objtree::Node Class Reference

#include <node.h>

List of all members.

Public Member Functions
void	add (Object *object)
Node *	child (unsigned char place, bool createNew=false)
void	deleteIfEmpty ()
Node *	neighbor (unsigned char dir)
	Node (unsigned char place=0, Node *parent=NULL)
const std::list< Object * > &	objects () const
Node *	parent ()
void	removeObject (Object *object)
	~Node ()
Static Public Member Functions
static Box &	getChildBox (unsigned char place, Box &childBox, const Box &parentBox)
Static Public Attributes
static const unsigned int	CHILDREN = 8
static const unsigned int	NEIGHBORS = 26
Private Member Functions
Node *	computeNeighbor (unsigned char dir)
Node *	parentNeighborChild (unsigned char parentNeighbor, unsigned char child)
Static Private Member Functions
static unsigned char	reverseNeighborId (unsigned char dir)
Private Attributes
Node *	m_children [CHILDREN]
Node *	m_neighbors [NEIGHBORS]
std::list< Object * >	m_objects
Node *	m_parent
unsigned char	m_place

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Detailed Description

Octree node class.

Definition at line 43 of file node.h.

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Constructor & Destructor Documentation

objtree::Node::Node	(	unsigned char	place = 0,
		Node *	parent = NULL
	)

A constructor. Creates a new node.

Parameters:

place	position inside the parent
parent	pointer to the parent

Definition at line 40 of file node.cpp.

objtree::Node::~Node

(

)

A destructor.

Definition at line 76 of file node.cpp.

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Member Function Documentation

void objtree::Node::add

(

Object *

object

)

Adds object to the node.

Parameters:

object

object to add

Definition at line 149 of file node.cpp.

Node * objtree::Node::child	(	unsigned char	place,
		bool	createNew = false
	)

Returns pointer to the child.

Parameters:

place	child position
createNew	if true non-existing childs are created

Returns:

pointer to child

Definition at line 116 of file node.cpp.

Node * objtree::Node::computeNeighbor

(

unsigned char

dir

)

[private]

Computes neighbor from node position and neighbor direction. Returns pointer to the computed node.

Parameters:

dir	neighbor direction

Returns:

pointer to the neighbor or NULL if neighbor doesn't exists

Definition at line 246 of file node.cpp.

void objtree::Node::deleteIfEmpty

(

)

Removes node if it doesn't contain any children and objects.

Definition at line 309 of file node.cpp.

Box & objtree::Node::getChildBox	(	unsigned char	place,
		Box &	childBox,
		const Box &	parentBox
	)		[static]

Computes position and size of selected child node.

Parameters:

place	child position
childBox	output computed position and size
parentBox	parent bounding box

Returns:

computed position and size

Definition at line 162 of file node.cpp.

Node * objtree::Node::neighbor

(

unsigned char

dir

)

Returns pointer to the neighbor.

Parameters:

dir	neighbor direction (0-25)

Returns:

pointer to the neighbor

Definition at line 131 of file node.cpp.

const std::list< Object * > & objtree::Node::objects

(

)

const

Returns objects in node.

Returns:

std::list of objects

Definition at line 140 of file node.cpp.

Node * objtree::Node::parent

(

)

Returns node parent.

Returns:

node parent

Definition at line 105 of file node.cpp.

Node * objtree::Node::parentNeighborChild	(	unsigned char	parentNeighbor,
		unsigned char	child
	)		[private]

Returns pointer to the child from parent neighbor.

Parameters:

parentNeighbor	parent neighbor direction
child	child position

Returns:

pointer to the selected node

Definition at line 211 of file node.cpp.

void objtree::Node::removeObject

(

Object *

object

)

Removes object from node. Also removes node if there is no one remaining.

Parameters:

object

pointer to the object

Definition at line 294 of file node.cpp.

unsigned char objtree::Node::reverseNeighborId

(

unsigned char

dir

)

[static, private]

Returns opposite neighbor direction.

Parameters:

dir	neighbor direction

Returns:

opposite neighbor direction

Definition at line 284 of file node.cpp.

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Member Data Documentation

const unsigned int objtree::Node::CHILDREN = 8 [static]

Definition at line 46 of file node.h.

Node* objtree::Node::m_children[CHILDREN] [private]

Definition at line 69 of file node.h.

Node* objtree::Node::m_neighbors[NEIGHBORS] [private]

Definition at line 60 of file node.h.

std::list<Object*> objtree::Node::m_objects [private]

Definition at line 70 of file node.h.

Node* objtree::Node::m_parent [private]

Definition at line 51 of file node.h.

unsigned char objtree::Node::m_place [private]

Definition at line 50 of file node.h.

const unsigned int objtree::Node::NEIGHBORS = 26 [static]

Definition at line 47 of file node.h.

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

• node.h
• node.cpp