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Eigen::PlainObjectBase< Derived > Class Template Reference

Dense storage base class for matrices and arrays. More...

#include <PlainObjectBase.h>

Inheritance diagram for Eigen::PlainObjectBase< Derived >:
Eigen::Array< Index, 64, 1, DontAlign > Eigen::Matrix< 3 > Eigen::Matrix< 6 > Eigen::Matrix< BodyState > Eigen::Matrix< ComplexScalar, ColsAtCompileTime, 1, Options &(~RowMajor), MaxColsAtCompileTime, 1 > Eigen::Matrix< ComplexScalar, ColsAtCompileTime, 1, Options &~RowMajor, MaxColsAtCompileTime, 1 > Eigen::Matrix< ComplexScalar, RowsAtCompileTime, ColsAtCompileTime, Eigen::Map ::Options, MaxRowsAtCompileTime, MaxColsAtCompileTime > Eigen::Matrix< ComplexScalar, RowsAtCompileTime, ColsAtCompileTime, MatrixType::Options, MaxRowsAtCompileTime, MaxColsAtCompileTime > Eigen::Matrix< ComplexScalar, RowsAtCompileTime, ColsAtCompileTime, Options, MaxRowsAtCompileTime, MaxColsAtCompileTime > Eigen::Matrix< Dim > Eigen::Matrix< Dim, NumSigmaPoints > Eigen::Matrix< DIMENSION > Eigen::Matrix< Dimension > Eigen::Matrix< DIMENSION, STATE_DIMENSION > Eigen::Matrix< double, 3, 4 > Eigen::Matrix< double, DPARM_SIZE, 1 > Eigen::Matrix< float, 2, 2, DontAlign > Eigen::Matrix< float, 2, 6 > Eigen::Matrix< Index, 1, EIGEN_SIZE_MIN_PREFER_DYNAMIC(ColsAtCompileTime, RowsAtCompileTime), RowMajor, 1, EIGEN_SIZE_MIN_PREFER_FIXED(MaxColsAtCompileTime, MaxRowsAtCompileTime)> Eigen::Matrix< Index, Dynamic, 1 > Eigen::Matrix< Index, MatrixType::RowsAtCompileTime, 1 > Eigen::Matrix< Index, Traits::RowsAtCompileTime, 1 > Eigen::Matrix< int, 1, MatrixType::ColsAtCompileTime > Eigen::Matrix< int, IPARM_SIZE, 1 > Eigen::Matrix< int, MatrixType::RowsAtCompileTime, 1 > Eigen::Matrix< internal::scalar_product_traits< Lhs::Scalar, Rhs::Scalar >::ReturnType, 1, 1 > Eigen::Matrix< m > Eigen::Matrix< Measurement > Eigen::Matrix< n > Eigen::Matrix< n, m > Eigen::Matrix< NumSigmaPoints > Eigen::Matrix< OriginalDimension, DIMENSION > Eigen::Matrix< RealScalar, Dynamic, 1 > Eigen::Matrix< RealScalar, Dynamic, Dynamic > Eigen::Matrix< RootType, _Deg, 1 > Eigen::Matrix< Scalar, 1, RowsAtCompileTime, RowMajor, 1, MaxRowsAtCompileTime > Eigen::Matrix< Scalar, 1, Size, Options|RowMajor, 1, MaxSize > Eigen::Matrix< Scalar, 3, 1 > Eigen::Matrix< Scalar, 4, 1 > Eigen::Matrix< Scalar, AmbientDimAtCompileTime, 1 > Eigen::Matrix< Scalar, ColsAtCompileTime, 1, Options &~RowMajor, MaxColsAtCompileTime, 1 > Eigen::Matrix< Scalar, ColsAtCompileTime, ColsAtCompileTime, MatrixOptions, MaxColsAtCompileTime, MaxColsAtCompileTime > Eigen::Matrix< Scalar, ColsAtCompileTime, RowsAtCompileTime, Options, MaxColsAtCompileTime, MaxRowsAtCompileTime > Eigen::Matrix< Scalar, Deg, 1 > Eigen::Matrix< Scalar, Deg_1, 1 > Eigen::Matrix< Scalar, DiagSizeAtCompileTime, DiagSizeAtCompileTime, MatrixOptions, MaxDiagSizeAtCompileTime, MaxDiagSizeAtCompileTime > Eigen::Matrix< Scalar, Dim, 1 > Eigen::Matrix< Scalar, Dynamic, 1 > Eigen::Matrix< Scalar, Dynamic, Dynamic > Eigen::Matrix< Scalar, Eigen::Dynamic, 1 > Eigen::Matrix< Scalar, HDim, HDim > Eigen::Matrix< Scalar, int(AmbientDimAtCompileTime)==Dynamic ? Dynamic :int(AmbientDimAtCompileTime)+1, 1 > Eigen::Matrix< Scalar, MatrixType::ColsAtCompileTime, MatrixType::ColsAtCompileTime > Eigen::Matrix< Scalar, MatrixType::RowsAtCompileTime, MinSize > Eigen::Matrix< Scalar, MinSize, 1 > Eigen::Matrix< Scalar, RowsAtCompileTime, 1, Options, MaxRowsAtCompileTime, 1 > Eigen::Matrix< Scalar, RowsAtCompileTime, RowsAtCompileTime, MatrixOptions, MaxRowsAtCompileTime, MaxRowsAtCompileTime > Eigen::Matrix< Scalar, Size, Size, ColMajor, MaxColsAtCompileTime, MaxColsAtCompileTime > Eigen::Matrix< Scalar, SizeMinusOne, 1, Options &~RowMajor, MaxSizeMinusOne, 1 > Eigen::Matrix< State > Eigen::Matrix< XformedDim >

