class SG_EXPORT osg::LOD: public Group

LOD - Level Of Detail group node which allows switching between children depending on distance from eye point.

Inheritance:

Public Methods

LOD()

virtual Object* clone() const

virtual bool isSameKindAs(Object* obj)

virtual const char* className() const

virtual void accept(NodeVisitor& nv)

virtual void traverse(NodeVisitor& nv)

void setRange(unsigned int index, float range)

Sets the value of range list element index to range which is a floating point distance specified in world coordinates.

float getRange(unsigned int index)

pfLOD::getRange returns the range element index

int getNumRanges()

returns the number of ranges currently set

void setCenter(const Vec3 &center)

Sets the object-space point which defines the center of the osg::LOD.

const Vec3& getCenter()

return the LOD center point.

int evaluate(const Vec3& eye_local, float bias=1.0f)

return the child to traverse.

Protected Fields

RangeList _rangeList

RangeList _rangeList2

Vec3 _center

Protected Methods

virtual ~LOD()

virtual bool readLocalData(Input& fr)

virtual bool writeLocalData(Output& fw)

Protected

typedef std::vector<float> RangeList

Inherited from Group:

Public Methods

virtual bool addChild( Node *child )

virtual bool removeChild( Node *child )

virtual bool replaceChild( Node *origChild, Node* newChild )

int getNumChildren( void )

Node* getChild( int i )

bool containsNode( Node* node )

ChildList::iterator findNode( Node* node )

Public

typedef std::vector<ref_ptr<Node> > ChildList

Protected Fields

ChildList _children

Protected Methods

bool computeBound( void )

Inherited from Node:

Public Methods

Node* cloneNode() const

virtual void ascend(NodeVisitor& nv)

void setName( const std::string& name )

void setName( const char* name )

const std::string& getName( void )

const ParentList& getParents() const

Group* getParent(int i) const

int getNumParents() const

void setUserData(void* data, MemoryAdapter* ma=0L)

void* getUserData() const

MemoryAdapter* getMemoryAdapter() const

void setNodeMask(NodeMask nm)

NodeMask getNodeMask()

const DescriptionList& getDescriptions() const

DescriptionList& getDescriptions()

const std::string& getDescription(int i) const

std::string& getDescription(int i)

int getNumDescriptions() const

void addDescription(const std::string& desc)

const BoundingSphere& getBound()

void dirtyBound()

Public

typedef std::vector<Group*> ParentList

typedef unsigned int NodeMask

typedef std::vector<std::string> DescriptionList

Protected Fields

BoundingSphere _bsphere

bool _bsphere_computed

std::string _name

ParentList _parents

friend Group

void* _userData

ref_ptr<MemoryAdapter> _memoryAdapter

NodeMask _nodeMask

DescriptionList _descriptions

Inherited from Object:

Public Methods

virtual Object* readClone(Input& fr)

virtual bool write(Output& fw)

Inherited from Referenced:

Public Methods

Referenced& operator = (Referenced&)

void ref()

void unref()

int referenceCount()

Protected Fields

int _refCount

LOD()

virtual Object* clone() const

virtual bool isSameKindAs(Object* obj)

virtual const char* className() const

virtual void accept(NodeVisitor& nv)

virtual void traverse(NodeVisitor& nv)

void setRange(unsigned int index, float range)

Sets the value of range list element index to range which is a floating point distance specified in world coordinates. Range list automatically expands to accomodate values beyond the current getNumRanges().

float getRange(unsigned int index)

pfLOD::getRange returns the range element index

int getNumRanges()

returns the number of ranges currently set

void setCenter(const Vec3 &center)

Sets the object-space point which defines the center of the osg::LOD. center is affected by any transforms in the hierarchy above the osg::LOD.

const Vec3& getCenter()

return the LOD center point.

int evaluate(const Vec3& eye_local, float bias=1.0f)

return the child to traverse. Selected by the distance between the eye point in local coordinates and the LOD center, mutliplied by the bias.

virtual ~LOD()

virtual bool readLocalData(Input& fr)

virtual bool writeLocalData(Output& fw)

typedef std::vector<float> RangeList

RangeList _rangeList

RangeList _rangeList2

Vec3 _center

This class has no child classes.

Alphabetic index HTML hierarchy of classes or Java