[ZS0] Re: [mapguide-users] [ZS0] Combining features

[Kenneth Skovhede, GEOGRAF A/S]

My experience is that MapGuide does not always handle geometry 
collections correctly.
Not sure if it is a provider specific issue.

My workaround is to split the feature into three rows, with MultiPoint, 
MultiLine and MultiPolygon.

Regards, Kenneth Skovhede, GEOGRAF A/S



A H skrev:
> i come into another problem. now instead of just polygons, i want to combine
> other geometry types.
>
> i tried to use this:
>
> 				MgGeometryCollection geometries = new MgGeometryCollection();
> 				MgAgfReaderWriter geometryReaderWriter = new MgAgfReaderWriter();
> 				MgGeometryFactory geometryFactory = new MgGeometryFactory();
> 				MgMultiGeometry newGeometry;
> 				
> 				while(featureReader.ReadNext())
> 				{
> 					MgByteReader temp = featureReader.GetGeometry("GEOM");
> 					
> 					MgGeometry tempGeo = geometryReaderWriter.Read(temp);
> 					
> 					geometries.Add(tempGeo);
> 				}
> 				newGeometry = geometryFactory.MgMultiGeometry(geometries);
> 				
> 				MgByteReader geom = geometryReaderWriter.Write(newGeometry);
>
>
> no error, but the new area doesn't appear on map. is it possible to do with
> this code?
>