One-dimensional version of an STR-packed R-tree. More...

#include <SIRtree.h>

Inheritance diagram for geos::index::strtree::SIRtree:

Public Member Functions
	SIRtree ()
	Constructs an SIRtree with the default node capacity.

	SIRtree (std::size_t nodeCapacity)
	Constructs an SIRtree with the given maximum number of child nodes that a node may have.

void	insert (double x1, double x2, void *item)

std::vector< void * > *	query (double x1, double x2)

std::vector< void * > *	query (double x)

	SIRtree (const SIRtree &)=delete

SIRtree &	operator= (const SIRtree &)=delete

Public Member Functions inherited from geos::index::strtree::AbstractSTRtree
	AbstractSTRtree (std::size_t newNodeCapacity)
	Constructs an AbstractSTRtree with the specified maximum number of child nodes that a node may have.

virtual void	build ()
	Creates parent nodes, grandparent nodes, and so forth up to the root node, for the data that has been inserted into the tree.

virtual std::size_t	getNodeCapacity ()
	Returns the maximum number of child nodes that a node may have.

void	iterate (ItemVisitor &visitor)

virtual void	boundablesAtLevel (int level, AbstractNode top, BoundableList boundables)

ItemsList *	itemsTree ()
	Gets a tree structure (as a nested list) corresponding to the structure of the items and nodes in this tree.

Protected Member Functions
std::unique_ptr< BoundableList >	createParentBoundables (BoundableList *childBoundables, int newLevel) override
	Sorts the childBoundables then divides them into groups of size M, where M is the node capacity.

AbstractNode *	createNode (int level) override

IntersectsOp *	getIntersectsOp () override

std::unique_ptr< BoundableList >	sortBoundables (const BoundableList *input)

Protected Member Functions inherited from geos::index::strtree::AbstractSTRtree
virtual AbstractNode *	lastNode (BoundableList *nodeList)

virtual AbstractNode *	getRoot ()

void	query (const void searchBounds, std::vector< void > &foundItems)
	Also builds the tree, if necessary.

void	query (const void *searchBounds, ItemVisitor &visitor)
	Also builds the tree, if necessary.

void	query (const void *searchBounds, const AbstractNode &node, ItemVisitor &visitor)

bool	remove (const void itemEnv, void item)
	Also builds the tree, if necessary.

std::unique_ptr< BoundableList >	boundablesAtLevel (int level)

Additional Inherited Members
Protected Attributes inherited from geos::index::strtree::AbstractSTRtree
AbstractNode *	root

std::vector< AbstractNode * > *	nodes

std::size_t	nodeCapacity

Detailed Description

One-dimensional version of an STR-packed R-tree.

SIR stands for "Sort-Interval-Recursive".

STR-packed R-trees are described in: P. Rigaux, Michel Scholl and Agnes Voisard. Spatial Databases With Application To GIS. Morgan Kaufmann, San Francisco, 2002.

See also: STRtree

Constructor & Destructor Documentation

◆ SIRtree()

geos::index::strtree::SIRtree::SIRtree ( const SIRtree & )

delete

Disable copy construction and assignment. Apparently needed to make this class compile under MSVC. (See https://stackoverflow.com/q/29565299)

Member Function Documentation

◆ createNode()

AbstractNode * geos::index::strtree::SIRtree::createNode ( int level )

overrideprotectedvirtual

Implements geos::index::strtree::AbstractSTRtree.

◆ createParentBoundables()

std::unique_ptr< BoundableList > geos::index::strtree::SIRtree::createParentBoundables	(	BoundableList *	childBoundables,
		int	newLevel
	)

overrideprotectedvirtual

Sorts the childBoundables then divides them into groups of size M, where M is the node capacity.

Reimplemented from geos::index::strtree::AbstractSTRtree.

◆ getIntersectsOp()

IntersectsOp * geos::index::strtree::SIRtree::getIntersectsOp ( )

inlineoverrideprotectedvirtual

Returns: a test for intersection between two bounds, necessary because subclasses of AbstractSTRtree have different implementations of bounds.

See also: IntersectsOp

Implements geos::index::strtree::AbstractSTRtree.

◆ query() [1/2]

std::vector< void * > * geos::index::strtree::SIRtree::query ( double x )

inline

Returns items whose bounds intersect the given value.

◆ query() [2/2]

std::vector< void * > * geos::index::strtree::SIRtree::query	(	double	x1,
		double	x2
	)

inline

Returns items whose bounds intersect the given bounds.

Parameters

x1	possibly equal to x2
x2

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

SIRtree.h

Public Member Functions

Protected Member Functions

Additional Inherited Members