Classes

struct  StridedAlignedMapType
 
struct  StridedConstAlignedMapType
 
struct  StridedConstMapType
 
struct  StridedMapType
 

Public Types

enum  { Options = internal::traits<Derived>::Options }
 
enum  { NeedsToAlign = SizeAtCompileTime != Dynamic && (internal::traits<Derived>::Flags & AlignedBit) != 0 }
 
typedef internal::dense_xpr_base< Derived >::type Base
 
typedef internal::traits< Derived >::StorageKind StorageKind
 
typedef internal::traits< Derived >::Index Index
 
typedef internal::traits< Derived >::Scalar Scalar
 
typedef internal::packet_traits< Scalar >::type PacketScalar
 
typedef NumTraits< Scalar >::Real RealScalar
 
typedef Derived DenseType
 
typedef Eigen::Map< Derived, Unaligned > MapType
 
typedef const Eigen::Map< const Derived, Unaligned > ConstMapType
 
typedef Eigen::Map< Derived, Aligned > AlignedMapType
 
typedef const Eigen::Map< const Derived, Aligned > ConstAlignedMapType
 

Public Member Functions

Base & base ()
 
const Base & base () const
 
EIGEN_STRONG_INLINE Index rows () const
 
EIGEN_STRONG_INLINE Index cols () const
 
EIGEN_STRONG_INLINE const Scalar & coeff (Index rowId, Index colId) const
 
EIGEN_STRONG_INLINE const Scalar & coeff (Index index) const
 
EIGEN_STRONG_INLINE Scalar & coeffRef (Index rowId, Index colId)
 
EIGEN_STRONG_INLINE Scalar & coeffRef (Index index)
 
EIGEN_STRONG_INLINE const Scalar & coeffRef (Index rowId, Index colId) const
 
EIGEN_STRONG_INLINE const Scalar & coeffRef (Index index) const
 
template<int LoadMode>
EIGEN_STRONG_INLINE PacketScalar packet (Index rowId, Index colId) const
 
template<int LoadMode>
EIGEN_STRONG_INLINE PacketScalar packet (Index index) const
 
template<int StoreMode>
EIGEN_STRONG_INLINE void writePacket (Index rowId, Index colId, const PacketScalar &val)
 
template<int StoreMode>
EIGEN_STRONG_INLINE void writePacket (Index index, const PacketScalar &val)
 
EIGEN_STRONG_INLINE const Scalar * data () const
 
EIGEN_STRONG_INLINE Scalar * data ()
 
EIGEN_STRONG_INLINE void resize (Index nbRows, Index nbCols)
 Resizes *this to a rows x cols matrix. More...
 
void resize (Index size)
 Resizes *this to a vector of length size. More...
 
void resize (NoChange_t, Index nbCols)
 Resizes the matrix, changing only the number of columns. More...
 
void resize (Index nbRows, NoChange_t)
 Resizes the matrix, changing only the number of rows. More...
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE void resizeLike (const EigenBase< OtherDerived > &_other)
 Resizes *this to have the same dimensions as other. More...
 
EIGEN_STRONG_INLINE void conservativeResize (Index nbRows, Index nbCols)
 Resizes the matrix to rows x cols while leaving old values untouched. More...
 
