Liz - Do you have experience with computer programming? You will need to know how to process XML. I don't have too much experience with the OSM API, but this should be fairly straightforward.
I would break the task up into something like this: Download details for all of the changesets of that user, extract id numbers [1] Split the 600km2 into bounding boxes by calculating what the API allows as <area maximum="">[2] For each bounding box: download features [3] for each feature, check feature id against user's changes if that feature is a match, add it to a list of matches [1] http://wiki.openstreetmap.org/wiki/API_v0.6#Methods_for_User_Data [2] http://wiki.openstreetmap.org/wiki/API_v0.6#Capabilities:_GET_.2Fapi.2Fcapabilities [3] http://wiki.openstreetmap.org/wiki/API_v0.6#Retrieving_map_data_by_bounding_box:_GET_.2Fapi.2F0.6.2Fmap On 14 July 2010 22:22, Liz <[email protected]> wrote: > I would like to filter OSM data in a large area which is about 600km square > and find what has been surveyed by a particular mapper. > > If data has been added to this later eg a maxspeed tag by another mapper, I > do > not want this data excluded. > > I accept that this may involve a series of searches. > > Can anyone assist me? >
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