[OpenStreetMap] #5018: what are the coordinates of a generated .PNG map

[OpenStreetMap]

#5018: what are the coordinates of a generated .PNG map
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  Reporter:  james_7114737  |      Owner:  rails-dev@…
      Type:  defect         |     Status:  new
  Priority:  minor          |  Milestone:
 Component:  website        |    Version:
Resolution:                 |   Keywords:  static map image coordinates
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Comment (by woodpeck):

 If your application would do the calculations (which tiles required for
 the static map in question) and then download these tiles and combine them
 into an image itself, then you wouldn't need the custom rendering
 capabilities of the web site and your application would be more resource
 friendly. Your application would still have to abide by the aforementioned
 tile usage policy, and take care not to run afoul of bulk downloading
 rules. There are some "static map" scripts out there that already do the
 maths, or you could check out
 http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames for code about how
 to get from coordinates to tile numbers.

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Ticket URL: <https://trac.openstreetmap.org/ticket/5018#comment:6>
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