Public Member Functions
	QgsSpatialIndex ()
	constructor - creates R-tree
	QgsSpatialIndex (const QgsSpatialIndex &other)
	copy constructor
	~QgsSpatialIndex ()
	destructor finalizes work with spatial index
QgsSpatialIndex &	operator= (const QgsSpatialIndex &other)
	implement assignment operator
bool	insertFeature (const QgsFeature &f)
	add feature to index
bool	deleteFeature (const QgsFeature &f)
	remove feature from index
QList< QgsFeatureId >	intersects (QgsRectangle rect) const
	returns features that intersect the specified rectangle
QList< QgsFeatureId >	nearestNeighbor (QgsPoint point, int neighbors) const
	returns nearest neighbors (their count is specified by second parameter)
int	refs () const
	get reference count - just for debugging!

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

Static Protected Member Functions
static SpatialIndex::Region	rectToRegion (QgsRectangle rect)

Constructor & Destructor Documentation

QgsSpatialIndex::QgsSpatialIndex ( )

constructor - creates R-tree

QgsSpatialIndex::QgsSpatialIndex ( const QgsSpatialIndex & other )

copy constructor

QgsSpatialIndex::~QgsSpatialIndex ( )

destructor finalizes work with spatial index

Member Function Documentation

bool QgsSpatialIndex::deleteFeature ( const QgsFeature & f )

remove feature from index

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

protected

bool QgsSpatialIndex::insertFeature ( const QgsFeature & f )

add feature to index

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

returns features that intersect the specified rectangle

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

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

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

implement assignment operator

Region QgsSpatialIndex::rectToRegion ( QgsRectangle rect )

staticprotected

int QgsSpatialIndex::refs ( ) const

get reference count - just for debugging!

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