Note that the concept ArrangementTraits_2 refines the concept PlanarMapWithIntersectionsTraits_2 and inherits all its types and operations.
In addition to the requirements of the PlanarMapWithIntersectionsTraits_2 concept, it must provide the types and operations listed below.
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A default constructor.
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flips the direction of the curve cv. The source and target points of cv interchange. |