A node in the volume octree. More...

#include <OgreVolumeOctreeNode.h>

Inheritance diagram for Ogre::Volume::OctreeNode:

Public Member Functions
	OctreeNode (const Vector3 &from=Vector3::ZERO, const Vector3 &to=Vector3::ZERO)
	Constructor.
virtual	~OctreeNode (void)
	Destructor.
virtual OctreeNode *	createInstance (const Vector3 &from, const Vector3 &to)
	Factory method to create octree nodes.
const Vector3	getCenter (void) const
	Gets the center of this cell.
const Vector3	getCenterBack (void) const
	Gets the center of the corners 0, 1, 4, 5.
const Vector3	getCenterBackBottom (void) const
	Gets the center of the corners 0, 1.
const Vector3	getCenterBackLeft (void) const
	Gets the center of the corners 0, 4.
const Vector3	getCenterBackRight (void) const
	Gets the center of the corners 1, 5.
const Vector3	getCenterBackTop (void) const
	Gets the center of the corners 4, 5.
const Vector3	getCenterBottom (void) const
	Gets the center of the corners 0, 1, 2, 3.
const Vector3	getCenterFront (void) const
	Gets the center of the corners 2, 3, 6, 7.
const Vector3	getCenterFrontBottom (void) const
	Gets the center of the corners 2, 3.
const Vector3	getCenterFrontLeft (void) const
	Gets the center of the corners 3, 7.
const Vector3	getCenterFrontRight (void) const
	Gets the center of the corners 2, 6.
const Vector3	getCenterFrontTop (void) const
	Gets the center of the corners 6, 7.
const Vector3	getCenterLeft (void) const
	Gets the center of the corners 0, 3, 4, 6.
const Vector3	getCenterLeftBottom (void) const
	Gets the center of the corners 0, 3.
const Vector3	getCenterLeftTop (void) const
	Gets the center of the corners 4, 7.
const Vector3	getCenterRight (void) const
	Gets the center of the corners 1, 2, 5, 6.
const Vector3	getCenterRightBottom (void) const
	Gets the center of the corners 1, 2.
const Vector3	getCenterRightTop (void) const
	Gets the center of the corners 5, 6.
const Vector3	getCenterTop (void) const
	Gets the center of the corners 4, 5, 6, 7.
const Vector4	getCenterValue (void) const
	Gets the center value.
const OctreeNode *	getChild (const size_t i) const
	Gets an octree child.
const Vector3	getCorner1 (void) const
	Gets the coordinate of corner 1.
const Vector3	getCorner2 (void) const
	Gets the coordinate of corner 2.
const Vector3	getCorner3 (void) const
	Gets the coordinate of corner 3.
const Vector3	getCorner4 (void) const
	Gets the coordinate of corner 4.
const Vector3	getCorner5 (void) const
	Gets the coordinate of corner 5.
const Vector3	getCorner7 (void) const
	Gets the coordinate of corner 7.
const Vector3 &	getFrom (void) const
	Gets the back lower left corner of the cell.
Entity *	getOctreeGrid (SceneManager *sceneManager)
	Getter for the octree debug visualization of the octree starting with this node.
const Vector3 &	getTo (void) const
	Gets the front upper right corner of the cell.
bool	isBorderBack (const OctreeNode &root) const
	Gets whether this cell is at the back of the given root cell.
bool	isBorderBottom (const OctreeNode &root) const
	Gets whether this cell is at the bottom of the given root cell.
bool	isBorderFront (const OctreeNode &root) const
	Gets whether this cell is at the front of the given root cell.
bool	isBorderLeft (const OctreeNode &root) const
	Gets whether this cell is at the left of the given root cell.
bool	isBorderRight (const OctreeNode &root) const
	Gets whether this cell is at the right of the given root cell.
bool	isBorderTop (const OctreeNode &root) const
	Gets whether this cell is at the top of the given root cell.
bool	isIsoSurfaceNear (void) const
	Gets whether the isosurface is somewhat near to this node.
bool	isSubdivided (void) const
	Gets whether this cell has any children.
void	operator delete (void *ptr)
void	operator delete (void ptr, void )
void	operator delete (void ptr, const char , int, const char *)
void	operator delete[] (void *ptr)
void	operator delete[] (void ptr, const char , int, const char *)
void *	operator new (size_t sz, const char file, int line, const char func)
	operator new, with debug line info
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *ptr)
	placement operator new
void *	operator new[] (size_t sz, const char file, int line, const char func)
	array operator new, with debug line info
void *	operator new[] (size_t sz)
void	setCenterValue (Vector4 value)
	Raw setter for the center value.
void	setFrom (Vector3 from)
	Setter for the from-part of this cell.
void	setTo (Vector3 to)
	Setter for the to-part of this cell.
void	split (const OctreeNodeSplitPolicy splitPolicy, const Source src, const Real geometricError)
	Splits this cell if the split policy says so.
Static Public Member Functions
static void	getChildrenDimensions (const Vector3 &from, const Vector3 &to, Vector3 &center, Vector3 &width, Vector3 &height, Vector3 &depth)
	Gets the center and width / height / depth vector of the children of a node.
Static Public Attributes
static const size_t	OCTREE_CHILDREN_COUNT
	Even in an OCtree, the amount of children should not be hardcoded.
Protected Member Functions
void	buildOctreeGridLines (ManualObject *manual) const
	Method to actually add the lines of the octree cells to the debug visualization.
Protected Attributes
Vector4	mCenterValue
	Density and gradient of the center.
OctreeNode **	mChildren
	The children of this node.
Vector3	mFrom
	The back lower left corner of the cell.
Entity *	mOctreeGrid
	Holds the debug visualization of the octree. Just set in the root.
Vector3	mTo
	The front upper right corner of the cell.
Static Protected Attributes
static uint32	mGridPositionCount
	To count some indices while creating the debug view and recursing through the instances.
static size_t	mNodeI
	To give the debug manual object an unique name.
static const Real	NEAR_FACTOR
	Factor to the diagonal of the cell to decide whether this cell is near the isosurface or not.

