the Intersector Cache class. More...

Public Member Functions
	DtIntersectorCache ()
	CTOR.
virtual	~DtIntersectorCache ()
	DTOR.
void	setCacheLimit (int)
	Sets the number of items than can be in the cache at any given time.
int	cacheLimit () const
virtual bool	cachedPointResult (DtIntersector::IntersectProperties, double x, double y, double z, DtIntersector::DtIntersections &)
	Retrieve the cache results of a single point intersection test.
virtual void	addCachedPointResult (const DtIntersector::IntersectProperties &, double x, double y, double z, const DtIntersector::DtIntersections &)
	Add the results of a single point intersection text.
virtual bool	cachedLineResult (DtIntersector::IntersectProperties, double x, double y, double z, double end_x, double end_y, double end_z, DtIntersector::DtIntersections &)
	Retrieve cached results of a line intersection test.
virtual void	addCachedLineResult (const DtIntersector::IntersectProperties &, double x, double y, double z, double end_x, double end_y, double end_z, const DtIntersector::DtIntersections &)
	Add results of a line intersection test.
virtual void	clear ()
	Clear out all results.
Protected Types
typedef std::pair < DtIntersector::DtIntersections, int >	PointInformation
	In a single point cache, there is only one map that contains all possible end points.
typedef boost::unordered_map < std::size_t, PointInformation >	PointCache
typedef std::vector< std::size_t >	KeyVector
	Use the ordered map to ensure least used gets taken away first.
typedef std::map< int, KeyVector >	CacheEntries
Protected Member Functions
virtual void	addToCache (const DtIntersectorCacheKey &)
virtual void	updateCache (PointCache::iterator &)
virtual void	removeFromCache ()
	Removes least used item from cache.
Protected Attributes
PointCache	myPointCache
CacheEntries	myCacheEntries
unsigned int	myCacheLimit
unsigned int	myTotalCacheSize

Detailed Description

the Intersector Cache class.

Use to store intersection and intersection results. Can only be used to cache intersection results (line or point)

Member Typedef Documentation

typedef std::pair<DtIntersector::DtIntersections, int> makVrv::DtIntersectorCache::PointInformation [protected]

In a single point cache, there is only one map that contains all possible end points.

typedef boost::unordered_map<std::size_t, PointInformation> makVrv::DtIntersectorCache::PointCache [protected]

typedef std::vector<std::size_t> makVrv::DtIntersectorCache::KeyVector [protected]

Use the ordered map to ensure least used gets taken away first.

typedef std::map<int, KeyVector> makVrv::DtIntersectorCache::CacheEntries [protected]

Constructor & Destructor Documentation

makVrv::DtIntersectorCache::DtIntersectorCache ( )

CTOR.

virtual makVrv::DtIntersectorCache::~DtIntersectorCache ( ) [virtual]

DTOR.

Member Function Documentation

void makVrv::DtIntersectorCache::setCacheLimit ( int )

Sets the number of items than can be in the cache at any given time.

0 or less means that there is no limit

int makVrv::DtIntersectorCache::cacheLimit ( ) const

virtual bool makVrv::DtIntersectorCache::cachedPointResult	(	DtIntersector::IntersectProperties	,
		double	x,
		double	y,
		double	z,
		DtIntersector::DtIntersections &
	)		`[virtual]`

Retrieve the cache results of a single point intersection test.

virtual void makVrv::DtIntersectorCache::addCachedPointResult	(	const DtIntersector::IntersectProperties &	,
		double	x,
		double	y,
		double	z,
		const DtIntersector::DtIntersections &
	)		`[virtual]`

Add the results of a single point intersection text.

virtual bool makVrv::DtIntersectorCache::cachedLineResult	(	DtIntersector::IntersectProperties	,
		double	x,
		double	y,
		double	z,
		double	end_x,
		double	end_y,
		double	end_z,
		DtIntersector::DtIntersections &
	)		`[virtual]`

Retrieve cached results of a line intersection test.

virtual void makVrv::DtIntersectorCache::addCachedLineResult	(	const DtIntersector::IntersectProperties &	,
		double	x,
		double	y,
		double	z,
		double	end_x,
		double	end_y,
		double	end_z,
		const DtIntersector::DtIntersections &
	)		`[virtual]`