cv::SparseMat_< _Tp > Class Template Reference

Template sparse n-dimensional array class derived from SparseMat. More...

#include <opencv2/core/mat.hpp>

Inheritance diagram for cv::SparseMat_< _Tp >:

Public Types
typedef SparseMatConstIterator_< _Tp >	const_iterator
typedef SparseMatIterator_< _Tp >	iterator
Public Types inherited from cv::SparseMat
enum	{   MAGIC_VAL =0x42FD0000,   MAX_DIM =32,   HASH_SCALE =0x5bd1e995,   HASH_BIT =0x80000000 }
typedef SparseMatConstIterator	const_iterator
typedef SparseMatIterator	iterator

Public Member Functions
	SparseMat_ ()
	the default constructor More...
	SparseMat_ (int dims, const int *_sizes)
	the full constructor equivalent to SparseMat(dims, _sizes, DataType<_Tp>::type) More...
	SparseMat_ (const SparseMat &m)
	the copy constructor. If DataType<_Tp>.type != m.type(), the m elements are converted More...
	SparseMat_ (const SparseMat_ &m)
	the copy constructor. This is O(1) operation - no data is copied More...
	SparseMat_ (const Mat &m)
	converts dense matrix to the sparse form More...
SparseMatIterator_< _Tp >	begin ()
	returns sparse matrix iterator pointing to the first sparse matrix element More...
SparseMatConstIterator_< _Tp >	begin () const
	returns read-only sparse matrix iterator pointing to the first sparse matrix element More...
int	channels () const
	returns the number of channels in each matrix element More...
SparseMat_	clone () const CV_NODISCARD
	makes full copy of the matrix. All the elements are duplicated More...
void	create (int dims, const int *_sizes)
	equivalent to cv::SparseMat::create(dims, _sizes, DataType<_Tp>::type) More...
int	depth () const
	returns depth of the matrix elements More...
SparseMatIterator_< _Tp >	end ()
	returns sparse matrix iterator pointing to the element following the last sparse matrix element More...
SparseMatConstIterator_< _Tp >	end () const
	returns read-only sparse matrix iterator pointing to the element following the last sparse matrix element More...
_Tp	operator() (int i0, size_t *hashval=0) const
	equivalent to SparseMat::value<_Tp>(i0, hashval) More...
_Tp	operator() (int i0, int i1, size_t *hashval=0) const
	equivalent to SparseMat::value<_Tp>(i0, i1, hashval) More...
_Tp	operator() (int i0, int i1, int i2, size_t *hashval=0) const
	equivalent to SparseMat::value<_Tp>(i0, i1, i2, hashval) More...
_Tp	operator() (const int *idx, size_t *hashval=0) const
	equivalent to SparseMat::value<_Tp>(idx, hashval) More...
SparseMat_ &	operator= (const SparseMat &m)
	converts the old-style sparse matrix to the C++ class. All the elements are copied More...
SparseMat_ &	operator= (const SparseMat_ &m)
	the assignment operator. This is O(1) operation - no data is copied More...
SparseMat_ &	operator= (const Mat &m)
	converts dense matrix to the sparse form More...
_Tp &	ref (int i0, size_t *hashval=0)
	equivalent to SparseMat::ref<_Tp>(i0, hashval) More...
_Tp &	ref (int i0, int i1, size_t *hashval=0)
	equivalent to SparseMat::ref<_Tp>(i0, i1, hashval) More...
_Tp &	ref (int i0, int i1, int i2, size_t *hashval=0)
	equivalent to SparseMat::ref<_Tp>(i0, i1, i2, hashval) More...
_Tp &	ref (const int *idx, size_t *hashval=0)
	equivalent to SparseMat::ref<_Tp>(idx, hashval) More...
int	type () const
	converts sparse matrix to the old-style CvSparseMat. All the elements are copied More...
Public Member Functions inherited from cv::SparseMat
	SparseMat ()
	Various SparseMat constructors. More...
	SparseMat (int dims, const int *_sizes, int _type)
	SparseMat (const SparseMat &m)
	SparseMat (const Mat &m)
	~SparseMat ()
	the destructor More...
void	addref ()
	manually increments the reference counter to the header. More...
void	assignTo (SparseMat &m, int type=-1) const
int	channels () const
	returns the number of channels More...
void	clear ()
	sets all the sparse matrix elements to 0, which means clearing the hash table. More...
SparseMat	clone () const CV_NODISCARD
	creates full copy of the matrix More...
void	convertTo (SparseMat &m, int rtype, double alpha=1) const
	multiplies all the matrix elements by the specified scale factor alpha and converts the results to the specified data type More...
void	convertTo (Mat &m, int rtype, double alpha=1, double beta=0) const
	converts sparse matrix to dense n-dim matrix with optional type conversion and scaling. More...
void	copyTo (SparseMat &m) const
	copies all the data to the destination matrix. All the previous content of m is erased More...
void	copyTo (Mat &m) const
	converts sparse matrix to dense matrix. More...
void	create (int dims, const int *_sizes, int _type)
	reallocates sparse matrix. More...
int	depth () const
	returns the depth of sparse matrix elements More...
int	dims () const
	returns the matrix dimensionality More...
size_t	elemSize () const
	converts sparse matrix to the old-style representation; all the elements are copied. More...
