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| class   | BoundaryOp | 
|   | Computes the boundary of a IGeometry. Allows specifying the IBoundaryNodeRule to be used. This operation will always return a IGeometry of the appropriate dimension for the boundary (even if the input geometry is empty). The boundary of zero-dimensional geometries (Points) is always the empty IGeometryCollection. /summary> <author>Martin Davis</author>  More...
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| class   | Counter | 
|   | Stores an integer count, for use as a Map entry. /summary> <author>Martin Davis</author>  More...
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| class   | GeometryGraphOperation | 
|   | The base class for operations that require GeometryGraphs.  More...
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| class   | IsSimpleOp | 
|   | Tests whether a IGeometry is simple. In general, the SFS specification of simplicity follows the rule: 
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A Geometry is simple if and only if the only self-intersections are at boundary points.  
 
 
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