EIGEN_STRONG_INLINE void conservativeResize (Index nbRows, NoChange_t)
 Resizes the matrix to rows x cols while leaving old values untouched. More...
 
EIGEN_STRONG_INLINE void conservativeResize (NoChange_t, Index nbCols)
 Resizes the matrix to rows x cols while leaving old values untouched. More...
 
EIGEN_STRONG_INLINE void conservativeResize (Index size)
 Resizes the vector to size while retaining old values. More...
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE void conservativeResizeLike (const DenseBase< OtherDerived > &other)
 Resizes the matrix to rows x cols of other, while leaving old values untouched. More...
 
EIGEN_STRONG_INLINE Derived & operator= (const PlainObjectBase &other)
 This is a special case of the templated operator=. More...
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived & lazyAssign (const DenseBase< OtherDerived > &other)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived & operator= (const ReturnByValue< OtherDerived > &func)
 
 PlainObjectBase (internal::constructor_without_unaligned_array_assert)
 
EIGEN_STRONG_INLINE PlainObjectBase (const PlainObjectBase &other)
 Copy constructor.
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE PlainObjectBase (const DenseBase< OtherDerived > &other)
 
EIGEN_STRONG_INLINE PlainObjectBase (Index a_size, Index nbRows, Index nbCols)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived & operator= (const EigenBase< OtherDerived > &other)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE PlainObjectBase (const EigenBase< OtherDerived > &other)
 
Derived & setConstant (Index size, const Scalar &value)
 Resizes to the given size, and sets all coefficients in this expression to the given value. More...
 
Derived & setConstant (Index rows, Index cols, const Scalar &value)
 Resizes to the given size, and sets all coefficients in this expression to the given value. More...
 
Derived & setZero (Index size)
 Resizes to the given size, and sets all coefficients in this expression to zero. More...
 
Derived & setZero (Index rows, Index cols)
 Resizes to the given size, and sets all coefficients in this expression to zero. More...
 
Derived & setOnes (Index size)
 Resizes to the given newSize, and sets all coefficients in this expression to one. More...
 
Derived & setOnes (Index rows, Index cols)
 Resizes to the given size, and sets all coefficients in this expression to one. More...
 
Derived & setRandom (Index size)
 Resizes to the given newSize, and sets all coefficients in this expression to random values. More...
 
Derived & setRandom (Index rows, Index cols)
 Resizes to the given size, and sets all coefficients in this expression to random values. More...
 

Static Public Member Functions

static EIGEN_STRONG_INLINE void _check_template_params ()
 
Map

These are convenience functions returning Map objects.

The Map() static functions return unaligned Map objects, while the AlignedMap() functions return aligned Map objects and thus should be called only with 16-byte-aligned data pointers.

See also
class Map
static ConstMapType Map (const Scalar *data)
 
static MapType Map (Scalar *data)
 
static ConstMapType Map (const Scalar *data, Index size)
 
static MapType Map (Scalar *data, Index size)
 
static ConstMapType Map (const Scalar *data, Index rows, Index cols)
 
static MapType Map (Scalar *data, Index rows, Index cols)
 
static ConstAlignedMapType MapAligned (const Scalar *data)
 
static AlignedMapType MapAligned (Scalar *data)
 
static ConstAlignedMapType MapAligned (const Scalar *data, Index size)
 
static AlignedMapType MapAligned (Scalar *data, Index size)
 
static ConstAlignedMapType MapAligned (const Scalar *data, Index rows, Index cols)
 
static AlignedMapType MapAligned (Scalar *data, Index rows, Index cols)
 
template<int Outer, int Inner>
static StridedConstMapType< Stride< Outer, Inner > >::type Map (const Scalar *data, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedMapType< Stride< Outer, Inner > >::type Map (Scalar *data, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedConstMapType< Stride< Outer, Inner > >::type Map (const Scalar *data, Index size, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedMapType< Stride< Outer, Inner > >::type Map (Scalar *data, Index size, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedConstMapType< Stride< Outer, Inner > >::type Map (const Scalar *data, Index rows, Index cols, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedMapType< Stride< Outer, Inner > >::type Map (Scalar *data, Index rows, Index cols, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedConstAlignedMapType< Stride< Outer, Inner > >::type MapAligned (const Scalar *data, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedAlignedMapType< Stride< Outer, Inner > >::type MapAligned (Scalar *data, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedConstAlignedMapType< Stride< Outer, Inner > >::type MapAligned (const Scalar *data, Index size, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedAlignedMapType< Stride< Outer, Inner > >::type MapAligned (Scalar *data, Index size, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedConstAlignedMapType< Stride< Outer, Inner > >::type MapAligned (const Scalar *data, Index rows, Index cols, const Stride< Outer, Inner > &stride)
 
template<int Outer, int Inner>
static StridedAlignedMapType< Stride< Outer, Inner > >::type MapAligned (Scalar *data, Index rows, Index cols, const Stride< Outer, Inner > &stride)
 

