ON_BoundingBoxCache Class Reference

#include <opennurbs_bounding_box.h>

Public Member Functions
	ON_BoundingBoxCache ()=default
	ON_BoundingBoxCache (const ON_BoundingBoxCache &)=default
	~ON_BoundingBoxCache ()=default
void	AddBoundingBox (const ON_BoundingBox &bbox, const ON_SHA1_Hash &hash)
	Add a bounding box that can be found from a hash value. More...
void	AddBoundingBox (const ON_BoundingBoxAndHash &bbox_and_hash)
unsigned int	BoundingBoxCount () const
bool	GetBoundingBox (const ON_SHA1_Hash &hash, ON_BoundingBox &bbox) const
	Get a cached bounding box. More...
ON_BoundingBoxCache &	operator= (const ON_BoundingBoxCache &)=default
bool	Read (class ON_BinaryArchive &archive)
void	RemoveAllBoundingBoxes ()
	Removes all bounding boxes. More...
bool	RemoveBoundingBox (const ON_SHA1_Hash &hash)
	Remove a bounding box that can be found from a hash value. More...
bool	Write (class ON_BinaryArchive &archive) const

Constructor & Destructor Documentation

ON_BoundingBoxCache() [1/2]

ON_BoundingBoxCache::ON_BoundingBoxCache ( )

default

~ON_BoundingBoxCache()

ON_BoundingBoxCache::~ON_BoundingBoxCache ( )

default

ON_BoundingBoxCache() [2/2]

ON_BoundingBoxCache::ON_BoundingBoxCache ( const ON_BoundingBoxCache &  )

default

Member Function Documentation

AddBoundingBox() [1/2]

void ON_BoundingBoxCache::AddBoundingBox	(	const ON_BoundingBox &	bbox,
		const ON_SHA1_Hash &	hash
	)

Add a bounding box that can be found from a hash value.

Parameters

bbox	[in]
hash	[in] A hash of the information needed to create this bounding box.

AddBoundingBox() [2/2]

void ON_BoundingBoxCache::AddBoundingBox

(

const ON_BoundingBoxAndHash &

bbox_and_hash

)

BoundingBoxCount()

unsigned int ON_BoundingBoxCache::BoundingBoxCount

(

)

const

Returns

Number of cached boxes.

GetBoundingBox()

bool ON_BoundingBoxCache::GetBoundingBox	(	const ON_SHA1_Hash &	hash,
		ON_BoundingBox &	bbox
	)		const

Get a cached bounding box.

Parameters

hash	[in]
bbox	[out] If the hash identifies a bounding box in the cache, then that bounding box is returned. Otherwise ON_BoundingBox::NanBoundingBox is returned.

Returns

true - cached bounding box returned false - bounding box not in cache.

operator=()

ON_BoundingBoxCache& ON_BoundingBoxCache::operator= ( const ON_BoundingBoxCache &  )

default

Read()

bool ON_BoundingBoxCache::Read

(

class ON_BinaryArchive &

archive

)

RemoveAllBoundingBoxes()

void ON_BoundingBoxCache::RemoveAllBoundingBoxes

(

)

Removes all bounding boxes.

If the hash values you are using are correctly computed and include all information that the bouding box depends on, then you never need to remove bounding boxes. Unused ones will get removed as new ones are added. If the hash does not include all information required to compute the bounding boxes, then call RemoveAllBoundingBoxes() when the non-hashed information changes.

RemoveBoundingBox()

bool ON_BoundingBoxCache::RemoveBoundingBox

(

const ON_SHA1_Hash &

hash

)

Remove a bounding box that can be found from a hash value.

Parameters

hash

[in]

Returns

true - hash was in the cache and removed. false - hash was not in the cache.

If the hash values you are using are correctly computed and include all information that the bouding box depends on, then you never need to remove bounding boxes. Unused ones will get removed as new ones are added.

Write()

bool ON_BoundingBoxCache::Write

(

class ON_BinaryArchive &

archive

)

const