[email protected]> wrote: > > > hi dario, > > > > there's experimental support in cgimap for JSON format, which will > > hopefully get enabled at 0.7 time (whenever that is). i've attached an > > example of the output in both JSON and XML for comparison. it looks > > extremely similar to the examples you've included below, so hopefully > > we can work together on this. :-) > > > > cheers, > > > > matt > > > > On Thu, Jun 16, 2011 at 5:04 PM, Dario Brandes <[email protected]> > > wrote: > > > Hello everyone, > > > > > > we from the xappy.js Team want talk with you about a JSON Standard > > > for osm. The GeoJSON Format is inapt to safe relations and so we > > > created something new. > > > Here the link to our wikipage: > > > https://github.com/slomo/osm-spline-xapi/wiki/JSON-Output > > > > > > We would like to hear your comments about our proposal. > > > > > > Regards Dario > > > > > > > > > > > > # JSON output format definition by example. > > > > > > **Note:** for simple reading we included whitespaces which are of > > > course omitted in the actual implementation. > > > > > > ## skeleton > > > { > > > "version": 0.6, > > > "generator": "xappy.js", > > > "xapi": { > > > "uri": "XXX", > > > "planetDate": 201106161601, > > > "copyright": "XXX", > > > "instance": "XXX" > > > }, > > > "elements": [ > > > ... > > > ... > > > ... > > > ] > > > } > > > > > > where the `elements` array obviously contains all the elements. > > > > > > ## node > > > { > > > "type": "node", > > > "id": 3596186, > > > "lat": 53.4633699598014, > > > "lon": -2.22667910006381, > > > "timestamp": "2007-06-21T17:10:58+01:00", > > > "version": 2, > > > "changeset": 2213, > > > "tags": [ > > > "amenity": "hospital", > > > "name": "Manchester Royal Infirmary" > > > ] > > > } > > > > > > ## way > > > { > > > "type": "way", > > > "id": 4958218, > > > "version": 3, > > > "timestamp": "2007-07-25T01:55:35+01:00", > > > "changeset": 2211, > > > "nodes": [ > > > 218963, > > > 331193 > > > ], > > > "tags":[ > > > "landuse": "residential", > > > "source": "landsat" > > > ] > > > } > > > > > > ## relation > > > { > > > "type": "relation", > > > "id": 2670, > > > "timestamp": "2007-10-25T03:05:34Z", > > > "version": 32, > > > "changeset": 2211, > > > "members": [ > > > { > > > "type":"way", > > > "ref":3992472, > > > "role": "" > > > }, > > > { > > > "type":"way", > > > "ref":3992524, > > > ], > > > "tags":[ > > > "name": "Fonnereau Way", > > > "network": "Ipswich foothpaths", > > > "type": "route" > > > ] > > > } > > > > > > _______________________________________________ > > > dev mailing list > > > [email protected] > > > http://lists.openstreetmap.org/listinfo/dev > > > > > > > > _______________________________________________ > dev mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/dev > >
_______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
