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azzazello / andnav

Automatically exported from code.google.com/p/andnav
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Allow reloading only tiles intersecting the current viewport #38

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
Thanks for the functionality of caching tiles.  It's very useful.  But I have 
the feeling that when a tile has been cached once it's never updated again.  At 
the moment you can only clear the whole cache to force AndNav2 to update ALL 
tiles.  Since this is causing much traffic it would be nice to have a 
functionality for updating only those tiles that are intersecting or inside of 
the current viewport, independently from certain zoom levels.

I don't know if the map provider offers also information about the date a tile 
has been updated last.  If it does, one could also think about an automatic 
reloading of outdated tiles.  But that would be an own ticket.

Original issue reported on code.google.com by ste...@endrullis.de on 17 Jul 2010 at 3:04