DtPageInVisitor Class Reference

OSG Visitor class which pages the highest level of detail of paged LOD nodes in. More...

Inheritance diagram for DtPageInVisitor:

List of all members.

Public Types
typedef std::list< std::pair < osg::Node *, int > >	DtNodeChildList
Public Member Functions
	DtPageInVisitor ()
virtual void	apply (osg::Group &node)
virtual void	apply (osg::Geode &node)
virtual void	apply (osg::LOD &node)
virtual void	apply (osg::PagedLOD &node)
virtual void	apply (osg::CoordinateSystemNode &node)
virtual unsigned int	numNodesRequested () const
virtual const DtNodeChildList &	nodesRequested () const
virtual bool	allDataPagedIn () const
	May be called after applying this visitor.
virtual int	pagedLodCount () const
Protected Member Functions
virtual bool	requiresPageIn (osg::Node &node)
Protected Attributes
DtNodeChildList	myPagedNodesRequested
	This holds pointers to all the paged LOD nodes that have requests for paging in initiated by this visitor.
bool	myAllDataPagedIn
int	myPagedLodCount

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Detailed Description

OSG Visitor class which pages the highest level of detail of paged LOD nodes in.

This is a base class, intended to be overridden. This base class will cause paging in of every paged LOD node. Subclasses may be more selective by overriding requiresPageIn().

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Member Typedef Documentation

typedef std::list<std::pair<osg::Node*, int> > DtPageInVisitor::DtNodeChildList

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Constructor & Destructor Documentation

DtPageInVisitor::DtPageInVisitor

(

)

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Member Function Documentation

virtual void DtPageInVisitor::apply

(

osg::Group &

node

)

[virtual]

virtual void DtPageInVisitor::apply

(

osg::Geode &

node

)

[virtual]

virtual void DtPageInVisitor::apply

(

osg::LOD &

node

)

[virtual]

virtual void DtPageInVisitor::apply

(

osg::PagedLOD &

node

)

[virtual]

virtual void DtPageInVisitor::apply

(

osg::CoordinateSystemNode &

node

)

[virtual]

virtual unsigned int DtPageInVisitor::numNodesRequested

(

)

const [virtual]

virtual const DtNodeChildList& DtPageInVisitor::nodesRequested

(

)

const [virtual]

virtual bool DtPageInVisitor::allDataPagedIn

(

)

const [virtual]

May be called after applying this visitor.

Returns:

True if all the data required is already paged in.

virtual int DtPageInVisitor::pagedLodCount

(

)

const [virtual]

Returns:

the number of paged LOD nodes that were visited.

virtual bool DtPageInVisitor::requiresPageIn

(

osg::Node &

node

)

[protected, virtual]

Returns:

True if this node should be paged in. This is overridden in subclasses, depending on how the paging is being implemented. Default implementation returns true, which pages in the entire database.

Reimplemented in DtGeometryPageInVisitor.

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Member Data Documentation

DtNodeChildList DtPageInVisitor::myPagedNodesRequested [protected]

This holds pointers to all the paged LOD nodes that have requests for paging in initiated by this visitor.

bool DtPageInVisitor::myAllDataPagedIn [protected]

int DtPageInVisitor::myPagedLodCount [protected]

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

• include/vantageTerrainImplementation/pageInVisitor.h