Protected Member Functions

template<typename OtherDerived >
EIGEN_STRONG_INLINE void _resize_to_match (const EigenBase< OtherDerived > &other)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived & _set (const DenseBase< OtherDerived > &other)
 Copies the value of the expression other into *this with automatic resizing. More...
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE void _set_selector (const OtherDerived &other, const internal::true_type &)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE void _set_selector (const OtherDerived &other, const internal::false_type &)
 
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived & _set_noalias (const DenseBase< OtherDerived > &other)
 
template<typename T0 , typename T1 >
EIGEN_STRONG_INLINE void _init2 (Index nbRows, Index nbCols, typename internal::enable_if< Base::SizeAtCompileTime!=2, T0 >::type *=0)
 
template<typename T0 , typename T1 >
EIGEN_STRONG_INLINE void _init2 (const Scalar &val0, const Scalar &val1, typename internal::enable_if< Base::SizeAtCompileTime==2, T0 >::type *=0)
 
template<typename OtherDerived >
void _swap (DenseBase< OtherDerived > const &other)
 

Protected Attributes

DenseStorage< Scalar, Base::MaxSizeAtCompileTime, Base::RowsAtCompileTime, Base::ColsAtCompileTime, Options > m_storage
 

Friends

template<typename PlainObjectType , int MapOptions, typename StrideType >
class Eigen::Map
 
class Eigen::Map< Derived, Unaligned >
 
class Eigen::Map< const Derived, Unaligned >
 
class Eigen::Map< Derived, Aligned >
 
class Eigen::Map< const Derived, Aligned >
 
template<typename MatrixTypeA , typename MatrixTypeB , bool SwapPointers>
struct internal::matrix_swap_impl
 

Detailed Description

template<typename Derived>
class Eigen::PlainObjectBase< Derived >

Dense storage base class for matrices and arrays.

This class can be extended with the help of the plugin mechanism described on the page Customizing/Extending Eigen by defining the preprocessor symbol EIGEN_PLAINOBJECTBASE_PLUGIN.

See also
The class hierarchy

Constructor & Destructor Documentation

§ PlainObjectBase()

template<typename Derived>
template<typename OtherDerived >
EIGEN_STRONG_INLINE Eigen::PlainObjectBase< Derived >::PlainObjectBase ( const EigenBase< OtherDerived > &  other)
inline
See also
MatrixBase::operator=(const EigenBase<OtherDerived>&)

Member Function Documentation

§ _set()

template<typename Derived>
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived& Eigen::PlainObjectBase< Derived >::_set ( const DenseBase< OtherDerived > &  other)
inlineprotected

Copies the value of the expression other into *this with automatic resizing.

*this might be resized to match the dimensions of other. If *this was a null matrix (not already initialized), it will be initialized.

Note that copying a row-vector into a vector (and conversely) is allowed. The resizing, if any, is then done in the appropriate way so that row-vectors remain row-vectors and vectors remain vectors.

See also
operator=(const MatrixBase<OtherDerived>&), _set_noalias()

§ conservativeResize() [1/4]

template<typename Derived>
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::conservativeResize ( Index  nbRows,
Index  nbCols 
)
inline

Resizes the matrix to rows x cols while leaving old values untouched.

The method is intended for matrices of dynamic size. If you only want to change the number of rows and/or of columns, you can use conservativeResize(NoChange_t, Index) or conservativeResize(Index, NoChange_t).

Matrices are resized relative to the top-left element. In case values need to be appended to the matrix they will be uninitialized.

§ conservativeResize() [2/4]

template<typename Derived>
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::conservativeResize ( Index  nbRows,
NoChange_t   
)
inline

Resizes the matrix to rows x cols while leaving old values untouched.

As opposed to conservativeResize(Index rows, Index cols), this version leaves the number of columns unchanged.

In case the matrix is growing, new rows will be uninitialized.

