Click here to see the SAS code.
Click here to see the example.

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This example demonstrates how to use OpenStreetmaps (or other tile-based
maps available on the web) in SAS.  It demonstrates how to calculate 
the x/y id numbers of the tiles that correspond to your lat/longs,
how to programmatically download the map tiles, and then how to 
display them with your point-markers in SAS/Graph.

This is a good alternative to using Google Maps, without violating the
Google Maps rules, and exposing your private data to the Google servers.

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