Larry, > Thanks Simon. Your examples help. Let us know if you write that blog > article.
http://www.spatialdbadvisor.com/oracle_spatial_tips_tricks/110/esri-arcsde-exverted-and-inverted-polygons-and-oracle-spatial Aron, > Forgive me, if my comments are somewhat confusing. > > The isolated ERSI holes, are not added to the other inner rings. All isolated > ESRI holes are added as interior rings to the polygon being processed. Can you explain this some more? > Prior to writing the converter I did some interactive experiments with > ArcSDE. I found out, that ArcSDE actually accepts ESRI-loops sitting on the > outer side on an interior ring in a JTS polygon. Can you try the exverted and inverted polygons describe in the above article and tell me what happens? It should be as I expect but I have not used ArcSDE for over 4 years so I can't be sure if the issue is still as I described it. > ArcSDE will even accept multiple loops sitting on the outside of the exterior > ring in a JTS polygon. Such a polygon would need to be converted to a JTS > multipolygon, if it going to be SFS/JTS valid. The converter will not perform > such a conversion, as I think it is an error, to have such polygons in the > first place. This sounds like an exverted polygon. So, ESRI will accept it, but JTS (because it is OGC SFS based) will not? regards S -- SpatialDB Advice and Design, Solutions Architecture and Programming, Oracle Database 10g Administrator Certified Associate; Oracle Database 10g SQL Certified Professional Oracle Spatial, SQL Server, PostGIS, MySQL, ArcSDE, Manifold GIS, FME, Radius Topology and Studio Specialist. 39 Cliff View Drive, Allens Rivulet, 7150, Tasmania, Australia. Website: www.spatialdbadvisor.com Email: [email protected] Voice: +613 9016 3910 Mobile: +61 418 396391 Skype: sggreener Longitude: 147.20515 (147° 12' 18" E) Latitude: -43.01530 (43° 00' 55" S) NAC:W80CK 7SWP3 _______________________________________________ jts-devel mailing list [email protected] http://lists.refractions.net/mailman/listinfo/jts-devel
