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[mkgmap-dev] Commit r3808: improve performance of ShapeMergeFilter

From svn commit svn at mkgmap.org.uk on Wed Feb 15 21:28:04 GMT 2017

Version mkgmap-r3808 was committed by gerd on Wed, 15 Feb 2017

improve performance of ShapeMergeFilter

The old code didn't work well when many (e.g. 1000+) distinct similar shapes were processed (e.g. buildings).
This typically happens only when style adds shapes at low resolutions.


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