geos::operation::overlayng::OverlayMixedPoints Class Reference

#include <OverlayMixedPoints.h>

Collaboration diagram for geos::operation::overlayng::OverlayMixedPoints:

Public Member Functions
	OverlayMixedPoints (int p_opCode, const Geometry *geom0, const Geometry *geom1, const PrecisionModel *p_pm)
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
std::unique_ptr< PointOnGeometryLocator >	createLocator (const Geometry *geomNonPoint)
std::unique_ptr< Geometry >	prepareNonPoint (const Geometry *geomInput)
std::unique_ptr< Geometry >	computeIntersection (const CoordinateArraySequence *coords) const
std::unique_ptr< Geometry >	computeUnion (const CoordinateArraySequence *coords)
std::unique_ptr< Geometry >	computeDifference (const CoordinateArraySequence *coords)
std::unique_ptr< Geometry >	createPointResult (std::vector< std::unique_ptr< Point >> &points) const
std::vector< std::unique_ptr< Point > >	findPoints (bool isCovered, const CoordinateArraySequence *coords) const
std::vector< std::unique_ptr< Point > >	createPoints (std::set< Coordinate > &coords) const
bool	hasLocation (bool isCovered, const Coordinate &coord) const
std::unique_ptr< Geometry >	copyNonPoint () const
std::unique_ptr< CoordinateArraySequence >	extractCoordinates (const Geometry *points, const PrecisionModel *pm) const
std::vector< std::unique_ptr< Polygon > >	extractPolygons (const Geometry *geom) const
std::vector< std::unique_ptr< LineString > >	extractLines (const Geometry *geom) const

Private Attributes
int	opCode
const PrecisionModel *	pm
const Geometry *	geomPoint
const Geometry *	geomNonPointInput
const GeometryFactory *	geometryFactory
bool	isPointRHS
std::unique_ptr< Geometry >	geomNonPoint
int	geomNonPointDim
std::unique_ptr< PointOnGeometryLocator >	locator
int	resultDim

Detailed Description

Computes an overlay where one input is Point(s) and one is not. This class supports overlay being used as an efficient way to find points within or outside a polygon.

Input semantics are:

• Duplicates are removed from Point output
• Non-point output is rounded and noded using the given precision model

Output semantics are:

• An empty result is an empty atomic geometry with dimension determined by the inputs and the operation, as per overlay semantics

For efficiency the following optimizations are used:

• Input points are not included in the noding of the non-point input geometry (in particular, they do not participate in snap-rounding if that is used).
• If the non-point input geometry is not included in the output it is not rounded and noded. This means that points are compared to the non-rounded geometry. This will be apparent in the result.

Author

Martin Davis

Definition at line 79 of file OverlayMixedPoints.h.

Constructor & Destructor Documentation

geos::operation::overlayng::OverlayMixedPoints::OverlayMixedPoints	(	int	p_opCode,
		const Geometry *	geom0,
		const Geometry *	geom1,
		const PrecisionModel *	p_pm
	)

Member Function Documentation

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::computeDifference ( const CoordinateArraySequence *  coords )

private

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::computeIntersection ( const CoordinateArraySequence *  coords ) const

private

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::computeUnion ( const CoordinateArraySequence *  coords )

private

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::copyNonPoint ( ) const

private

std::unique_ptr<PointOnGeometryLocator> geos::operation::overlayng::OverlayMixedPoints::createLocator ( const Geometry *  geomNonPoint )

private

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::createPointResult ( std::vector< std::unique_ptr< Point >> &  points ) const

private

std::vector<std::unique_ptr<Point> > geos::operation::overlayng::OverlayMixedPoints::createPoints ( std::set< Coordinate > &  coords ) const

private

std::unique_ptr<CoordinateArraySequence> geos::operation::overlayng::OverlayMixedPoints::extractCoordinates ( const Geometry *  points, const PrecisionModel *  pm  ) const

private

std::vector<std::unique_ptr<LineString> > geos::operation::overlayng::OverlayMixedPoints::extractLines ( const Geometry *  geom ) const

private

std::vector<std::unique_ptr<Polygon> > geos::operation::overlayng::OverlayMixedPoints::extractPolygons ( const Geometry *  geom ) const

private

std::vector<std::unique_ptr<Point> > geos::operation::overlayng::OverlayMixedPoints::findPoints ( bool  isCovered, const CoordinateArraySequence *  coords  ) const

private

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

(

)

bool geos::operation::overlayng::OverlayMixedPoints::hasLocation ( bool  isCovered, const Coordinate &  coord  ) const

private

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

static

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::prepareNonPoint ( const Geometry *  geomInput )

private

Member Data Documentation

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

private

Definition at line 88 of file OverlayMixedPoints.h.

std::unique_ptr<Geometry> geos::operation::overlayng::OverlayMixedPoints::geomNonPoint

private

Definition at line 91 of file OverlayMixedPoints.h.

int geos::operation::overlayng::OverlayMixedPoints::geomNonPointDim

private

Definition at line 92 of file OverlayMixedPoints.h.

const Geometry* geos::operation::overlayng::OverlayMixedPoints::geomNonPointInput

private

Definition at line 87 of file OverlayMixedPoints.h.

const Geometry* geos::operation::overlayng::OverlayMixedPoints::geomPoint

private

Definition at line 86 of file OverlayMixedPoints.h.

bool geos::operation::overlayng::OverlayMixedPoints::isPointRHS

private

Definition at line 89 of file OverlayMixedPoints.h.

std::unique_ptr<PointOnGeometryLocator> geos::operation::overlayng::OverlayMixedPoints::locator

private

Definition at line 93 of file OverlayMixedPoints.h.

int geos::operation::overlayng::OverlayMixedPoints::opCode

private

Definition at line 84 of file OverlayMixedPoints.h.

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

private

Definition at line 85 of file OverlayMixedPoints.h.

int geos::operation::overlayng::OverlayMixedPoints::resultDim

private

Definition at line 94 of file OverlayMixedPoints.h.

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

• OverlayMixedPoints.h