Polygons are made up of rings. A ring is closed path that defines a 2D area, whose first and last point are the same. This interface provides access to a polygon’s rings, providing methods to add and delete rings from a polygon object.
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 | Properties | 
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 | Gets the number of rings in a geometry. | |
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 | Gets the ILinearRing element in the specified zero-based index. | |
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 | Methods | 
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 | Adds a ring to a polygon. | |
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 | Deletes a ring from a polygon. |