size_t	elemSize1 () const
	returns elemSize()/channels() More...
SparseMatIterator	end ()
	returns the sparse matrix iterator at the matrix end More...
SparseMatConstIterator	end () const
	returns the read-only sparse matrix iterator at the matrix end More...
template<typename _Tp >
SparseMatIterator_< _Tp >	end ()
	returns the typed sparse matrix iterator at the matrix end More...
template<typename _Tp >
SparseMatConstIterator_< _Tp >	end () const
	returns the typed read-only sparse matrix iterator at the matrix end More...
void	erase (int i0, int i1, size_t *hashval=0)
	erases the specified element (2D case) More...
void	erase (int i0, int i1, int i2, size_t *hashval=0)
	erases the specified element (3D case) More...
void	erase (const int *idx, size_t *hashval=0)
	erases the specified element (nD case) More...
size_t	hash (int i0) const
	computes the element hash value (1D case) More...
size_t	hash (int i0, int i1) const
	computes the element hash value (2D case) More...
size_t	hash (int i0, int i1, int i2) const
	computes the element hash value (3D case) More...
size_t	hash (const int *idx) const
	computes the element hash value (nD case) More...
uchar *	newNode (const int *idx, size_t hashval)
Node *	node (size_t nidx)
const Node *	node (size_t nidx) const
size_t	nzcount () const
	returns the number of non-zero elements (=the number of hash table nodes) More...
SparseMat &	operator= (const SparseMat &m)
	assignment operator. This is O(1) operation, i.e. no data is copied More...
SparseMat &	operator= (const Mat &m)
	equivalent to the corresponding constructor More...
void	release ()
void	removeNode (size_t hidx, size_t nidx, size_t previdx)
void	resizeHashTab (size_t newsize)
const int *	size () const
	returns the array of sizes, or NULL if the matrix is not allocated More...
int	size (int i) const
	returns the size of i-th matrix dimension (or 0) More...
int	type () const
	returns type of sparse matrix elements More...
template<typename _Tp >
_Tp &	value (Node *n)
	returns the value stored in the sparse martix node More...
template<typename _Tp >
const _Tp &	value (const Node *n) const
	returns the value stored in the sparse martix node More...
uchar *	ptr (int i0, bool createMissing, size_t *hashval=0)
	returns pointer to the specified element (1D case) More...
uchar *	ptr (int i0, int i1, bool createMissing, size_t *hashval=0)
	returns pointer to the specified element (2D case) More...
uchar *	ptr (int i0, int i1, int i2, bool createMissing, size_t *hashval=0)
	returns pointer to the specified element (3D case) More...
uchar *	ptr (const int *idx, bool createMissing, size_t *hashval=0)
	returns pointer to the specified element (nD case) More...
template<typename _Tp >
_Tp &	ref (int i0, size_t *hashval=0)
	returns reference to the specified element (1D case) More...
template<typename _Tp >
_Tp &	ref (int i0, int i1, size_t *hashval=0)
	returns reference to the specified element (2D case) More...
template<typename _Tp >
_Tp &	ref (int i0, int i1, int i2, size_t *hashval=0)
	returns reference to the specified element (3D case) More...
template<typename _Tp >
_Tp &	ref (const int *idx, size_t *hashval=0)
	returns reference to the specified element (nD case) More...
template<typename _Tp >
_Tp	value (int i0, size_t *hashval=0) const
	returns value of the specified element (1D case) More...
template<typename _Tp >
_Tp	value (int i0, int i1, size_t *hashval=0) const
	returns value of the specified element (2D case) More...
template<typename _Tp >
_Tp	value (int i0, int i1, int i2, size_t *hashval=0) const
	returns value of the specified element (3D case) More...
template<typename _Tp >
_Tp	value (const int *idx, size_t *hashval=0) const
	returns value of the specified element (nD case) More...
template<typename _Tp >
const _Tp *	find (int i0, size_t *hashval=0) const
	returns pointer to the specified element (1D case) More...
template<typename _Tp >
const _Tp *	find (int i0, int i1, size_t *hashval=0) const
	returns pointer to the specified element (2D case) More...
template<typename _Tp >
const _Tp *	find (int i0, int i1, int i2, size_t *hashval=0) const
	returns pointer to the specified element (3D case) More...
template<typename _Tp >
const _Tp *	find (const int *idx, size_t *hashval=0) const
	returns pointer to the specified element (nD case) More...
SparseMatIterator	begin ()
	returns the sparse matrix iterator at the matrix beginning More...
template<typename _Tp >
SparseMatIterator_< _Tp >	begin ()
	returns the sparse matrix iterator at the matrix beginning More...
SparseMatConstIterator	begin () const
	returns the read-only sparse matrix iterator at the matrix beginning More...
template<typename _Tp >
SparseMatConstIterator_< _Tp >	begin () const
	returns the read-only sparse matrix iterator at the matrix beginning More...

