[mkgmap-dev] [PATCH v1] MP: Join tags by intersection and not by union

Fri Mar 26 07:09:17 GMT 2010

On Thu, Mar 25, 2010 at 08:12:51PM +0100, WanMil wrote:
> Did anyone test this patch?
> I recommend to commit it because it fixes an incompatibility with the 
> "official" definition of multipolygons.

I just did.  I also tried recompiling the same map without the patch.
Same size gmapsupp.img (both look fine in QLandkarteGT).  The only
difference in the log file (after stripping the timestamps) is the format
of these messages:

WARNING (MultiPolygonRelation): 63240004.osm.gz: Polygon 4611686018427486163(15P : (45329139[15P]) carries role inner but is not inside any other polygon. Potentially it does not belong to this multipolygon.

The patch replaces the " : (" with ")(", balancing the parenthesis.

	Marko