Detailed Description

A node in the volume octree.

Definition at line 45 of file OgreVolumeOctreeNode.h.

Constructor & Destructor Documentation

Ogre::Volume::OctreeNode::OctreeNode	(	const Vector3 &	from = `Vector3::ZERO`,
		const Vector3 &	to = `Vector3::ZERO`
	)

Constructor.

Parameters:

from	The back lower left corner of the cell.
to	The front upper right corner of the cell.

virtual Ogre::Volume::OctreeNode::~OctreeNode ( void ) [virtual]

Destructor.

Member Function Documentation

void Ogre::Volume::OctreeNode::buildOctreeGridLines ( ManualObject * manual ) const [protected]

Method to actually add the lines of the octree cells to the debug visualization.

Parameters:

manual The manual object to add the lines to if this is a leaf in the octree.

virtual OctreeNode* Ogre::Volume::OctreeNode::createInstance	(	const Vector3 &	from,
		const Vector3 &	to
	)		`[virtual]`

Factory method to create octree nodes.

Parameters:

from	The back lower left corner of the cell.
to	The front upper right corner of the cell.

Returns:: The created entity. Make sure to destroy it when you don't need it anymore.

const Vector3 Ogre::Volume::OctreeNode::getCenter ( void ) const

Gets the center of this cell.

Returns:: The center.

Definition at line 200 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBack ( void ) const

Gets the center of the corners 0, 1, 4, 5.

Returns:: The center.

Definition at line 293 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBackBottom ( void ) const

Gets the center of the corners 0, 1.

Returns:: The center.

Definition at line 356 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBackLeft ( void ) const

Gets the center of the corners 0, 4.

Returns:: The center.

Definition at line 419 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBackRight ( void ) const

Gets the center of the corners 1, 5.

Returns:: The center.

Definition at line 437 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBackTop ( void ) const

Gets the center of the corners 4, 5.

Returns:: The center.

Definition at line 347 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterBottom ( void ) const

Gets the center of the corners 0, 1, 2, 3.

Returns:: The center.

Definition at line 338 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterFront ( void ) const

Gets the center of the corners 2, 3, 6, 7.

Returns:: The center.

Definition at line 302 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterFrontBottom ( void ) const

Gets the center of the corners 2, 3.

Returns:: The center.

Definition at line 374 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterFrontLeft ( void ) const

Gets the center of the corners 3, 7.

Returns:: The center.

Definition at line 428 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterFrontRight ( void ) const

Gets the center of the corners 2, 6.

Returns:: The center.

Definition at line 446 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterFrontTop ( void ) const

Gets the center of the corners 6, 7.

Returns:: The center.

Definition at line 365 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterLeft ( void ) const

Gets the center of the corners 0, 3, 4, 6.

Returns:: The center.

Definition at line 311 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterLeftBottom ( void ) const

Gets the center of the corners 0, 3.

Returns:: The center.

Definition at line 392 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterLeftTop ( void ) const

Gets the center of the corners 4, 7.

Returns:: The center.

Definition at line 383 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterRight ( void ) const

Gets the center of the corners 1, 2, 5, 6.

Returns:: The center.

Definition at line 320 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterRightBottom ( void ) const

Gets the center of the corners 1, 2.

Returns:: The center.

Definition at line 410 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterRightTop ( void ) const

Gets the center of the corners 5, 6.