Additional Inherited Members
Public Attributes inherited from cv::SparseMat
int	flags
Hdr *	hdr

Detailed Description

template<typename _Tp>
class cv::SparseMat_< _Tp >

Template sparse n-dimensional array class derived from SparseMat.

SparseMat_ is a thin wrapper on top of SparseMat created in the same way as Mat_ . It simplifies notation of some operations:

int sz[] = {10, 20, 30};
SparseMat_<double> M(3, sz);
...
M.ref(1, 2, 3) = M(4, 5, 6) + M(7, 8, 9);

Member Typedef Documentation

const_iterator

template<typename _Tp>

typedef SparseMatConstIterator_<_Tp> cv::SparseMat_< _Tp >::const_iterator

iterator

template<typename _Tp>

typedef SparseMatIterator_<_Tp> cv::SparseMat_< _Tp >::iterator

Constructor & Destructor Documentation

SparseMat_() [1/5]

template<typename _Tp>

cv::SparseMat_< _Tp >::SparseMat_

(

)

the default constructor

SparseMat_() [2/5]

template<typename _Tp>

cv::SparseMat_< _Tp >::SparseMat_	(	int	dims,
		const int *	_sizes
	)

the full constructor equivalent to SparseMat(dims, _sizes, DataType<_Tp>::type)

SparseMat_() [3/5]

template<typename _Tp>

cv::SparseMat_< _Tp >::SparseMat_

(

const SparseMat &

m

)

the copy constructor. If DataType<_Tp>.type != m.type(), the m elements are converted

SparseMat_() [4/5]

template<typename _Tp>

cv::SparseMat_< _Tp >::SparseMat_

(

const SparseMat_< _Tp > &

m

)

the copy constructor. This is O(1) operation - no data is copied

SparseMat_() [5/5]

template<typename _Tp>

cv::SparseMat_< _Tp >::SparseMat_

(

const Mat &

m

)

converts dense matrix to the sparse form

Member Function Documentation

begin() [1/2]

template<typename _Tp>

SparseMatIterator_<_Tp> cv::SparseMat_< _Tp >::begin

(

)

returns sparse matrix iterator pointing to the first sparse matrix element

begin() [2/2]

template<typename _Tp>

SparseMatConstIterator_<_Tp> cv::SparseMat_< _Tp >::begin

(

)

const

returns read-only sparse matrix iterator pointing to the first sparse matrix element

