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authorGravatar Gael Guennebaud <g.gael@free.fr>2009-12-22 22:51:08 +0100
committerGravatar Gael Guennebaud <g.gael@free.fr>2009-12-22 22:51:08 +0100
commiteaaba30cacf078335ad41314bf1e4ce993f0b3b4 (patch)
tree61156273b56dc19fc4e661a5aeb42d8e6112a307 /Eigen/src/Core/DiagonalMatrix.h
parente182e9c6166840b8db44e0be459a2e26d26fda0f (diff)
parenteeec7d842e05394703c42e7569230835f7842089 (diff)
merge with default branch
Diffstat (limited to 'Eigen/src/Core/DiagonalMatrix.h')
-rw-r--r--Eigen/src/Core/DiagonalMatrix.h51
1 files changed, 34 insertions, 17 deletions
diff --git a/Eigen/src/Core/DiagonalMatrix.h b/Eigen/src/Core/DiagonalMatrix.h
index 6f93737ff..bd23b2e09 100644
--- a/Eigen/src/Core/DiagonalMatrix.h
+++ b/Eigen/src/Core/DiagonalMatrix.h
@@ -26,6 +26,7 @@
#ifndef EIGEN_DIAGONALMATRIX_H
#define EIGEN_DIAGONALMATRIX_H
+#ifndef EIGEN_PARSED_BY_DOXYGEN
template<typename Derived>
class DiagonalBase : public AnyMatrixBase<Derived>
{
@@ -44,19 +45,17 @@ class DiagonalBase : public AnyMatrixBase<Derived>
typedef Matrix<Scalar, RowsAtCompileTime, ColsAtCompileTime, 0, MaxRowsAtCompileTime, MaxColsAtCompileTime> DenseMatrixType;
- #ifndef EIGEN_PARSED_BY_DOXYGEN
inline const Derived& derived() const { return *static_cast<const Derived*>(this); }
inline Derived& derived() { return *static_cast<Derived*>(this); }
- #endif // not EIGEN_PARSED_BY_DOXYGEN
DenseMatrixType toDenseMatrix() const { return derived(); }
template<typename DenseDerived>
void evalTo(MatrixBase<DenseDerived> &other) const;
template<typename DenseDerived>
- void addToDense(MatrixBase<DenseDerived> &other) const
+ void addTo(MatrixBase<DenseDerived> &other) const
{ other.diagonal() += diagonal(); }
template<typename DenseDerived>
- void subToDense(MatrixBase<DenseDerived> &other) const
+ void subTo(MatrixBase<DenseDerived> &other) const
{ other.diagonal() -= diagonal(); }
inline const DiagonalVectorType& diagonal() const { return derived().diagonal(); }
@@ -83,16 +82,18 @@ void DiagonalBase<Derived>::evalTo(MatrixBase<DenseDerived> &other) const
other.setZero();
other.diagonal() = diagonal();
}
+#endif
/** \class DiagonalMatrix
- * \nonstableyet
*
* \brief Represents a diagonal matrix with its storage
*
* \param _Scalar the type of coefficients
- * \param _Size the dimension of the matrix, or Dynamic
+ * \param SizeAtCompileTime the dimension of the matrix, or Dynamic
+ * \param MaxSizeAtCompileTime the dimension of the matrix, or Dynamic. This parameter is optional and defaults
+ * to SizeAtCompileTime. Most of the time, you do not need to specify it.
