geos::operation::overlayng::RobustClipEnvelopeComputer Class Reference

#include <RobustClipEnvelopeComputer.h>

Collaboration diagram for geos::operation::overlayng::RobustClipEnvelopeComputer:

Public Member Functions
	RobustClipEnvelopeComputer (const Envelope *p_targetEnv)
Envelope	getEnvelope ()

Static Public Member Functions
static Envelope	getEnvelope (const Geometry *a, const Geometry *b, const Envelope *targetEnv)

Private Member Functions
void	add (const Geometry *g)
void	addCollection (const GeometryCollection *gc)
void	addPolygon (const Polygon *poly)
void	addPolygonRing (const LinearRing *ring)
void	addSegment (const Coordinate &p1, const Coordinate &p2)
bool	intersectsSegment (const Envelope *env, const Coordinate &p1, const Coordinate &p2)

Private Attributes
const Envelope *	targetEnv
Envelope	clipEnv

Detailed Description

Computes a robust clipping envelope for a pair of polygonal geometries. The envelope is computed to be large enough to include the full length of all geometry line segments which intersect a given target envelope. This ensures that line segments which might intersect are not perturbed when clipped using RingClipper.

Author

mdavis

Definition at line 52 of file RobustClipEnvelopeComputer.h.

Constructor & Destructor Documentation

geos::operation::overlayng::RobustClipEnvelopeComputer::RobustClipEnvelopeComputer

(

const Envelope *

p_targetEnv

)

Member Function Documentation

void geos::operation::overlayng::RobustClipEnvelopeComputer::add ( const Geometry *  g )

private

void geos::operation::overlayng::RobustClipEnvelopeComputer::addCollection ( const GeometryCollection *  gc )

private

void geos::operation::overlayng::RobustClipEnvelopeComputer::addPolygon ( const Polygon *  poly )

private

void geos::operation::overlayng::RobustClipEnvelopeComputer::addPolygonRing ( const LinearRing *  ring )

private

void geos::operation::overlayng::RobustClipEnvelopeComputer::addSegment ( const Coordinate &  p1, const Coordinate &  p2  )

private

static Envelope geos::operation::overlayng::RobustClipEnvelopeComputer::getEnvelope ( const Geometry *  a, const Geometry *  b, const Envelope *  targetEnv  )

static

Envelope geos::operation::overlayng::RobustClipEnvelopeComputer::getEnvelope

(

)

bool geos::operation::overlayng::RobustClipEnvelopeComputer::intersectsSegment ( const Envelope *  env, const Coordinate &  p1, const Coordinate &  p2  )

private

Member Data Documentation

Envelope geos::operation::overlayng::RobustClipEnvelopeComputer::clipEnv

private

Definition at line 58 of file RobustClipEnvelopeComputer.h.

const Envelope* geos::operation::overlayng::RobustClipEnvelopeComputer::targetEnv

private

Definition at line 57 of file RobustClipEnvelopeComputer.h.

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

• RobustClipEnvelopeComputer.h