Returns:: The center.

Definition at line 401 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCenterTop ( void ) const

Gets the center of the corners 4, 5, 6, 7.

Returns:: The center.

Definition at line 329 of file OgreVolumeOctreeNode.h.

const Vector4 Ogre::Volume::OctreeNode::getCenterValue ( void ) const

Gets the center value.

Returns:: The center value, one Vector4 consisting of gradient (x, y, z) and density (w).

Definition at line 518 of file OgreVolumeOctreeNode.h.

const OctreeNode* Ogre::Volume::OctreeNode::getChild ( const size_t i ) const

Gets an octree child.

Enumeration: 4 5 7 6 0 1 3 2

Parameters:

i	The child index.

Returns:: The child.

Definition at line 191 of file OgreVolumeOctreeNode.h.

static void Ogre::Volume::OctreeNode::getChildrenDimensions	(	const Vector3 &	from,
		const Vector3 &	to,
		Vector3 &	center,
		Vector3 &	width,
		Vector3 &	height,
		Vector3 &	depth
	)		`[static]`

Gets the center and width / height / depth vector of the children of a node.

Parameters:

from	The back lower left corner of the cell.
to	The front upper right corner of the cell.
center	Out parameter of the calculated center.
width	Out parameter of the width vector (width in x, rest zero).
height	Out parameter of the height vector (height in y, rest zero).
depth	Out parameter of the depth vector (depth in z, rest zero).

Definition at line 98 of file OgreVolumeOctreeNode.h.

References Ogre::Vector3::x, Ogre::Vector3::y, and Ogre::Vector3::z.

const Vector3 Ogre::Volume::OctreeNode::getCorner1 ( void ) const

Gets the coordinate of corner 1.

Returns:: The corner.

Definition at line 455 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCorner2 ( void ) const

Gets the coordinate of corner 2.

Returns:: The corner.

Definition at line 464 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCorner3 ( void ) const

Gets the coordinate of corner 3.

Returns:: The corner.

Definition at line 473 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCorner4 ( void ) const

Gets the coordinate of corner 4.

Returns:: The corner.

Definition at line 482 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCorner5 ( void ) const

Gets the coordinate of corner 5.

Returns:: The corner.

Definition at line 491 of file OgreVolumeOctreeNode.h.

const Vector3 Ogre::Volume::OctreeNode::getCorner7 ( void ) const

Gets the coordinate of corner 7.

Returns:: The corner.

Definition at line 500 of file OgreVolumeOctreeNode.h.

const Vector3& Ogre::Volume::OctreeNode::getFrom ( void ) const

Gets the back lower left corner of the cell.

Returns:: The back lower left corner of the cell.

Definition at line 209 of file OgreVolumeOctreeNode.h.

Entity* Ogre::Volume::OctreeNode::getOctreeGrid ( SceneManager * sceneManager )

Getter for the octree debug visualization of the octree starting with this node.

Parameters:

sceneManager The scenemanager creating the actual entity.

Returns:: The lazily created debug visualization.

const Vector3& Ogre::Volume::OctreeNode::getTo ( void ) const

Gets the front upper right corner of the cell.

Returns:: The front upper right corner of the cell.

Definition at line 218 of file OgreVolumeOctreeNode.h.

bool Ogre::Volume::OctreeNode::isBorderBack ( const OctreeNode & root ) const

Gets whether this cell is at the back of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 273 of file OgreVolumeOctreeNode.h.

References mFrom, and Ogre::Vector3::z.

bool Ogre::Volume::OctreeNode::isBorderBottom ( const OctreeNode & root ) const

Gets whether this cell is at the bottom of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 251 of file OgreVolumeOctreeNode.h.

References mFrom, and Ogre::Vector3::y.

bool Ogre::Volume::OctreeNode::isBorderFront ( const OctreeNode & root ) const

Gets whether this cell is at the front of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 284 of file OgreVolumeOctreeNode.h.

References mTo, and Ogre::Vector3::z.

bool Ogre::Volume::OctreeNode::isBorderLeft ( const OctreeNode & root ) const

Gets whether this cell is at the left of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 229 of file OgreVolumeOctreeNode.h.

References mFrom, and Ogre::Vector3::x.

bool Ogre::Volume::OctreeNode::isBorderRight ( const OctreeNode & root ) const

Gets whether this cell is at the right of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 240 of file OgreVolumeOctreeNode.h.

References mTo, and Ogre::Vector3::x.

bool Ogre::Volume::OctreeNode::isBorderTop ( const OctreeNode & root ) const

Gets whether this cell is at the top of the given root cell.

Parameters:

root	The octree root node to test against.

Returns:: true if so.

