[mkgmap-dev] Commit: r2971: Avoid precalculation of area size for sea polygons created by the SeaGenerator.From WanMil wmgcnfg at web.de on Thu Jan 23 12:00:37 GMT 2014
Hi Gerd, thanks for the hint. It's fixed now. I have no time to test your patch now but it sounds good :-) WanMil > 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. > _______________________________________________ > mkgmap-dev mailing list > mkgmap-dev at lists.mkgmap.org.uk > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev >
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