#include <PagedLodGrid.h>

Inheritance diagram for vtPagedStructureLodGrid:

Public Member Functions
void	Setup (const FPoint3 &origin, const FPoint3 &size, int iDimension, float fLODDistance, vtHeightField3d *pHF=NULL)

void	Cleanup ()

void	SetDistance (float fLODDistance)

bool	AppendToGrid (vtStructureArray3d *sa, int iIndex)

void	RemoveFromGrid (vtStructureArray3d *sa, int iIndex)

vtPagedStructureLOD *	GetPagedCell (int a, int b)

void	DoPaging (const FPoint3 &CamPos, int iMaxStructures, float fDeleteDistance)

bool	AddToQueue (vtPagedStructureLOD pLOD, vtStructureArray3d pArray, int iIndex)

bool	RemoveFromQueue (vtStructureArray3d *pArray, int iIndex)

uint	GetQueueSize ()

void	SortQueue ()

void	ClearQueue (vtStructureArray3d *pArray)

void	RefreshPaging (vtStructureArray3d *pArray)

void	EnableLoading (bool b)

int	GetLoadCount ()

void	ResetLoadCount ()

int	GetTotalConstructed ()

vtPagedStructureLOD *	FindGroup (vtStructure *str)

void	ConstructByIndex (vtPagedStructureLOD pLOD, vtStructureArray3d pArray, uint iStructIndex)

Public Member Functions inherited from vtLodGrid
bool	AddToGrid (osg::Node *pNode)

void	RemoveFromGrid (osg::Node *pNode)

float	GetDistance ()

int	GetDimension ()

FPoint3	GetCellSize ()

Public Attributes
bool	m_LoadingEnabled

Protected Member Functions
void	CullFarawayStructures (const FPoint3 &CamPos, int iMaxStructures, float fDistance)

void	DeconstructCell (vtPagedStructureLOD *pLOD)

void	RemoveCellFromQueue (vtPagedStructureLOD *pLOD)

osg::Group *	FindCellParent (const FPoint3 &point)

vtPagedStructureLOD *	FindPagedCellParent (const FPoint3 &point)

void	AllocateCell (int a, int b)

osg::Group *	GetCell (int a, int b)

Protected Member Functions inherited from vtLodGrid
void	DetermineCell (const FPoint3 &pos, int &a, int &b)

Protected Attributes
vtPagedStructureLOD **	m_pCells

int	m_iLoadCount

int	m_iTotalConstructed

QueueVector	m_Queue

Protected Attributes inherited from vtLodGrid
FPoint3	m_origin

FPoint3	m_size

FPoint3	m_step

int	m_dim

float	m_fLODDistance

vtHeightField3d *	m_pHeightField

Detailed Description

vtPagedStructureLodGrid provides a more complex implementation of vtLodGrid.

Like vtSimpleLodGrid, it consists of a 2D grid of LOD nodes, each covering a rectangular cell, which causes that cell's children to only be shown when within a given distance. Additionally, the cells can contain structures (vtStructure) which are not constructed until the cell is visible.

Member Function Documentation

vtPagedStructureLOD * vtPagedStructureLodGrid::FindGroup ( vtStructure * str)

For a given vtStructure, find the lod group parent for it, using the structure's earth extents.

void vtPagedStructureLodGrid::RefreshPaging ( vtStructureArray3d * pArray)

In case the paging grid did not load some structure before (because the structures were hidden), tell it to check again. You should call this when a structure layer becomes enabled (un-hidden).

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

D:/job/3kb/gelistirme/umasoft/vtp-src/VTP/TerrainSDK/vtlib/core/PagedLodGrid.h
D:/job/3kb/gelistirme/umasoft/vtp-src/VTP/TerrainSDK/vtlib/core/PagedLodGrid.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation