#include <qgsspatialindex.h>

Public Member Functions
	QgsSpatialIndex ()
	Constructor - creates R-tree. More...

	QgsSpatialIndex (const QgsFeatureIterator &fi)
	Constructor - creates R-tree and bulk loads it with features from the iterator. More...

	QgsSpatialIndex (const QgsSpatialIndex &other)
	Copy constructor. More...

	~QgsSpatialIndex ()
	Destructor finalizes work with spatial index. More...

bool	deleteFeature (const QgsFeature &f)
	Remove feature from index. More...

bool	insertFeature (const QgsFeature &f)
	Add feature to index. More...

QList< QgsFeatureId >	intersects (const QgsRectangle &rect) const
	Returns features that intersect the specified rectangle. More...

QList< QgsFeatureId >	nearestNeighbor (const QgsPoint &point, int neighbors) const
	Returns nearest neighbors (their count is specified by second parameter) More...

QgsSpatialIndex &	operator= (const QgsSpatialIndex &other)
	Implement assignment operator. More...

QAtomicInt	refs () const
	get reference count - just for debugging! More...

Static Protected Member Functions
static bool	featureInfo (const QgsFeature &f, SpatialIndex::Region &r, QgsFeatureId &id)

static SpatialIndex::Region	rectToRegion (const QgsRectangle &rect)

Friends
class	QgsFeatureIteratorDataStream

Detailed Description

Definition at line 48 of file qgsspatialindex.h.

Constructor & Destructor Documentation

◆ QgsSpatialIndex() [1/3]

QgsSpatialIndex::QgsSpatialIndex ( )

Constructor - creates R-tree.

Definition at line 221 of file qgsspatialindex.cpp.

◆ QgsSpatialIndex() [2/3]

QgsSpatialIndex::QgsSpatialIndex ( const QgsFeatureIterator & fi )

explicit

Constructor - creates R-tree and bulk loads it with features from the iterator.

This is much faster approach than creating an empty index and then inserting features one by one.

Note: added in 2.8

Definition at line 226 of file qgsspatialindex.cpp.

◆ QgsSpatialIndex() [3/3]

QgsSpatialIndex::QgsSpatialIndex ( const QgsSpatialIndex & other )

Copy constructor.

Definition at line 231 of file qgsspatialindex.cpp.

◆ ~QgsSpatialIndex()

QgsSpatialIndex::~QgsSpatialIndex ( )

Destructor finalizes work with spatial index.

Definition at line 236 of file qgsspatialindex.cpp.

Member Function Documentation

◆ deleteFeature()

bool QgsSpatialIndex::deleteFeature ( const QgsFeature & f )

Remove feature from index.

Definition at line 298 of file qgsspatialindex.cpp.

◆ featureInfo()

bool QgsSpatialIndex::featureInfo	(	const QgsFeature &	f,
		SpatialIndex::Region &	r,
		QgsFeatureId &	id
	)

staticprotected

Note: not available in python bindings

Definition at line 254 of file qgsspatialindex.cpp.

◆ insertFeature()

bool QgsSpatialIndex::insertFeature ( const QgsFeature & f )

Add feature to index.

Definition at line 267 of file qgsspatialindex.cpp.

◆ intersects()

QList< QgsFeatureId > QgsSpatialIndex::intersects ( const QgsRectangle & rect ) const

Returns features that intersect the specified rectangle.

Definition at line 309 of file qgsspatialindex.cpp.

◆ nearestNeighbor()

QList< QgsFeatureId > QgsSpatialIndex::nearestNeighbor	(	const QgsPoint &	point,
		int	neighbors
	)		const

Returns nearest neighbors (their count is specified by second parameter)

Definition at line 321 of file qgsspatialindex.cpp.

◆ operator=()

QgsSpatialIndex & QgsSpatialIndex::operator= ( const QgsSpatialIndex & other )

Implement assignment operator.

Definition at line 240 of file qgsspatialindex.cpp.

◆ rectToRegion()

SpatialIndex::Region QgsSpatialIndex::rectToRegion ( const QgsRectangle & rect )

staticprotected

Note: not available in python bindings

Definition at line 247 of file qgsspatialindex.cpp.

◆ refs()

QAtomicInt QgsSpatialIndex::refs ( ) const

get reference count - just for debugging!

Definition at line 334 of file qgsspatialindex.cpp.

Friends And Related Function Documentation

◆ QgsFeatureIteratorDataStream

friend class QgsFeatureIteratorDataStream

friend

Definition at line 102 of file qgsspatialindex.h.

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

/tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsspatialindex.h
/tmp/buildd/qgis-2.18.21+99unstable/src/core/qgsspatialindex.cpp

Public Member Functions

Static Protected Member Functions

Friends