MatrixType | the type of the object in which we are taking the main diagonal |
This class represents an expression of the main diagonal of a square matrix. It is the return type of MatrixBase::diagonal() and most of the time this is the only way it is used.
Public Member Functions | |
const Scalar | coeff (int index) const |
const Scalar | coeff (int row, int) const |
Scalar & | coeffRef (int index) |
Scalar & | coeffRef (int row, int) |
int | cols () const |
DiagonalCoeffs (const MatrixType &matrix) | |
int | rows () const |
Protected Attributes | |
const MatrixType::Nested | m_matrix |
const Scalar coeff | ( | int | index | ) | const [inline] |
Short version: don't use this function, use operator[](int) const instead.
Long version: this function is similar to operator[](int) const , but without the assertion. Use this for limiting the performance cost of debugging code when doing repeated coefficient access. Only use this when it is guaranteed that the parameter index is in range.
If EIGEN_INTERNAL_DEBUGGING is defined, an assertion will be made, making this function equivalent to operator[](int) const .
Reimplemented from MatrixBase.
const Scalar coeff | ( | int | row, | |
int | col | |||
) | const [inline] |
Short version: don't use this function, use operator()(int,int) const instead.
Long version: this function is similar to operator()(int,int) const , but without the assertion. Use this for limiting the performance cost of debugging code when doing repeated coefficient access. Only use this when it is guaranteed that the parameters row and col are in range.
If EIGEN_INTERNAL_DEBUGGING is defined, an assertion will be made, making this function equivalent to operator()(int,int) const .
Reimplemented from MatrixBase.
Scalar& coeffRef | ( | int | index | ) | [inline] |
Short version: don't use this function, use operator[](int) instead.
Long version: this function is similar to operator[](int), but without the assertion. Use this for limiting the performance cost of debugging code when doing repeated coefficient access. Only use this when it is guaranteed that the parameters row and col are in range.
If EIGEN_INTERNAL_DEBUGGING is defined, an assertion will be made, making this function equivalent to operator[](int).
Reimplemented from MatrixBase.
Scalar& coeffRef | ( | int | row, | |
int | col | |||
) | [inline] |
Short version: don't use this function, use operator()(int,int) instead.
Long version: this function is similar to operator()(int,int), but without the assertion. Use this for limiting the performance cost of debugging code when doing repeated coefficient access. Only use this when it is guaranteed that the parameters row and col are in range.
If EIGEN_INTERNAL_DEBUGGING is defined, an assertion will be made, making this function equivalent to operator()(int,int).
Reimplemented from MatrixBase.
int cols | ( | void | ) | const [inline] |
int rows | ( | void | ) | const [inline] |