# IPolygon.h File Reference

`#include <Geometry/ISurfaceAbstract.h>`
`#include <Geometry/ILinearRing.h>`
`#include <Common/Collection.h>`

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## Classes
class | FdoIPolygon
| The FdoIPolygon class is a polygon Geometry type. FdoIPolygon is defined by one exterior boundary and zero or more interior boundaries. Each of the boundaries must be a closed, simple LinearRing. More...
class | FdoPolygonCollection
| The FdoPolygonCollection class is a collection of CurvePolygon objects. More...