geos::geom::prep::BasicPreparedGeometry Class Reference

A base class for PreparedGeometry subclasses. More...

#include <BasicPreparedGeometry.h>

Inheritance diagram for geos::geom::prep::BasicPreparedGeometry:

Public Member Functions
	BasicPreparedGeometry (const Geometry *geom)
const geom::Geometry &	getGeometry () const override
	Gets the original Geometry which has been prepared. More...
const std::vector< const CoordinateXY * > *	getRepresentativePoints () const
bool	isAnyTargetComponentInTest (const geom::Geometry *testGeom) const
bool	contains (const geom::Geometry *g) const override
bool	containsProperly (const geom::Geometry *g) const override
bool	coveredBy (const geom::Geometry *g) const override
bool	covers (const geom::Geometry *g) const override
bool	crosses (const geom::Geometry *g) const override
bool	disjoint (const geom::Geometry *g) const override
bool	intersects (const geom::Geometry *g) const override
bool	overlaps (const geom::Geometry *g) const override
bool	touches (const geom::Geometry *g) const override
bool	within (const geom::Geometry *g) const override
std::unique_ptr< geom::CoordinateSequence >	nearestPoints (const geom::Geometry *g) const override
double	distance (const geom::Geometry *g) const override
bool	isWithinDistance (const geom::Geometry *geom, double dist) const override
std::string	toString ()

Protected Member Functions
void	setGeometry (const geom::Geometry *geom)
bool	envelopesIntersect (const geom::Geometry *g) const
bool	envelopeCovers (const geom::Geometry *g) const

Detailed Description

A base class for PreparedGeometry subclasses.

Contains default implementations for methods, which simply delegate to the equivalent Geometry methods. This class may be used as a "no-op" class for Geometry types which do not have a corresponding PreparedGeometry implementation.

Author

Martin Davis

Member Function Documentation

contains()

bool geos::geom::prep::BasicPreparedGeometry::contains ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon.

containsProperly()

bool geos::geom::prep::BasicPreparedGeometry::containsProperly ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon.

coveredBy()

bool geos::geom::prep::BasicPreparedGeometry::coveredBy ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

covers()

bool geos::geom::prep::BasicPreparedGeometry::covers ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon.

crosses()

bool geos::geom::prep::BasicPreparedGeometry::crosses ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

disjoint()

bool geos::geom::prep::BasicPreparedGeometry::disjoint ( const geom::Geometry *  g ) const

overridevirtual

Standard implementation for all geometries. Supports GeometryCollections as input.

Implements geos::geom::prep::PreparedGeometry.

distance()

double geos::geom::prep::BasicPreparedGeometry::distance ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon, and geos::geom::prep::PreparedLineString.

envelopeCovers()

bool geos::geom::prep::BasicPreparedGeometry::envelopeCovers ( const geom::Geometry *  g ) const

protected

Determines whether the envelope of this geometry covers the Geometry g.

Parameters

g	a Geometry

Returns

true if g is contained in this envelope

envelopesIntersect()

bool geos::geom::prep::BasicPreparedGeometry::envelopesIntersect ( const geom::Geometry *  g ) const

protected

Determines whether a Geometry g interacts with this geometry by testing the geometry envelopes.

Parameters

g	a Geometry

Returns

true if the envelopes intersect

getGeometry()

const geom::Geometry& geos::geom::prep::BasicPreparedGeometry::getGeometry ( ) const

inlineoverridevirtual

Gets the original Geometry which has been prepared.

Returns

the base geometry

Implements geos::geom::prep::PreparedGeometry.

getRepresentativePoints()

const std::vector<const CoordinateXY*>* geos::geom::prep::BasicPreparedGeometry::getRepresentativePoints ( ) const

inline

Gets the list of representative points for this geometry. One vertex is included for every component of the geometry (i.e. including one for every ring of polygonal geometries)

Returns

a List of Coordinate

intersects()

bool geos::geom::prep::BasicPreparedGeometry::intersects ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon, geos::geom::prep::PreparedPoint, and geos::geom::prep::PreparedLineString.

isAnyTargetComponentInTest()

bool geos::geom::prep::BasicPreparedGeometry::isAnyTargetComponentInTest

(

const geom::Geometry *

testGeom

)

const

Tests whether any representative of the target geometry intersects the test geometry. This is useful in A/A, A/L, A/P, L/P, and P/P cases.

Parameters

testGeom

the test geometry

Returns

true if any component intersects the areal test geometry

isWithinDistance()

bool geos::geom::prep::BasicPreparedGeometry::isWithinDistance ( const geom::Geometry *  geom, double  dist  ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedPolygon, and geos::geom::prep::PreparedLineString.

nearestPoints()

std::unique_ptr<geom::CoordinateSequence> geos::geom::prep::BasicPreparedGeometry::nearestPoints ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

Reimplemented in geos::geom::prep::PreparedLineString.

overlaps()

bool geos::geom::prep::BasicPreparedGeometry::overlaps ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

setGeometry()

void geos::geom::prep::BasicPreparedGeometry::setGeometry ( const geom::Geometry *  geom )

protected

Sets the original Geometry which will be prepared.

touches()

bool geos::geom::prep::BasicPreparedGeometry::touches ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

within()

bool geos::geom::prep::BasicPreparedGeometry::within ( const geom::Geometry *  g ) const

overridevirtual

Default implementation.

Implements geos::geom::prep::PreparedGeometry.

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

• BasicPreparedGeometry.h