Hello, I tried to did the homework and looked pretty hard which made me the impression that GPS traces are the orphans of OSM. They are hardly ever mentioned in the developers docs, they are not part of the architecture schema graphics and only a brief sentence informs us that it is not "yet" possible to have them in a dump.
Could someone be son kind as to update me about which parts of our architecture handle these traces, how do we store them? (I can read code, you can point me to a repository path, too.) I am familiar with their privacy status, basically they can or cannot be associated with someone, and they can or cannot provide timestamps. My guess that this could have been the primary reason dobody seemed to bother to create a dump of them. First, there should be a planet.trace.dump, really. It would be so good and I'd like to see what could I help, that's why I'm asking about the architecture. Obviosuly they have to be preprocessed to remove all the private and held back data first. The other problem related to traces is the API. API can handle the following cases (apart from uploading): - retrieve all traces of a bounding box - retrieve all trace id's of an editor - getting detail infos on an id - getting one trace of a given id The API cannot: - provide all id's in a bounding box - it would be needed to generate statistics, for example without retrieving all of the traces - provide id's of a bounding box which is newer than a given timstamp or id or whatever is best according to the storage system - see below. - it would be useful, but not imperative if the detail would contain statistical data (number of nodes, tracks, labels, etc) on the track The second missing feature would make it actually not horribly painful to retrieve an area with traces the second time, since already retrieved traces wouldn't be needed to be retrieved all AGAIN. If you worked on an area with some few hundred thousands of points you could appreciate this. Without any promise I'm interested in checking whether these could be implemented. I would appreciate if I wouldn't need to browse _all_ of the OSM sources to figure out the location. ;-) Obviosuly if I'm missing a point I would very much appreciated the hints and advices. Thanks, Peter _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
