Hi Ticker, do you have an example for such a problem case? Gerd ________________________________________ Von: mkgmap-dev <mkgmap-dev-bounces@lists.mkgmap.org.uk> im Auftrag von Ticker Berkin <rwb-mkgmap@jagit.co.uk> Gesendet: Mittwoch, 25. Januar 2017 13:25:34 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: Re: [mkgmap-dev] Multipolygon-Relation checks in mkgmap Hi Gerd Yes - please I started looking at MultiPolygonRelation yesterday with a view of trying to convert it to use the new ShapeSplitter algorithm. I think that the way a self-intersecting polygon is rewritten after a split using the Java2D library causes problems for the new algorithm when it makes a later cut for points limits or subdivisions, even when the next cut isn't in the overlapped area. All I've done so far is convert a few more places to use highPrec logic and then slightly disparaging at the complexity of the whole thing. Ticker On Wed, 2017-01-25 at 09:05 +0000, Gerd Petermann wrote:
Hi all,
I'd like to rewrite the code in MultiPolygonRelation so that it tolerates more mp-rels. For example, the relation http://www.openstreetmap.org/relation/2199651 produces these warnings: WARN: uk.me.parabola.mkgmap.reader.osm.MultiPolygonRelation f:\osm\rel2199651.osm: Some polygons are intersecting. This is not allowed in multipolygons. WARN: uk.me.parabola.mkgmap.reader.osm.MultiPolygonRelation f:\osm\rel2199651.osm: - http://www.openstreetmap.org/way/165084794 WARN: uk.me.parabola.mkgmap.reader.osm.MultiPolygonRelation f:\osm\rel2199651.osm: - http://www.openstreetmap.org/way/165084810 WARN: uk.me.parabola.mkgmap.reader.osm.MultiPolygonRelation f:\osm\rel2199651.osm: Polygon 4611686018427387906(8P)(165084810[8P]) carries role inner but is not inside any other polygon. Potentially it does not belong to this multipolygon. The inner way touches the outer way in one point. My understanding is that this is correct, mkgmap should not complain about it.
OK? Gerd
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