ccPointCloudLOD Class Reference

L.O.D. (Level of Detail) structure. More...

#include <ccPointCloudLOD.h>

Collaboration diagram for ccPointCloudLOD:

Classes
struct	Level
struct	Node
	Octree 'tree' node. More...
struct	RenderParams
	Parameters of the current render state. More...

Public Types
enum	State { NOT_INITIALIZED , UNDER_CONSTRUCTION , INITIALIZED , BROKEN }
	Structure initialization state.

Public Member Functions
	ccPointCloudLOD ()
	Default constructor.
virtual	~ccPointCloudLOD ()
	Destructor.
bool	init (ccPointCloud *cloud)
	Initializes the construction process (asynchronous)
void	lock ()
	Locks the structure.
void	unlock ()
	Unlocks the structure.
State	getState ()
	Returns the current state.
void	clear ()
	Clears the structure.
const ccOctree::Shared &	octree () const
	Returns the associated octree.
bool	isNull ()
	Returns whether the structure is null (i.e. not under construction or initialized) or not.
bool	isInitialized ()
	Returns whether the structure is initialized or not.
bool	isUnderConstruction ()
	Returns whether the structure is initialized or not.
bool	isBroken ()
	Returns whether the structure is broken or not.
unsigned char	maxLevel ()
	Returns the maximum accessible level.
Node &	node (int32_t index, unsigned char level)
const Node &	node (int32_t index, unsigned char level) const
Node &	root ()
const Node &	root () const
uint32_t	flagVisibility (const Frustum &frustum, ccClipPlaneSet *clipPlanes=nullptr)
	Test all cells visibility with a given frustum. More...
LODIndexSet &	getIndexMap (unsigned char level, unsigned &maxCount, unsigned &remainingPointsAtThisLevel)
	Builds an index map with the remaining visible points.
const LODIndexSet &	getLasIndexMap () const
	Returns the last index map.
bool	allDisplayed () const
	Returns whether all points have been displayed or not.
size_t	memory () const
	Returns the memory used by the structure (in bytes)

Static Public Attributes
static const unsigned char	UNDEFINED = 255
	Undefined visibility flag.

Protected Member Functions
bool	initInternal (ccOctree::Shared octree)
	Reserves memory.
void	setState (State state)
	Sets the current state.
void	clearExtended (bool autoStopThread, State newState)
	Clears the structure (with more options)
void	clearData ()
	Clears the internal (nodes) data.
int32_t	newCell (unsigned char level)
	Reserves a new cell at a given level. More...
void	shrink_to_fit ()
	Shrinks the internal data to its minimum size.
void	resetVisibility ()
	Updates the max radius per level FOR ALL CELLS. More...
uint32_t	addNPointsToIndexMap (Node &node, uint32_t count)
	Adds a given number of points to the active index map (should be dispatched among the children cells)

Protected Attributes
friend	ccPointCloudLODThread
std::vector< Level >	m_levels
	Per-level cells data.
RenderParams	m_currentState
	Current rendering state.
LODIndexSet	m_indexMap
	Index map.
LODIndexSet	m_lastIndexMap
	Last index map (pointer on)
ccOctree::Shared	m_octree
	Associated octree.
ccPointCloudLODThread *	m_thread
	Computing thread.
QMutex	m_mutex
	For concurrent access.
State	m_state
	State.

Detailed Description

L.O.D. (Level of Detail) structure.

Member Function Documentation

flagVisibility()

uint32_t ccPointCloudLOD::flagVisibility	(	const Frustum &	frustum,
		ccClipPlaneSet *	clipPlanes = nullptr
	)

Test all cells visibility with a given frustum.

Automatically calls resetVisibility

newCell()

int32_t ccPointCloudLOD::newCell ( unsigned char  level )

protected

Reserves a new cell at a given level.

Returns

the new cell index in the array corresponding to this level (see m_levels)

resetVisibility()

void ccPointCloudLOD::resetVisibility ( )

protected

Updates the max radius per level FOR ALL CELLS.

Resets the internal visibility flags All nodes are flagged as 'INSIDE' (= visible) and their 'visibleCount' attribute is set to 0.

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

• ccPointCloudLOD.h
• ccPointCloudLOD.cpp