[OSM-talk] Question on filtering data

[Tim McNamara]

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 <edodd at billiau.net> 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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