geos::operation::geounion::CascadedUnion Class Reference

Provides an efficient method of unioning a collection of Geometries. More...

#include <CascadedUnion.h>

List of all members.

Public Member Functions
	CascadedUnion (const std::vector< geom::Geometry * > *geoms)
geom::Geometry *	Union ()
Static Public Member Functions
geom::Geometry *	Union (std::vector< geom::Geometry * > *geoms)
template<class T>
geom::Geometry *	Union (T start, T end)

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Detailed Description

Provides an efficient method of unioning a collection of Geometries.

This algorithm is more robust than the simple iterated approach of repeatedly unioning each geometry to a result geometry.

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Constructor & Destructor Documentation

geos::operation::geounion::CascadedUnion::CascadedUnion (  const std::vector< geom::Geometry * > *  geoms  )  [inline]

Creates a new instance to union the given collection of Geometrys. Parameters: geoms  a collection of Geometryal Geometrys ownership of elements _and_ vector are left to caller.

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Member Function Documentation

geom::Geometry* geos::operation::geounion::CascadedUnion::Union (   )

Computes the union of the input geometries. Returns: the union of the input geometries null if no input geometries were provided

template<class T> geom::Geometry* geos::operation::geounion::CascadedUnion::Union (  T  start, T  end )  [inline, static]

Computes the union of a set of Geometrys. T an iterator yelding something castable to const Geometry * Parameters: start  start iterator end  end iterator

geom::Geometry* geos::operation::geounion::CascadedUnion::Union (  std::vector< geom::Geometry * > *  geoms  )  [static]

Computes the union of a collection of Geometrys. Parameters: geoms  a collection of Geometrys. ownership of elements _and_ vector are left to caller.

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The documentation for this class was generated from the following file:

• CascadedUnion.h

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