geos::coverage::CoverageEdge Class Reference

#include <CoverageEdge.h>

Public Member Functions
	CoverageEdge (std::unique_ptr< CoordinateSequence > &&pts, bool isFreeRing)
std::unique_ptr< LineString >	toLineString (const GeometryFactory *geomFactory)
void	incRingCount ()
std::size_t	getRingCount () const
bool	isFreeRing () const
void	setCoordinates (const CoordinateSequence *pts)
const CoordinateSequence *	getCoordinates () const
const Coordinate &	getEndCoordinate () const
const Coordinate &	getStartCoordinate () const

Static Public Member Functions
static LineSegment	key (const CoordinateSequence &ring)
static LineSegment	key (const CoordinateSequence &ring, std::size_t start, std::size_t end)
static std::unique_ptr< CoverageEdge >	createEdge (const CoordinateSequence &ring)
static std::unique_ptr< CoverageEdge >	createEdge (const CoordinateSequence &ring, std::size_t start, std::size_t end)
static std::unique_ptr< MultiLineString >	createLines (const std::vector< CoverageEdge * > &edges, const GeometryFactory *geomFactory)

Detailed Description

An edge of a polygonal coverage formed from all or a section of a polygon ring. An edge may be a free ring, which is a ring which has not node points (i.e. does not touch any other rings in the parent coverage).

Author

mdavis

Member Function Documentation

isFreeRing()

bool geos::coverage::CoverageEdge::isFreeRing ( ) const

inline

Returns whether this edge is a free ring; i.e. one with no constrained nodes.

Returns

true if this is a free ring

key() [1/2]

static LineSegment geos::coverage::CoverageEdge::key ( const CoordinateSequence &  ring )

static

Computes a key segment for a ring. The key is the segment starting at the lowest vertex, towards the lowest adjacent distinct vertex.

Parameters

ring	a linear ring

Returns

a LineSegment representing the key

key() [2/2]

static LineSegment geos::coverage::CoverageEdge::key ( const CoordinateSequence &  ring, std::size_t  start, std::size_t  end  )

static

Computes a distinct key for a section of a linear ring.

Parameters

ring	the linear ring
start	index of the start of the section
end	end index of the end of the section

Returns

a LineSegment representing the key

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

• CoverageEdge.h