geos::coverage::CoverageRingEdges Class Reference

#include <CoverageRingEdges.h>

Public Member Functions
	CoverageRingEdges (const std::vector< const Geometry * > &coverage)
std::vector< CoverageEdge * > &	getEdges ()
std::vector< CoverageEdge * >	selectEdges (std::size_t ringCount) const
std::vector< std::unique_ptr< Geometry > >	buildCoverage () const

Detailed Description

Models a polygonal coverage as a set of unique CoverageEdges, linked to the parent rings in the coverage polygons. Each edge has either one or two parent rings, depending on whether it is an inner or outer edge of the coverage. The source coverage is represented as a array of polygonal geometries (either geos::geom::Polygons or geos::geom::MultiPolygons).

Author

Martin Davis

Member Function Documentation

buildCoverage()

std::vector< std::unique_ptr< Geometry > > geos::coverage::CoverageRingEdges::buildCoverage

(

)

const

Recreates the polygon coverage from the current edge values.

Returns

an array of polygonal geometries representing the coverage

selectEdges()

std::vector< CoverageEdge * > geos::coverage::CoverageRingEdges::selectEdges

(

std::size_t

ringCount

)

const

Selects the edges with a given ring count (which can be 1 or 2).

Parameters

ringCount

the edge ring count to select (1 or 2)

Returns

the selected edges

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

• CoverageRingEdges.h