channels()

template<typename _Tp>

int cv::SparseMat_< _Tp >::channels

(

)

const

returns the number of channels in each matrix element

clone()

template<typename _Tp>

SparseMat_ cv::SparseMat_< _Tp >::clone

(

)

const

makes full copy of the matrix. All the elements are duplicated

create()

template<typename _Tp>

void cv::SparseMat_< _Tp >::create	(	int	dims,
		const int *	_sizes
	)

equivalent to cv::SparseMat::create(dims, _sizes, DataType<_Tp>::type)

depth()

template<typename _Tp>

int cv::SparseMat_< _Tp >::depth

(

)

const

returns depth of the matrix elements

end() [1/2]

template<typename _Tp>

SparseMatIterator_<_Tp> cv::SparseMat_< _Tp >::end

(

)

returns sparse matrix iterator pointing to the element following the last sparse matrix element

end() [2/2]

template<typename _Tp>

SparseMatConstIterator_<_Tp> cv::SparseMat_< _Tp >::end

(

)

const

returns read-only sparse matrix iterator pointing to the element following the last sparse matrix element

operator()() [1/4]

template<typename _Tp>

_Tp cv::SparseMat_< _Tp >::operator()	(	int	i0,
		size_t *	hashval = 0
	)		const

equivalent to SparseMat::value<_Tp>(i0, hashval)

operator()() [2/4]

template<typename _Tp>

_Tp cv::SparseMat_< _Tp >::operator()	(	int	i0,
		int	i1,
		size_t *	hashval = 0
	)		const

equivalent to SparseMat::value<_Tp>(i0, i1, hashval)

operator()() [3/4]

template<typename _Tp>

_Tp cv::SparseMat_< _Tp >::operator()	(	int	i0,
		int	i1,
		int	i2,
		size_t *	hashval = 0
	)		const

equivalent to SparseMat::value<_Tp>(i0, i1, i2, hashval)

operator()() [4/4]

template<typename _Tp>

_Tp cv::SparseMat_< _Tp >::operator()	(	const int *	idx,
		size_t *	hashval = 0
	)		const

equivalent to SparseMat::value<_Tp>(idx, hashval)

operator=() [1/3]

template<typename _Tp>

SparseMat_& cv::SparseMat_< _Tp >::operator=

(

const SparseMat &

m

)

converts the old-style sparse matrix to the C++ class. All the elements are copied

the assignment operator. If DataType<_Tp>.type != m.type(), the m elements are converted

operator=() [2/3]

template<typename _Tp>

SparseMat_& cv::SparseMat_< _Tp >::operator=

(

const SparseMat_< _Tp > &

m

)

the assignment operator. This is O(1) operation - no data is copied

operator=() [3/3]

template<typename _Tp>

SparseMat_& cv::SparseMat_< _Tp >::operator=

(

const Mat &

m

)

converts dense matrix to the sparse form

ref() [1/4]

template<typename _Tp>

_Tp& cv::SparseMat_< _Tp >::ref	(	int	i0,
		size_t *	hashval = 0
	)

equivalent to SparseMat::ref<_Tp>(i0, hashval)

ref() [2/4]

template<typename _Tp>

_Tp& cv::SparseMat_< _Tp >::ref	(	int	i0,
		int	i1,
		size_t *	hashval = 0
	)

equivalent to SparseMat::ref<_Tp>(i0, i1, hashval)

ref() [3/4]

template<typename _Tp>

_Tp& cv::SparseMat_< _Tp >::ref	(	int	i0,
		int	i1,
		int	i2,
		size_t *	hashval = 0
	)

equivalent to SparseMat::ref<_Tp>(i0, i1, i2, hashval)

ref() [4/4]

template<typename _Tp>

_Tp& cv::SparseMat_< _Tp >::ref	(	const int *	idx,
		size_t *	hashval = 0
	)

equivalent to SparseMat::ref<_Tp>(idx, hashval)

type()

template<typename _Tp>

int cv::SparseMat_< _Tp >::type

(

)

const

converts sparse matrix to the old-style CvSparseMat. All the elements are copied

returns type of the matrix elements

---

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

• opencv2/core/mat.hpp