osgTerrain::TerrainNode Class Reference

Inheritance diagram for osgTerrain::TerrainNode:

List of all members.

Public Types
enum	Filter { NEAREST, LINEAR }
Public Member Functions
	TerrainNode ()
	TerrainNode (const TerrainNode &, const osg::CopyOp &copyop=osg::CopyOp::SHALLOW_COPY)
	META_Node (osgTerrain, TerrainNode)
virtual void	traverse (osg::NodeVisitor &nv)
void	init ()
void	setTerrainTechnique (osgTerrain::TerrainTechnique *TerrainTechnique)
TerrainTechnique *	getTerrainTechnique ()
const TerrainTechnique *	getTerrainTechnique () const
void	setLocator (Locator *locator)
Locator *	getLocator ()
const Locator *	getLocator () const
void	setElevationLayer (Layer *layer)
Layer *	getElevationLayer ()
const Layer *	getElevationLayer () const
void	setColorLayer (unsigned int i, osgTerrain::Layer *layer)
Layer *	getColorLayer (unsigned int i)
const Layer *	getColorLayer (unsigned int i) const
void	setColorTransferFunction (unsigned int i, osg::TransferFunction *tf)
osg::TransferFunction *	getColorTransferFunction (unsigned int i)
const osg::TransferFunction *	getColorTransferFunction (unsigned int i) const
void	setColorFilter (unsigned int i, Filter filter)
Filter	getColorFilter (unsigned int i) const
unsigned int	getNumColorLayers () const
void	setRequiresNormals (bool flag)
bool	getRequiresNormals () const
void	setTreatBoundariesToValidDataAsDefaultValue (bool flag)
bool	getTreatBoundariesToValidDataAsDefaultValue () const
virtual osg::BoundingSphere	computeBound () const
Protected Types
typedef std::vector< LayerData >	Layers
Protected Member Functions
virtual	~TerrainNode ()
Protected Attributes
osg::ref_ptr< TerrainTechnique >	_terrainTechnique
osg::ref_ptr< Locator >	_locator
osg::ref_ptr< Layer >	_elevationLayer
Layers	_colorLayers
bool	_requiresNormals
bool	_treatBoundariesToValidDataAsDefaultValue
Classes
struct	LayerData

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Detailed Description

Terrain provides a framework for loosly coupling height field data with height rendering algorithms. This allows TerrainTechnique's to be pluged in at runtime.

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Member Typedef Documentation

typedef std::vector<LayerData> osgTerrain::TerrainNode::Layers [protected]

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Member Enumeration Documentation

enum osgTerrain::TerrainNode::Filter

Enumerator:

NEAREST
LINEAR

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Constructor & Destructor Documentation

osgTerrain::TerrainNode::TerrainNode

(

)

osgTerrain::TerrainNode::TerrainNode	(	const TerrainNode &	,
		const osg::CopyOp &	copyop = osg::CopyOp::SHALLOW_COPY
	)

Copy constructor using CopyOp to manage deep vs shallow copy.

virtual osgTerrain::TerrainNode::~TerrainNode

(

)

[protected, virtual]

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Member Function Documentation

osgTerrain::TerrainNode::META_Node	(	osgTerrain	,
		TerrainNode
	)

virtual void osgTerrain::TerrainNode::traverse

(

osg::NodeVisitor &

nv

)

[virtual]

Traverse downwards : calls children's accept method with NodeVisitor.

Reimplemented from osg::Group.

void osgTerrain::TerrainNode::init

(

)

Call init on any attached TerrainTechnique.

void osgTerrain::TerrainNode::setTerrainTechnique

(

osgTerrain::TerrainTechnique *

TerrainTechnique

)

Set the TerrainTechnique

TerrainTechnique* osgTerrain::TerrainNode::getTerrainTechnique

(

)

[inline]

Get the TerrainTechnique

const TerrainTechnique* osgTerrain::TerrainNode::getTerrainTechnique

(

)

const [inline]

Get the const TerrainTechnique

void osgTerrain::TerrainNode::setLocator

(

Locator *

locator

)

[inline]

Set the coordinate frame locator of the terrain node. The locator takes non-dimensional s,t coordinates into the X,Y,Z world coords and back.

