2013/3/30 Hugues François <[email protected]>: > Hello, > > I'm back after few time because of work and because I had to look deeper at > OGC spec. to give a right answer. > > After I read it the implementation standard > (http://www.opengeospatial.org/standards/sfa) I definitively think the union > of two polygons sharing a limited number of points result in a valid > multipolygon since a multipolygon is defined as their elements' *interior* > may not intersect and may touch at only a finite number of points. > Furthermore, fig 12 and 17, draw an example similar to my case study to > illustrate respectively an invalid polygon and (17c) a valid multipolygon. > > When QGis validity checker throw an error of this kind of multipolygon, I > think it is wrong. Should I report a bug ?
Hello Huges, yes, the geometry is indeed valid. I also checked that spatialite reports no errors on (a simplified verision of) it while QGIS does, which seems like a bug to me. Goyo _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
