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

OpenStreetMap trac at noreply.openstreetmap.org
Tue Oct 22 22:33:54 UTC 2013


#5018: what are the coordinates of a generated .PNG map
----------------------------+------------------------------------------
  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 pnorman):

 The export call can't take advantage of any tile caching, either on the
 edge cache servers or the render servers. Some back of the napkin
 calculations put it as about as expensive as 5000 tiles in terms of server
 resources.

 The [http://wiki.openstreetmap.org/wiki/Tile_usage_policy tile usage
 policy] covers the export call.

 Aside from all of this if the server load is above a certain point the
 export call shuts down to prioritize tile rendering.

 That being said, there probably is room for UI enhancements so that you
 know where you're rendering.

-- 
Ticket URL: <https://trac.openstreetmap.org/ticket/5018#comment:4>
OpenStreetMap <http://www.openstreetmap.org/>
OpenStreetMap is a free editable map of the whole world



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