§ conservativeResize() [3/4]

template<typename Derived>
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::conservativeResize ( NoChange_t  ,
Index  nbCols 
)
inline

Resizes the matrix to rows x cols while leaving old values untouched.

As opposed to conservativeResize(Index rows, Index cols), this version leaves the number of rows unchanged.

In case the matrix is growing, new columns will be uninitialized.

§ conservativeResize() [4/4]

template<typename Derived>
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::conservativeResize ( Index  size)
inline

Resizes the vector to size while retaining old values.

. This method does not work for partially dynamic matrices when the static dimension is anything other than 1. For example it will not work with Matrix<double, 2, Dynamic>.

When values are appended, they will be uninitialized.

§ conservativeResizeLike()

template<typename Derived>
template<typename OtherDerived >
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::conservativeResizeLike ( const DenseBase< OtherDerived > &  other)
inline

Resizes the matrix to rows x cols of other, while leaving old values untouched.

The method is intended for matrices of dynamic size. If you only want to change the number of rows and/or of columns, you can use conservativeResize(NoChange_t, Index) or conservativeResize(Index, NoChange_t).

Matrices are resized relative to the top-left element. In case values need to be appended to the matrix they will copied from other.

§ data() [1/2]

template<typename Derived>
EIGEN_STRONG_INLINE const Scalar* Eigen::PlainObjectBase< Derived >::data ( ) const
inline
Returns
a const pointer to the data array of this matrix

§ data() [2/2]

template<typename Derived>
EIGEN_STRONG_INLINE Scalar* Eigen::PlainObjectBase< Derived >::data ( )
inline
Returns
a pointer to the data array of this matrix

§ lazyAssign()

template<typename Derived>
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived& Eigen::PlainObjectBase< Derived >::lazyAssign ( const DenseBase< OtherDerived > &  other)
inline
See also
MatrixBase::lazyAssign()

§ operator=() [1/2]

template<typename Derived>
EIGEN_STRONG_INLINE Derived& Eigen::PlainObjectBase< Derived >::operator= ( const PlainObjectBase< Derived > &  other)
inline

This is a special case of the templated operator=.

Its purpose is to prevent a default operator= from hiding the templated operator=.

§ operator=() [2/2]

template<typename Derived>
template<typename OtherDerived >
EIGEN_STRONG_INLINE Derived& Eigen::PlainObjectBase< Derived >::operator= ( const EigenBase< OtherDerived > &  other)
inline

§ resize() [1/4]

template<typename Derived>
EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::resize ( Index  nbRows,
Index  nbCols 
)
inline

Resizes *this to a rows x cols matrix.

This method is intended for dynamic-size matrices, although it is legal to call it on any matrix as long as fixed dimensions are left unchanged. If you only want to change the number of rows and/or of columns, you can use resize(NoChange_t, Index), resize(Index, NoChange_t).

If the current number of coefficients of *this exactly matches the product rows * cols, then no memory allocation is performed and the current values are left unchanged. In all other cases, including shrinking, the data is reallocated and all previous values are lost.

Example:

Output: 

See also
resize(Index) for vectors, resize(NoChange_t, Index), resize(Index, NoChange_t) 








§ resize() [2/4]








template<typename Derived> 



  

  
      

        

          void Eigen::PlainObjectBase< Derived >::resize 
          (
          Index 
          size)
          
        

      

  		
  
inline  
  







Resizes *this to a vector of length size. 


. This method does not work for partially dynamic matrices when the static dimension is anything other than 1. For example it will not work with Matrix<double, 2, Dynamic>.


Example: 
 Output: 
See also
resize(Index,Index), resize(NoChange_t, Index), resize(Index, NoChange_t) 








§ resize() [3/4]








template<typename Derived> 



  

  
      

        

          void Eigen::PlainObjectBase< Derived >::resize 
          (
          NoChange_t 
          , 
        

        

          
          
          Index 
          nbCols 
        

        

          
          )
          
        

      

  		
  
inline  
  







Resizes the matrix, changing only the number of columns. 


For the parameter of type NoChange_t, just pass the special value NoChange as in the example below.


Example: 
 Output: 
See also
resize(Index,Index) 








§ resize() [4/4]








template<typename Derived> 



  

  
      

        

          void Eigen::PlainObjectBase< Derived >::resize 
          (
          Index 
          nbRows, 
        

        

          
          
          NoChange_t 
           
        

        

          
          )
          
        

      

  		
  
inline  
  







Resizes the matrix, changing only the number of rows. 


