Eigen::Diagonal< MatrixType, _DiagIndex > Class Template Reference

Expression of a diagonal/subdiagonal/superdiagonal in a matrix. More...

#include <Diagonal.h>

Inheritance diagram for Eigen::Diagonal< MatrixType, _DiagIndex >:

Public Types
enum	{ DiagIndex = _DiagIndex }
typedef internal::dense_xpr_base< Diagonal >::type	Base
typedef internal::conditional< internal::is_lvalue< MatrixType >::value, Scalar, const Scalar >::type	ScalarWithConstIfNotLvalue

Public Member Functions
CoeffReturnType	coeff (Index row, Index) const
CoeffReturnType	coeff (Index idx) const
Scalar &	coeffRef (Index row, Index)
const Scalar &	coeffRef (Index row, Index) const
Scalar &	coeffRef (Index idx)
const Scalar &	coeffRef (Index idx) const
Index	cols () const
ScalarWithConstIfNotLvalue *	data ()
const Scalar *	data () const
	Diagonal (MatrixType &matrix, Index a_index=DiagIndex)
int	index () const
Index	innerStride () const
const internal::remove_all< typename MatrixType::Nested >::type &	nestedExpression () const
Index	outerStride () const
Index	rows () const

Protected Attributes
const internal::variable_if_dynamicindex< Index, DiagIndex >	m_index
MatrixType::Nested	m_matrix

Private Member Functions
EIGEN_STRONG_INLINE Index	absDiagIndex () const
EIGEN_STRONG_INLINE Index	colOffset () const
template<int LoadMode>
MatrixType::PacketReturnType	packet (Index) const
template<int LoadMode>
MatrixType::PacketReturnType	packet (Index, Index) const
EIGEN_STRONG_INLINE Index	rowOffset () const

Detailed Description

template<typename MatrixType, int _DiagIndex>
class Eigen::Diagonal< MatrixType, _DiagIndex >

Expression of a diagonal/subdiagonal/superdiagonal in a matrix.

Parameters

MatrixType	the type of the object in which we are taking a sub/main/super diagonal
DiagIndex	the index of the sub/super diagonal. The default is 0 and it means the main diagonal. A positive value means a superdiagonal, a negative value means a subdiagonal. You can also use Dynamic so the index can be set at runtime.

The matrix is not required to be square.

This class represents an expression of the main diagonal, or any sub/super diagonal of a square matrix. It is the return type of MatrixBase::diagonal() and MatrixBase::diagonal(Index) and most of the time this is the only way it is used.

See also

MatrixBase::diagonal(), MatrixBase::diagonal(Index)

Definition at line 64 of file Diagonal.h.

Member Typedef Documentation

template<typename MatrixType, int _DiagIndex>

typedef internal::dense_xpr_base<Diagonal>::type Eigen::Diagonal< MatrixType, _DiagIndex >::Base

Definition at line 70 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

typedef internal::conditional< internal::is_lvalue<MatrixType>::value, Scalar, const Scalar >::type Eigen::Diagonal< MatrixType, _DiagIndex >::ScalarWithConstIfNotLvalue

Definition at line 96 of file Diagonal.h.

Member Enumeration Documentation

template<typename MatrixType, int _DiagIndex>

anonymous enum

Enumerator
DiagIndex

Definition at line 69 of file Diagonal.h.

Constructor & Destructor Documentation

template<typename MatrixType, int _DiagIndex>

Eigen::Diagonal< MatrixType, _DiagIndex >::Diagonal ( MatrixType &  matrix, Index  a_index = DiagIndex  )

inline

Definition at line 73 of file Diagonal.h.

Member Function Documentation

template<typename MatrixType, int _DiagIndex>

EIGEN_STRONG_INLINE Index Eigen::Diagonal< MatrixType, _DiagIndex >::absDiagIndex ( ) const

inlineprivate

Definition at line 150 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

CoeffReturnType Eigen::Diagonal< MatrixType, _DiagIndex >::coeff ( Index  row, Index    ) const

inline

Definition at line 112 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

CoeffReturnType Eigen::Diagonal< MatrixType, _DiagIndex >::coeff ( Index  idx ) const

inline

Definition at line 128 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Scalar& Eigen::Diagonal< MatrixType, _DiagIndex >::coeffRef ( Index  row, Index    )

inline

Definition at line 101 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

const Scalar& Eigen::Diagonal< MatrixType, _DiagIndex >::coeffRef ( Index  row, Index    ) const

inline

Definition at line 107 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Scalar& Eigen::Diagonal< MatrixType, _DiagIndex >::coeffRef ( Index  idx )

inline

Definition at line 117 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

const Scalar& Eigen::Diagonal< MatrixType, _DiagIndex >::coeffRef ( Index  idx ) const

inline

Definition at line 123 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

EIGEN_STRONG_INLINE Index Eigen::Diagonal< MatrixType, _DiagIndex >::colOffset ( ) const

inlineprivate

Definition at line 152 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Index Eigen::Diagonal< MatrixType, _DiagIndex >::cols ( void  ) const

inline

Definition at line 80 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

ScalarWithConstIfNotLvalue* Eigen::Diagonal< MatrixType, _DiagIndex >::data ( )

inline

Definition at line 98 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

const Scalar* Eigen::Diagonal< MatrixType, _DiagIndex >::data ( ) const

inline

Definition at line 99 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

int Eigen::Diagonal< MatrixType, _DiagIndex >::index ( ) const

inline

Definition at line 139 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Index Eigen::Diagonal< MatrixType, _DiagIndex >::innerStride ( ) const

inline

Definition at line 82 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

const internal::remove_all<typename MatrixType::Nested>::type& Eigen::Diagonal< MatrixType, _DiagIndex >::nestedExpression ( ) const

inline

Definition at line 134 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Index Eigen::Diagonal< MatrixType, _DiagIndex >::outerStride ( ) const

inline

Definition at line 87 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

template<int LoadMode>

MatrixType::PacketReturnType Eigen::Diagonal< MatrixType, _DiagIndex >::packet ( Index  ) const

private

template<typename MatrixType, int _DiagIndex>

template<int LoadMode>

MatrixType::PacketReturnType Eigen::Diagonal< MatrixType, _DiagIndex >::packet ( Index  , Index    ) const

private

template<typename MatrixType, int _DiagIndex>

EIGEN_STRONG_INLINE Index Eigen::Diagonal< MatrixType, _DiagIndex >::rowOffset ( ) const

inlineprivate

Definition at line 151 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

Index Eigen::Diagonal< MatrixType, _DiagIndex >::rows ( void  ) const

inline

Definition at line 77 of file Diagonal.h.

Member Data Documentation

template<typename MatrixType, int _DiagIndex>

const internal::variable_if_dynamicindex<Index, DiagIndex> Eigen::Diagonal< MatrixType, _DiagIndex >::m_index

protected

Definition at line 146 of file Diagonal.h.

template<typename MatrixType, int _DiagIndex>

MatrixType::Nested Eigen::Diagonal< MatrixType, _DiagIndex >::m_matrix

protected

Definition at line 145 of file Diagonal.h.

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

• Diagonal.h