QgsGenericSpatialIndex< T > Class Template Reference

A generic rtree spatial index based on a libspatialindex backend. More...

#include <qgsgenericspatialindex.h>

Public Member Functions
	QgsGenericSpatialIndex ()
	Constructor for QgsGenericSpatialIndex. More...
bool	insert (T *data, const QgsRectangle &bounds)
	Inserts new data into the spatial index, with the specified bounds. More...
bool	intersects (const QgsRectangle &bounds, const std::function< bool(T *data)> &callback) const
	Performs an intersection check against the index, for data intersecting the specified bounds. More...
bool	isEmpty () const
	Returns true if the index contains no items. More...
bool	remove (T *data, const QgsRectangle &bounds)
	Removes existing data from the spatial index, with the specified bounds. More...

Detailed Description

template<typename T>
class QgsGenericSpatialIndex< T >

A generic rtree spatial index based on a libspatialindex backend.

Note

Not available in Python bindings.

Since

QGIS 3.12

Definition at line 44 of file qgsgenericspatialindex.h.

Constructor & Destructor Documentation

QgsGenericSpatialIndex()

template<typename T >

QgsGenericSpatialIndex< T >::QgsGenericSpatialIndex ( )

inline

Constructor for QgsGenericSpatialIndex.

Definition at line 51 of file qgsgenericspatialindex.h.

Member Function Documentation

insert()

template<typename T >

bool QgsGenericSpatialIndex< T >::insert ( T *  data, const QgsRectangle &  bounds  )

inline

Inserts new data into the spatial index, with the specified bounds.

Ownership of data is not transferred, and it is the caller's responsibility to ensure that it exists for the lifetime of the spatial index.

Definition at line 63 of file qgsgenericspatialindex.h.

intersects()

template<typename T >

bool QgsGenericSpatialIndex< T >::intersects ( const QgsRectangle &  bounds, const std::function< bool(T *data)> &  callback  ) const

inline

Performs an intersection check against the index, for data intersecting the specified bounds.

The callback function will be called once for each matching data object encountered.

Definition at line 123 of file qgsgenericspatialindex.h.

isEmpty()

template<typename T >

bool QgsGenericSpatialIndex< T >::isEmpty ( ) const

inline

Returns true if the index contains no items.

Definition at line 136 of file qgsgenericspatialindex.h.

remove()

template<typename T >

bool QgsGenericSpatialIndex< T >::remove ( T *  data, const QgsRectangle &  bounds  )

inline

Removes existing data from the spatial index, with the specified bounds.

data is not deleted, and it is the caller's responsibility to ensure that it is appropriately cleaned up.

Definition at line 101 of file qgsgenericspatialindex.h.

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

• /build/qgis-3.37.0+git20240325+fdefdf9c27f+17bookworm/src/core/qgsgenericspatialindex.h