[mkgmap-dev] How to split polygons into boundary relations with common ways?From Apollinaris Schoell aschoell at gmail.com on Tue Jan 24 15:58:21 GMT 2012
Don't know any software for osm files. But if you could create shape files first then there are 1 or 2 converters from shape to osm format which can create the relations and remove duplicate ways. On Jan 24, 2012, at 4:55 AM, Marko Mäkelä wrote: > This is somewhat off-topic for mkgmap, but I was thinking that perhaps > WanMil or someone else has worked on something similar. > > I got some boundary data. I converted a tiny part of it from Spatialite > to *.osm polygons with a self-made Perl script. There were some errors > in the data, such as nodes very close to each other, or some boundary > had one point less than the adjacent boundary. I fixed these in JOSM, by > merging the too close nodes, or adding the missing nodes to boundaries. > Already this was a considerable amount of work, because JOSM seems to > lack a validator test for "nodes too close to each other" when they > belong to different ways. > > Now, the next step would be to split these polygons (circular ways) to > boundary relations. Each polygon would have to be split to way segments, > and duplicate way segments should be removed. Then, relations should be > formed from the way segments for each area. Is there any software or > algorithm for doing this? > > Best regards, > > Marko > _______________________________________________ > mkgmap-dev mailing list > mkgmap-dev at lists.mkgmap.org.uk > http://www.mkgmap.org.uk/mailman/listinfo/mkgmap-dev
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