geos::geom::prep::PreparedPolygonCovers Class Reference

Computes the covers spatial relationship predicate for a PreparedPolygon relative to all other Geometry classes. More...

#include <PreparedPolygonCovers.h>

Inheritance diagram for geos::geom::prep::PreparedPolygonCovers:

Collaboration diagram for geos::geom::prep::PreparedPolygonCovers:

Public Member Functions
	PreparedPolygonCovers (const PreparedPolygon *const prep)
	Creates an instance of this operation. More...
bool	covers (const Geometry *geom)
	Tests whether this PreparedPolygon covers a given geometry. More...
Public Member Functions inherited from geos::geom::prep::AbstractPreparedPolygonContains
	AbstractPreparedPolygonContains (const PreparedPolygon *const p_prepPoly)
	AbstractPreparedPolygonContains (const PreparedPolygon *const p_prepPoly, bool p_requireSomePointInInterior)
	~AbstractPreparedPolygonContains () override
Public Member Functions inherited from geos::geom::prep::PreparedPolygonPredicate
	PreparedPolygonPredicate (const PreparedPolygon *const p_prepPoly)
	Creates an instance of this operation. More...
virtual	~PreparedPolygonPredicate ()

Static Public Member Functions
static bool	covers (const PreparedPolygon *const prep, const geom::Geometry *geom)
	Computes the covers predicate between a PreparedPolygon and a Geometry. More...

Protected Member Functions
bool	fullTopologicalPredicate (const geom::Geometry *geom) override
Protected Member Functions inherited from geos::geom::prep::AbstractPreparedPolygonContains
bool	eval (const geom::Geometry *geom)
bool	evalPointTestGeom (const geom::Geometry *geom, geom::Location outermostLoc)
Protected Member Functions inherited from geos::geom::prep::PreparedPolygonPredicate
geom::Location	getOutermostTestComponentLocation (const geom::Geometry *testGeom) const
	Returns the outermost Location among a test point from each components of the test geometry. More...
bool	isAllTestComponentsInTargetInterior (const geom::Geometry *testGeom) const
	Tests whether all components of the test Geometry are contained in the interior of the target geometry. More...
bool	isAnyTestComponentInTarget (const geom::Geometry *testGeom) const
	Tests whether any component of the test Geometry intersects the area of the target geometry. More...
bool	isAnyTestComponentInTargetInterior (const geom::Geometry *testGeom) const
	Tests whether any component of the test Geometry intersects the interior of the target geometry. More...
bool	isAnyTargetComponentInAreaTest (const geom::Geometry *testGeom, const geom::Coordinate::ConstVect *targetRepPts) const

Additional Inherited Members
Protected Attributes inherited from geos::geom::prep::AbstractPreparedPolygonContains
bool	requireSomePointInInterior
Protected Attributes inherited from geos::geom::prep::PreparedPolygonPredicate
const PreparedPolygon *const	prepPoly

Detailed Description

Computes the covers spatial relationship predicate for a PreparedPolygon relative to all other Geometry classes.

Uses short-circuit tests and indexing to improve performance.

It is not possible to short-circuit in all cases, in particular in the case where the test geometry touches the polygon linework. In this case full topology must be computed.

Author

Martin Davis

Definition at line 55 of file PreparedPolygonCovers.h.

Constructor & Destructor Documentation

geos::geom::prep::PreparedPolygonCovers::PreparedPolygonCovers ( const PreparedPolygon *const  prep )

inline

Creates an instance of this operation.

Parameters

prep	the PreparedPolygon to evaluate

Definition at line 88 of file PreparedPolygonCovers.h.

Member Function Documentation

static bool geos::geom::prep::PreparedPolygonCovers::covers ( const PreparedPolygon *const  prep, const geom::Geometry *  geom  )

inlinestatic

Computes the covers predicate between a PreparedPolygon and a Geometry.

Parameters

prep	the prepared polygon
geom	a test geometry

Returns

true if the polygon covers the geometry

Definition at line 77 of file PreparedPolygonCovers.h.

References covers().

Referenced by covers().

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bool geos::geom::prep::PreparedPolygonCovers::covers ( const Geometry *  geom )

inline

Tests whether this PreparedPolygon covers a given geometry.

Parameters

geom	the test geometry

Returns

true if the test geometry is covered

Definition at line 99 of file PreparedPolygonCovers.h.

bool geos::geom::prep::PreparedPolygonCovers::fullTopologicalPredicate ( const geom::Geometry *  geom )

overrideprotectedvirtual

Computes the full topological covers predicate. Used when short-circuit tests are not conclusive.

Parameters

geom	the test geometry

Returns

true if this prepared polygon covers the test geometry

Implements geos::geom::prep::AbstractPreparedPolygonContains.

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

• PreparedPolygonCovers.h