Locator* osgTerrain::TerrainNode::getLocator

(

)

[inline]

Get the coordinate frame locator of the terrain node.

const Locator* osgTerrain::TerrainNode::getLocator

(

)

const [inline]

Get the coordinate frame locator of the terrain node.

void osgTerrain::TerrainNode::setElevationLayer

(

Layer *

layer

)

Set the layer to use to define the elevations of the terrain.

Layer* osgTerrain::TerrainNode::getElevationLayer

(

)

[inline]

Get the layer to use to define the elevations of the terrain.

const Layer* osgTerrain::TerrainNode::getElevationLayer

(

)

const [inline]

Get the const layer to use to define the elevations of the terrain.

void osgTerrain::TerrainNode::setColorLayer	(	unsigned int	i,
		osgTerrain::Layer *	layer
	)

Set a color layer with specified layer number.

Layer* osgTerrain::TerrainNode::getColorLayer

(

unsigned int

i

)

[inline]

Get color layer with specified layer number.

const Layer* osgTerrain::TerrainNode::getColorLayer

(

unsigned int

i

)

const [inline]

Set const color layer with specified layer number.

void osgTerrain::TerrainNode::setColorTransferFunction	(	unsigned int	i,
		osg::TransferFunction *	tf
	)

Set a color transfer function with specified layer number.

osg::TransferFunction* osgTerrain::TerrainNode::getColorTransferFunction

(

unsigned int

i

)

[inline]

Get color transfer function with specified layer number.

const osg::TransferFunction* osgTerrain::TerrainNode::getColorTransferFunction

(

unsigned int

i

)

const [inline]

Get const color transfer function with specified layer number.

void osgTerrain::TerrainNode::setColorFilter	(	unsigned int	i,
		Filter	filter
	)

Set a color filter with specified layer number.

Filter osgTerrain::TerrainNode::getColorFilter

(

unsigned int

i

)

const [inline]

Set const color filter with specified layer number.

unsigned int osgTerrain::TerrainNode::getNumColorLayers

(

)

const [inline]

Get the number of colour layers.

void osgTerrain::TerrainNode::setRequiresNormals

(

bool

flag

)

[inline]

Set hint to whether the TerrainTechnique should create per vertex normals for lighting purposes.

bool osgTerrain::TerrainNode::getRequiresNormals

(

)

const [inline]

Get whether the TerrainTechnique should create per vertex normals for lighting purposes.

void osgTerrain::TerrainNode::setTreatBoundariesToValidDataAsDefaultValue

(

bool

flag

)

[inline]

Set the hint to whether the TerrainTechnique should treat the invalid Layer entries that at are neigbours to valid entries with the default value.

bool osgTerrain::TerrainNode::getTreatBoundariesToValidDataAsDefaultValue

(

)

const [inline]

Get whether the TeatBoundariesToValidDataAsDefaultValue hint.

virtual osg::BoundingSphere osgTerrain::TerrainNode::computeBound

(

)

const [virtual]

Compute the bounding volume of the terrain by computing the union of the bounding volumes of all layers.

Reimplemented from osg::Group.

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Member Data Documentation

osg::ref_ptr<TerrainTechnique> osgTerrain::TerrainNode::_terrainTechnique [protected]

osg::ref_ptr<Locator> osgTerrain::TerrainNode::_locator [protected]

osg::ref_ptr<Layer> osgTerrain::TerrainNode::_elevationLayer [protected]

Layers osgTerrain::TerrainNode::_colorLayers [protected]

bool osgTerrain::TerrainNode::_requiresNormals [protected]

bool osgTerrain::TerrainNode::_treatBoundariesToValidDataAsDefaultValue [protected]

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

• TerrainNode

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