For the parameter of type NoChange_t, just pass the special value NoChange as in the example below.


Example: 
 Output: 
See also
resize(Index,Index) 








§ resizeLike()








template<typename Derived> 



template<typename OtherDerived > 



  

  
      

        

          EIGEN_STRONG_INLINE void Eigen::PlainObjectBase< Derived >::resizeLike 
          (
          const EigenBase< OtherDerived > & 
          _other)
          
        

      

  		
  
inline  
  







Resizes *this to have the same dimensions as other. 


Takes care of doing all the checking that's needed.


Note that copying a row-vector into a vector (and conversely) is allowed. The resizing, if any, is then done in the appropriate way so that row-vectors remain row-vectors and vectors remain vectors. 








§ setConstant() [1/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setConstant 
          (
          Index 
          size, 
        

        

          
          
          const Scalar & 
          val 
        

        

          
          )
          
        

      





Resizes to the given size, and sets all coefficients in this expression to the given value. 


Example: 
 Output: 
See also
MatrixBase::setConstant(const Scalar&), setConstant(Index,Index,const Scalar&), class CwiseNullaryOp, MatrixBase::Constant(const Scalar&) 








§ setConstant() [2/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setConstant 
          (
          Index 
          nbRows, 
        

        

          
          
          Index 
          nbCols, 
        

        

          
          
          const Scalar & 
          val 
        

        

          
          )
          
        

      





Resizes to the given size, and sets all coefficients in this expression to the given value. 


Parameters

  

    
nbRowsthe new number of rows 

    
nbColsthe new number of columns 

    
valthe value to which all coefficients are set

  

  




Example: 
 Output: 
See also
MatrixBase::setConstant(const Scalar&), setConstant(Index,const Scalar&), class CwiseNullaryOp, MatrixBase::Constant(const Scalar&) 








§ setOnes() [1/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setOnes 
          (
          Index 
          newSize)
          
        

      





Resizes to the given newSize, and sets all coefficients in this expression to one. 


Example: 
 Output: 
See also
MatrixBase::setOnes(), setOnes(Index,Index), class CwiseNullaryOp, MatrixBase::Ones() 








§ setOnes() [2/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setOnes 
          (
          Index 
          nbRows, 
        

        

          
          
          Index 
          nbCols 
        

        

          
          )
          
        

      





Resizes to the given size, and sets all coefficients in this expression to one. 


Parameters

  

    
nbRowsthe new number of rows 

    
nbColsthe new number of columns

  

  




Example: 
 Output: 
See also
MatrixBase::setOnes(), setOnes(Index), class CwiseNullaryOp, MatrixBase::Ones() 








§ setRandom() [1/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setRandom 
          (
          Index 
          newSize)
          
        

      





Resizes to the given newSize, and sets all coefficients in this expression to random values. 


Example: 
 Output: 
See also
MatrixBase::setRandom(), setRandom(Index,Index), class CwiseNullaryOp, MatrixBase::Random() 








§ setRandom() [2/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setRandom 
          (
          Index 
          nbRows, 
        

        

          
          
          Index 
          nbCols 
        

        

          
          )
          
        

      





Resizes to the given size, and sets all coefficients in this expression to random values. 


Parameters

  

    
nbRowsthe new number of rows 

    
nbColsthe new number of columns

  

  




Example: 
 Output: 
See also
MatrixBase::setRandom(), setRandom(Index), class CwiseNullaryOp, MatrixBase::Random() 








§ setZero() [1/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setZero 
          (
          Index 
          newSize)
          
        

      





Resizes to the given size, and sets all coefficients in this expression to zero. 


Example: 
 Output: 
See also
DenseBase::setZero(), setZero(Index,Index), class CwiseNullaryOp, DenseBase::Zero() 








§ setZero() [2/2]








template<typename Derived > 

      

        

          EIGEN_STRONG_INLINE Derived & Eigen::PlainObjectBase< Derived >::setZero 
          (
          Index 
          nbRows, 
        

        

          
          
          Index 
          nbCols 
        

        

          
          )
          
        

      





Resizes to the given size, and sets all coefficients in this expression to zero. 


Parameters

  

    
nbRowsthe new number of rows 

    
nbColsthe new number of columns

  

  




Example: 
 Output: 
See also
DenseBase::setZero(), setZero(Index), class CwiseNullaryOp, DenseBase::Zero() 







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