vtDynTerrainGeom Class Reference

Inheritance diagram for vtDynTerrainGeom:

Public Member Functions
DTErr	BasicInit (const vtElevationGrid *pGrid)
virtual void	SetPolygonTarget (int iPolygonCount)
int	GetPolygonTarget () const
int	NumDrawnTriangles () const
Public Member Functions inherited from vtDynGeom
int	IsVisible (const FSphere &sphere) const
int	IsVisible (const FPoint3 &point0, const FPoint3 &point1, const FPoint3 &point2, const float fTolerance=0.0f) const
int	IsVisible (const FPoint3 &point, float radius) const
bool	IsVisible (const FPoint3 &point) const
Public Member Functions inherited from vtGeode
void	AddMesh (vtMesh *pMesh, int iMatIdx)
void	RemoveMesh (vtMesh *pMesh)
void	RemoveAllMeshes ()
void	AddTextMesh (vtTextMesh *pMesh, int iMatIdx, bool bOutline=true)
uint	NumMeshes () const
vtMesh *	GetMesh (int i) const
vtTextMesh *	GetTextMesh (int i) const
Public Member Functions inherited from NodeExtension
void	SetEnabled (bool bOn)
bool	GetEnabled () const
void	SetCastShadow (bool b)
	Set this node to cast a shadow, if it is under a vtShadow node. Default is false.
bool	GetCastShadow ()
	Get whether this node casts a shadow.
void	GetBoundSphere (FSphere &sphere, bool bGlobal=false)
	Get the Bounding Sphere of the node.

Detailed Description

This class provides a framework for implementing any kind of dynamic geometry for a heightfield terrain grid. It is the parent class which contains common fuctionality used by each of the terrain CLOD implementations.

Member Function Documentation

DTErr vtDynTerrainGeom::BasicInit

(

const vtElevationGrid *

pGrid

)

Sets up the vtDynTerrainGeom object. The units, extents, height range, grid dimensions and other properties are copied from the supplied elevation grid.

This is generally called from the Init() method of a subclass.

int vtDynTerrainGeom::GetPolygonTarget

(

)

const

Get the polygon target, which is the number of polygons (generally triangles) which the CLOD algorithm will try to maintain.

int vtDynTerrainGeom::NumDrawnTriangles

(

)

const

Return the number of triangles that were rendered by this dynamic terrain last frame.

void vtDynTerrainGeom::SetPolygonTarget ( int  iCount )

virtual

Set the polygon target, which is the number of polygons (generally triangles) which the CLOD algorithm will try to maintain.

Reimplemented in SRTerrain.