[mapguide-users] Getting error "Geometry Conversion error" when doing SpatialFilter in MgCurvePolygon

[Gunter Becker]

Simply execute the Union-method before applying your spatial filter:

geometry = geometry.Union(geometry);

That's the way I workaround curve polygons for SQL Server 2008. In case of a
MgCurvePolygon the resulting geometry is a segmented MgPolygon. I don't know
if this is a bug in the library as I would expect also a MgCurvePolygon as
the result but it does a good job for workaround all types of curve
geometries in SQL Server 2008. Maybe this is an OGC conform behaviour of the
Union-method. Don't know!

Curve geometries should be supported in SQL Server 2012 but I am not aware
if the FDO Provider for SQL Server already supports these features. Haven't
tried it yet!

Gunter



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