Definition at line 262 of file OgreVolumeOctreeNode.h.

References mTo, and Ogre::Vector3::y.

bool Ogre::Volume::OctreeNode::isIsoSurfaceNear ( void ) const

Gets whether the isosurface is somewhat near to this node.

Returns:: true if somewhat near.

Definition at line 527 of file OgreVolumeOctreeNode.h.

References Ogre::Math::Abs().

bool Ogre::Volume::OctreeNode::isSubdivided ( void ) const

Gets whether this cell has any children.

Returns:: True if so.

Definition at line 176 of file OgreVolumeOctreeNode.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete ( void * ptr ) [inherited]

Definition at line 96 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		void *
	)		`[inherited]`

Definition at line 102 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)		`[inherited]`

Definition at line 108 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[] ( void * ptr ) [inherited]

Definition at line 113 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void Ogre::AllocatedObject< Alloc >::operator delete[]	(	void *	ptr,
		const char *	,
		int	,
		const char *
	)		`[inherited]`

Definition at line 119 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)		`[inherited]`

operator new, with debug line info

Definition at line 68 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new ( size_t sz ) [inherited]

Definition at line 73 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new	(	size_t	sz,
		void *	ptr
	)		`[inherited]`

placement operator new

Definition at line 79 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[]	(	size_t	sz,
		const char *	file,
		int	line,
		const char *	func
	)		`[inherited]`

array operator new, with debug line info

Definition at line 86 of file OgreMemoryAllocatedObject.h.

template<class Alloc >

void* Ogre::AllocatedObject< Alloc >::operator new[] ( size_t sz ) [inherited]

Definition at line 91 of file OgreMemoryAllocatedObject.h.

void Ogre::Volume::OctreeNode::setCenterValue ( Vector4 value )

Raw setter for the center value.

Parameters:

value The density value.

Definition at line 509 of file OgreVolumeOctreeNode.h.

void Ogre::Volume::OctreeNode::setFrom ( Vector3 from )

Setter for the from-part of this cell.

Parameters:

from	The back lower left corner of the cell.

Definition at line 158 of file OgreVolumeOctreeNode.h.

void Ogre::Volume::OctreeNode::setTo ( Vector3 to )

Setter for the to-part of this cell.

Parameters:

to	The front upper right corner of the cell.

Definition at line 167 of file OgreVolumeOctreeNode.h.

void Ogre::Volume::OctreeNode::split	(	const OctreeNodeSplitPolicy *	splitPolicy,
		const Source *	src,
		const Real	geometricError
	)

Splits this cell if the split policy says so.

Parameters:

splitPolicy	Defines the policy deciding whether to split this node or not.
src	The volume source.
geometricError	The accepted geometric error.

Member Data Documentation

Vector4 Ogre::Volume::OctreeNode::mCenterValue [protected]

Density and gradient of the center.

Definition at line 71 of file OgreVolumeOctreeNode.h.

OctreeNode** Ogre::Volume::OctreeNode::mChildren [protected]

The children of this node.

Definition at line 65 of file OgreVolumeOctreeNode.h.

Vector3 Ogre::Volume::OctreeNode::mFrom [protected]

The back lower left corner of the cell.

Definition at line 59 of file OgreVolumeOctreeNode.h.

Referenced by isBorderBack(), isBorderBottom(), and isBorderLeft().

uint32 Ogre::Volume::OctreeNode::mGridPositionCount [static, protected]

To count some indices while creating the debug view and recursing through the instances.

Definition at line 53 of file OgreVolumeOctreeNode.h.

size_t Ogre::Volume::OctreeNode::mNodeI [static, protected]

To give the debug manual object an unique name.

Definition at line 56 of file OgreVolumeOctreeNode.h.

Entity* Ogre::Volume::OctreeNode::mOctreeGrid [protected]

Holds the debug visualization of the octree. Just set in the root.

Definition at line 68 of file OgreVolumeOctreeNode.h.

Vector3 Ogre::Volume::OctreeNode::mTo [protected]

The front upper right corner of the cell.

Definition at line 62 of file OgreVolumeOctreeNode.h.

Referenced by isBorderFront(), isBorderRight(), and isBorderTop().

const Real Ogre::Volume::OctreeNode::NEAR_FACTOR [static, protected]

Factor to the diagonal of the cell to decide whether this cell is near the isosurface or not.

Definition at line 50 of file OgreVolumeOctreeNode.h.

const size_t Ogre::Volume::OctreeNode::OCTREE_CHILDREN_COUNT [static]

Even in an OCtree, the amount of children should not be hardcoded.

Definition at line 82 of file OgreVolumeOctreeNode.h.

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

OgreVolumeOctreeNode.h

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Static Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation