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[mkgmap-dev] [Patch] Improve Locator

From GerdP gpetermann_muenchen at hotmail.com on Fri Mar 2 17:13:47 GMT 2012


attached patch for the performance branch improves the Locator.
a) It uses a kd-tree to implement the findNextPoint() method. 
This may also be usable in other routines, did not look at this until now.

The implementation is based on the demo in wikepedia:
http://en.wikipedia.org/wiki/K-d_tree wikipedia 

The method in MapPointFastFindMap is slower and sometimes the 
kd-tree finds nearer places.

b) added memoization to LocatorConfig.getCountryISOCode()



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