[mkgmap-dev] Include the following patches into trunk -- Patch1 - Drop small PolygonsFrom Johann Gail johann.gail at gmx.de on Tue Mar 1 18:54:10 GMT 2011
Am 01.03.2011 19:44, schrieb Henning Scholland: > Am 01.03.2011 19:38, schrieb Felix Hartmann: >> On 01.03.2011 19:33, Felix Hartmann wrote: >>> The following patches are in my eyes really worthwhile and should be >>> added to trunk. They all work fine without glitches. >>> >>> 1. Drop small Polygons >>> I am not sure who wrote this patch, but I have been using it longtime >>> and it certainly does improve map performance especially on higher >>> resolutions. >>> It removes all polygons which consist of less than 8 pixels. >>> >>> If you deem that this is too extreme (though 8 pixels is really >>> nothing, and polygons of less than 8 pixel size are barely noticeable >>> anyhow - and only slow down map drawing) the following line could be >>> reduced to maybe 6 or 4 pixels: >>> + private static final int MIN_SIZE_POLYGON = 8; >> Ups forgot to say, I'm actually using it with a value of 15 and it seems >> to work pretty well with 15. > Wont it cause routing errors, if little highway-areas will be removed? > > If it is done correctly, the removing of the polygons take place after generating of the routing graph. So it should not harm.
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