geos::operation::overlayng::OverlayPoints Class Reference

#include <OverlayPoints.h>

Collaboration diagram for geos::operation::overlayng::OverlayPoints:

Public Member Functions
	OverlayPoints (int p_opCode, const Geometry *p_geom0, const Geometry *p_geom1, const PrecisionModel *p_pm)
	OverlayPoints (const OverlayPoints &)=delete
OverlayPoints &	operator= (const OverlayPoints &)=delete
std::unique_ptr< Geometry >	getResult ()

Static Public Member Functions
static std::unique_ptr< Geometry >	overlay (int opCode, const Geometry *geom0, const Geometry *geom1, const PrecisionModel *pm)

Private Member Functions
void	computeIntersection (std::map< Coordinate, std::unique_ptr< Point >> &map0, std::map< Coordinate, std::unique_ptr< Point >> &map1, std::vector< std::unique_ptr< Point >> &resultList)
void	computeDifference (std::map< Coordinate, std::unique_ptr< Point >> &map0, std::map< Coordinate, std::unique_ptr< Point >> &map1, std::vector< std::unique_ptr< Point >> &resultList)
void	computeUnion (std::map< Coordinate, std::unique_ptr< Point >> &map0, std::map< Coordinate, std::unique_ptr< Point >> &map1, std::vector< std::unique_ptr< Point >> &resultList)
std::map< Coordinate, std::unique_ptr< Point > >	buildPointMap (const Geometry *geom)
Coordinate	roundCoord (const Point *pt, const PrecisionModel *pm) const

Private Attributes
int	opCode
const Geometry *	geom0
const Geometry *	geom1
const PrecisionModel *	pm
const GeometryFactory *	geometryFactory
std::vector< std::unique_ptr< Point > >	resultList

Detailed Description

Performs an overlay operation on inputs which are both point geometries.

Semantics are:

• Points are rounded to the precision model if provided
• Points with identical XY values are merged to a single point
• Extended ordinate values are preserved in the output, apart from merging
• An empty result is returned as POINT EMPTY

Author

Martin Davis

Definition at line 55 of file OverlayPoints.h.

Constructor & Destructor Documentation

geos::operation::overlayng::OverlayPoints::OverlayPoints ( int  p_opCode, const Geometry *  p_geom0, const Geometry *  p_geom1, const PrecisionModel *  p_pm  )

inline

Creates an instance of an overlay operation on inputs which are both point geometries.

Definition at line 94 of file OverlayPoints.h.

geos::operation::overlayng::OverlayPoints::OverlayPoints ( const OverlayPoints &  )

delete

Member Function Documentation

std::map<Coordinate, std::unique_ptr<Point> > geos::operation::overlayng::OverlayPoints::buildPointMap ( const Geometry *  geom )

private

void geos::operation::overlayng::OverlayPoints::computeDifference ( std::map< Coordinate, std::unique_ptr< Point >> &  map0, std::map< Coordinate, std::unique_ptr< Point >> &  map1, std::vector< std::unique_ptr< Point >> &  resultList  )

private

void geos::operation::overlayng::OverlayPoints::computeIntersection ( std::map< Coordinate, std::unique_ptr< Point >> &  map0, std::map< Coordinate, std::unique_ptr< Point >> &  map1, std::vector< std::unique_ptr< Point >> &  resultList  )

private

void geos::operation::overlayng::OverlayPoints::computeUnion ( std::map< Coordinate, std::unique_ptr< Point >> &  map0, std::map< Coordinate, std::unique_ptr< Point >> &  map1, std::vector< std::unique_ptr< Point >> &  resultList  )

private

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayPoints::getResult

(

)

Gets the result of the overlay.

Returns

the overlay result

OverlayPoints& geos::operation::overlayng::OverlayPoints::operator= ( const OverlayPoints &  )

delete

static std::unique_ptr<Geometry> geos::operation::overlayng::OverlayPoints::overlay ( int  opCode, const Geometry *  geom0, const Geometry *  geom1, const PrecisionModel *  pm  )

static

Performs an overlay operation on inputs which are both point geometries.

Coordinate geos::operation::overlayng::OverlayPoints::roundCoord ( const Point *  pt, const PrecisionModel *  pm  ) const

private

Member Data Documentation

const Geometry* geos::operation::overlayng::OverlayPoints::geom0

private

Definition at line 61 of file OverlayPoints.h.

const Geometry* geos::operation::overlayng::OverlayPoints::geom1

private

Definition at line 62 of file OverlayPoints.h.

const GeometryFactory* geos::operation::overlayng::OverlayPoints::geometryFactory

private

Definition at line 64 of file OverlayPoints.h.

int geos::operation::overlayng::OverlayPoints::opCode

private

Definition at line 60 of file OverlayPoints.h.

const PrecisionModel* geos::operation::overlayng::OverlayPoints::pm

private

Definition at line 63 of file OverlayPoints.h.

std::vector<std::unique_ptr<Point> > geos::operation::overlayng::OverlayPoints::resultList

private

Definition at line 65 of file OverlayPoints.h.

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

• OverlayPoints.h