[mkgmap-dev] shape merger in high-prec-coord branchFrom GerdP gpetermann_muenchen at hotmail.com on Wed Jan 15 20:50:22 GMT 2014
Hi WanMil, I am thinking about if it makes sense to add a kind of sudden merging in the multipolygon cut routines. The idea is as follows: If the cut of an area returns more than 2 areas, two of the areas can safely be merged if their common edges (1 edge is the connection of two points) are all connected. This would result in less cut artifacts. Maybe it is also possible to remove points synthetically added by the cut. What do you think? WanMil Well, my algo will probably not merge these polygons because they share no identical points when they were created with Java2DConverter.areaToShapes(). Maybe we can change that when we maintain a map of all the coords in the path so that we don't create different Coord instances for equal (or highPrecEqual) points, but that will slow down these routines. I think you coded this in PrecompSeaSaver. I think the artifacts are created by the rounding that happens when we convert from or to java.awt.geom.Area. -- View this message in context: http://gis.19327.n5.nabble.com/shape-merger-in-high-prec-coord-branch-tp5793093p5793274.html Sent from the Mkgmap Development mailing list archive at Nabble.com.
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