[mkgmap-dev] Commit: r2971: Avoid precalculation of area size for sea polygons created by the SeaGenerator.From GerdP gpetermann_muenchen at hotmail.com on Thu Jan 23 09:21:04 GMT 2014
Hi WanMil, this doesn't seem to work. I still see the tag in the precompiled sea data: <tag k="natural" v="sea"/> <tag k="mkgmap:cache_area_size" v="1048709826.5"/> I don't fully understand the idea. The current implementation seems to calculate the value when precompiling and avoids recalculation when reading the precompiled data. Gerd P.S. I found some nice performance improvements for the precompSeaMerger. Reduced run time from 2200 sec to ~330sec. The most important change is to use BoundaryUtil.addToPath() instead of Area.add(). See attached patch for the high-prec-branch. I'll probably move the code for addToPath() from BoundaryUtil to Java2DConverter. PrecompSeaMerger.java.patch <http://gis.19327.n5.nabble.com/file/n5794046/PrecompSeaMerger.java.patch> svn commit wrote > Version mkgmap-r2971 was committed by wanmil on Thu, 16 Jan 2014 > > Avoid precalculation of area size for sea polygons created by the > SeaGenerator. > > For all sea polygons the area size was added as tag which increases the > file size of the sea tiles but does not really help. The size only > calculated the size of the sea in one sea tile and it's a bit random where > the borders of a sea tile are. So the area size is not usefull. > _______________________________________________ > mkgmap-dev mailing list > mkgmap-dev at .org > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev -- View this message in context: http://gis.19327.n5.nabble.com/Commit-r2971-Avoid-precalculation-of-area-size-for-sea-polygons-created-by-the-SeaGenerator-tp5793369p5794046.html Sent from the Mkgmap Development mailing list archive at Nabble.com.
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