*
- * \sa class Matrix
+ * \sa class DiagonalWrapper
*/
template<typename _Scalar, int SizeAtCompileTime, int MaxSizeAtCompileTime>
struct ei_traits<DiagonalMatrix<_Scalar,SizeAtCompileTime,MaxSizeAtCompileTime> >
@@ -106,10 +107,11 @@ class DiagonalMatrix
: public DiagonalBase<DiagonalMatrix<_Scalar,SizeAtCompileTime,MaxSizeAtCompileTime> >
{
public:
-
+ #ifndef EIGEN_PARSED_BY_DOXYGEN
typedef typename ei_traits<DiagonalMatrix>::DiagonalVectorType DiagonalVectorType;
typedef const DiagonalMatrix& Nested;
typedef _Scalar Scalar;
+ #endif
protected:
@@ -117,7 +119,9 @@ class DiagonalMatrix
public:
+ /** const version of diagonal(). */
inline const DiagonalVectorType& diagonal() const { return m_diagonal; }
+ /** \returns a reference to the stored vector of diagonal coefficients. */
inline DiagonalVectorType& diagonal() { return m_diagonal; }
/** Default constructor without initialization */
@@ -126,23 +130,27 @@ class DiagonalMatrix
/** Constructs a diagonal matrix with given dimension */
inline DiagonalMatrix(int dim) : m_diagonal(dim) {}
- /** 2D only */
+ /** 2D constructor. */
inline DiagonalMatrix(const Scalar& x, const Scalar& y) : m_diagonal(x,y) {}
- /** 3D only */
+ /** 3D constructor. */
inline DiagonalMatrix(const Scalar& x, const Scalar& y, const Scalar& z) : m_diagonal(x,y,z) {}
+ /** Copy constructor. */
template<typename OtherDerived>
inline DiagonalMatrix(const DiagonalBase<OtherDerived>& other) : m_diagonal(other.diagonal()) {}
+ #ifndef EIGEN_PARSED_BY_DOXYGEN
/** copy constructor. prevent a default copy constructor from hiding the other templated constructor */
inline DiagonalMatrix(const DiagonalMatrix& other) : m_diagonal(other.diagonal()) {}
+ #endif
/** generic constructor from expression of the diagonal coefficients */
template<typename OtherDerived>
explicit inline DiagonalMatrix(const MatrixBase<OtherDerived>& other) : m_diagonal(other)
{}
+ /** Copy operator. */
template<typename OtherDerived>
DiagonalMatrix& operator=(const DiagonalBase<OtherDerived>& other)
{
@@ -150,6 +158,7 @@ class DiagonalMatrix
return *this;
}
+ #ifndef EIGEN_PARSED_BY_DOXYGEN
/** This is a special case of the templated operator=. Its purpose is to
* prevent a default operator= from hiding the templated operator=.
*/
@@ -158,23 +167,28 @@ class DiagonalMatrix
m_diagonal = other.m_diagonal();
return *this;
}
+ #endif
+ /** Resizes to given size. */
inline void resize(int size) { m_diagonal.resize(size); }
+ /** Sets all coefficients to zero. */
inline void setZero() { m_diagonal.setZero(); }
+ /** Resizes and sets all coefficients to zero. */
inline void setZero(int size) { m_diagonal.setZero(size); }
+ /** Sets this matrix to be the identity matrix of the current size. */
inline void setIdentity() { m_diagonal.setOnes(); }
+ /** Sets this matrix to be the identity matrix of the given size. */
inline void setIdentity(int size) { m_diagonal.setOnes(size); }
};
/** \class DiagonalWrapper
- * \nonstableyet
*
* \brief Expression of a diagonal matrix
*
* \param _DiagonalVectorType the type of the vector of diagonal coefficients
*
- * This class is an expression of a diagonal matrix with given vector of diagonal
- * coefficients. It is the return type of MatrixBase::asDiagonal()
+ * This class is an expression of a diagonal matrix, but not storing its own vector of diagonal coefficients,
+ * instead wrapping an existing vector expression. It is the return type of MatrixBase::asDiagonal()
* and most of the time this is the only way that it is used.
*
* \sa class DiagonalMatrix, class DiagonalBase, MatrixBase::asDiagonal()
@@ -198,18 +212,22 @@ class DiagonalWrapper
: public DiagonalBase<DiagonalWrapper<_DiagonalVectorType> >, ei_no_assignment_operator
{
public:
+ #ifndef EIGEN_PARSED_BY_DOXYGEN
typedef _DiagonalVectorType DiagonalVectorType;
typedef DiagonalWrapper Nested;
+ #endif
+ /** Constructor from expression of diagonal coefficients to wrap. */
inline DiagonalWrapper(const DiagonalVectorType& diagonal) : m_diagonal(diagonal) {}
+
+ /** \returns a const reference to the wrapped expression of diagonal coefficients. */
const DiagonalVectorType& diagonal() const { return m_diagonal; }
protected:
const typename DiagonalVectorType::Nested m_diagonal;
};
-/** \nonstableyet
- * \returns a pseudo-expression of a diagonal matrix with *this as vector of diagonal coefficients
+/** \returns a pseudo-expression of a diagonal matrix with *this as vector of diagonal coefficients
*
* \only_for_vectors
*
@@ -225,8 +243,7 @@ MatrixBase<Derived>::asDiagonal() const
return derived();
}
-/** \nonstableyet
- * \returns true if *this is approximately equal to a diagonal matrix,
+/** \returns true if *this is approximately equal to a diagonal matrix,
* within the precision given by \a prec.
*
* Example: \include MatrixBase_isDiagonal.cpp