DtSpatialVrfObjectManagerOctree Class Reference

Spatial object manager which uses an octree. This manager behaves better than the spatial subdivision-based manager for scenarios which have uneven distribution of their entities across the available terrain.

Inheritance diagram for DtSpatialVrfObjectManagerOctree:

Public Member Functions
	DtSpatialVrfObjectManagerOctree (const DtManagedObjectListConstPtr &vrfObjList)
virtual	~DtSpatialVrfObjectManagerOctree ()
virtual void	addVrfObjects (const DtManagedObjectListConstPtr &vrfObjects)
virtual void	removeVrfObject (const DtSimObject *vrfObject)
virtual bool	setResolutions (unsigned int xRes, unsigned int yRes, unsigned int zRes)
virtual void	clearVrfObjects ()
virtual void	reset (const DtManagedObjectListConstPtr &vrfObjects)
virtual bool	getVrfObjects (const DtExtent &extent, DtVrfConstObjectUniqueContainer &objects) const
virtual bool	getVrfObjects (DtVrfObjectPredicate &predicate, const DtExtent &extent, DtVrfConstObjectUniqueContainer &objects) const
virtual bool	getVrfObjects (DtChord &chord, std::list< const DtSimObject * > &objects) const
virtual bool	getVrfObjects (DtVrfObjectPredicate &predicate, DtChord &chord, std::list< const DtSimObject * > &objects) const
virtual void	visitVrfObjects (const DtExtent &extent, DtSpatialSelectionFunctor &callback) const
virtual void	visitVrfObjects (const DtChord &chord, DtSpatialSelectionFunctor &callback) const
unsigned int	numObjects () const
Public Member Functions inherited from DtSpatialVrfObjectManagerInterface
virtual	~DtSpatialVrfObjectManagerInterface ()
virtual bool	getVrfObjects (const DtVrfObjectPredicate &predicate, const DtExtent &extent, DtVrfConstObjectUniqueContainer &objects) const =0
virtual bool	getVrfObjects (const DtChord &chord, std::list< const DtSimObject * > &objects) const =0
virtual bool	getVrfObjects (const DtVrfObjectPredicate &predicate, const DtChord &chord, std::list< const DtSimObject * > &objects) const =0

Protected Attributes
DtExtent	myRootExtent
DtOctree< const DtSimObject > *	myOctree

Private Member Functions
	DtSpatialVrfObjectManagerOctree ()
	DtSpatialVrfObjectManagerOctree (const DtSpatialVrfObjectManagerOctree &orig)
DtSpatialVrfObjectManagerOctree &	operator= (const DtSpatialVrfObjectManagerOctree &orig)

Additional Inherited Members
Public Types inherited from DtSpatialVrfObjectManagerInterface
typedef std::vector< const DtSimObject * >	DtVrfObjectUniqueContainer
typedef std::vector< const DtSimObject * >	DtVrfConstObjectUniqueContainer
typedef std::vector< const DtSimObject * >	DtVrfObjectContainer

Constructor & Destructor Documentation

DtSpatialVrfObjectManagerOctree::DtSpatialVrfObjectManagerOctree ( )

private

Not implemented.

DtSpatialVrfObjectManagerOctree::DtSpatialVrfObjectManagerOctree ( const DtSpatialVrfObjectManagerOctree &  orig )

private

Not implemented.

DtSpatialVrfObjectManagerOctree::DtSpatialVrfObjectManagerOctree

(

const DtManagedObjectListConstPtr &

vrfObjList

)

virtual DtSpatialVrfObjectManagerOctree::~DtSpatialVrfObjectManagerOctree ( )

virtual

Member Function Documentation

DtSpatialVrfObjectManagerOctree& DtSpatialVrfObjectManagerOctree::operator= ( const DtSpatialVrfObjectManagerOctree &  orig )

private

Not implemented.

virtual void DtSpatialVrfObjectManagerOctree::addVrfObjects ( const DtManagedObjectListConstPtr &  vrfObjects )

virtual

Spatially sorts the vrfObjects associated in the vrfObjects.

Implements DtSpatialVrfObjectManagerInterface.

virtual void DtSpatialVrfObjectManagerOctree::removeVrfObject ( const DtSimObject *  vrfObject )

virtual

Removes vrfObject from the set of vrfObjects we are maintaining.

Parameters

vrfObject

Pointer to the object to be removed.

Implements DtSpatialVrfObjectManagerInterface.

virtual bool DtSpatialVrfObjectManagerOctree::setResolutions ( unsigned int  xRes, unsigned int  yRes, unsigned int  zRes  )

virtual

Doesn't do anything. Only here for interface compatibility.

Implements DtSpatialVrfObjectManagerInterface.

virtual void DtSpatialVrfObjectManagerOctree::clearVrfObjects ( )

virtual

Clears all managed objects from the manager. Does not affect the spatial container, other than to empty its cells of any elements.

Implements DtSpatialVrfObjectManagerInterface.

virtual void DtSpatialVrfObjectManagerOctree::reset ( const DtManagedObjectListConstPtr &  vrfObjects )

virtual

Clears out the current subdivision, sets it to have the minimum extent, that contains all of the DtSimObjects specified, and adds the specified DtSimObjects.

Note

This is provided as a memory optimization. Deleting and reallocating the spatial subdivision every tick was inefficient. So the spatial container is just cleared and resized to adjust for entities moving, being created destroyed, etc. This has the benefit of not causing a large memory reallocation, but at the disadvantage of not allowing the spatial subdivision to change its resolution.

Implements DtSpatialVrfObjectManagerInterface.

virtual void DtSpatialVrfObjectManagerOctree::visitVrfObjects ( const DtExtent &  extent, DtSpatialSelectionFunctor &  callback  ) const

virtual

Functions that call the specified functor for every object intersecting the requested region (whether chord or extent). The functor should return false while additional processing should be done, and true if processing is complete and visitVrfObjects() should return. Note that processing is not guaranteed to stop immediately when the functor returns true; it is only a recommendation that processing can stop at any time.

Note

The functor may, and probably will, be called for additional DtSimObjects when a primitive is supplied. We are only guaranteed not to miss any that do intersect.

Implements DtSpatialVrfObjectManagerInterface.

virtual void DtSpatialVrfObjectManagerOctree::visitVrfObjects ( const DtChord &  chord, DtSpatialSelectionFunctor &  callback  ) const

virtual

Implements DtSpatialVrfObjectManagerInterface.

unsigned int DtSpatialVrfObjectManagerOctree::numObjects ( ) const

inlinevirtual

Number of objects in the octree.

Implements DtSpatialVrfObjectManagerInterface.

Member Data Documentation

DtExtent DtSpatialVrfObjectManagerOctree::myRootExtent

protected

The extent of the octree.

DtOctree<const DtSimObject>* DtSpatialVrfObjectManagerOctree::myOctree

protected

The octree being used to store the objects.

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

• /data/exports/nrhent7-1/nightly/docs/vrForces.vrf5-0-branch/include/vrfobjcore/spatialVrfObjectManagerOctree.h