mirror of
https://gitlab.com/libeigen/eigen.git
synced 2026-04-10 11:34:33 +08:00
introduce ei_xxx_return_value and ei_xxx_impl for xxx in solve,kernel,impl
put them in a new internal 'misc' directory
This commit is contained in:
Benoit Jacob
6
Eigen/src/misc/CMakeLists.txt
Normal file
6
Eigen/src/misc/CMakeLists.txt
Normal file
@@ -0,0 +1,6 @@
|
||||
FILE(GLOB Eigen_misc_SRCS "*.h")
|
||||
|
||||
INSTALL(FILES
|
||||
${Eigen_misc_SRCS}
|
||||
DESTINATION ${INCLUDE_INSTALL_DIR}/Eigen/src/misc COMPONENT Devel
|
||||
)
|
||||
72
Eigen/src/misc/Image.h
Normal file
72
Eigen/src/misc/Image.h
Normal file
@@ -0,0 +1,72 @@
|
||||
// This file is part of Eigen, a lightweight C++ template library
|
||||
// for linear algebra.
|
||||
//
|
||||
// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
|
||||
//
|
||||
// Eigen is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 3 of the License, or (at your option) any later version.
|
||||
//
|
||||
// Alternatively, you can redistribute it and/or
|
||||
// modify it under the terms of the GNU General Public License as
|
||||
// published by the Free Software Foundation; either version 2 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License and a copy of the GNU General Public License along with
|
||||
// Eigen. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#ifndef EIGEN_MISC_IMAGE_H
|
||||
#define EIGEN_MISC_IMAGE_H
|
||||
|
||||
/** \class ei_image_return_value
|
||||
*
|
||||
*/
|
||||
template<typename DecompositionType>
|
||||
struct ei_traits<ei_image_return_value<DecompositionType> >
|
||||
{
|
||||
typedef typename DecompositionType::MatrixType MatrixType;
|
||||
typedef Matrix<
|
||||
typename MatrixType::Scalar,
|
||||
MatrixType::RowsAtCompileTime, // the image is a subspace of the destination space, whose
|
||||
// dimension is the number of rows of the original matrix
|
||||
Dynamic, // we don't know at compile time the dimension of the image (the rank)
|
||||
MatrixType::Options,
|
||||
MatrixType::MaxRowsAtCompileTime, // the image matrix will consist of columns from the original matrix,
|
||||
MatrixType::MaxColsAtCompileTime // so it has the same number of rows and at most as many columns.
|
||||
> ReturnMatrixType;
|
||||
};
|
||||
|
||||
template<typename _DecompositionType> struct ei_image_return_value
|
||||
: public ReturnByValue<ei_image_return_value<_DecompositionType> >
|
||||
{
|
||||
typedef _DecompositionType DecompositionType;
|
||||
typedef typename DecompositionType::MatrixType MatrixType;
|
||||
|
||||
const DecompositionType& m_dec;
|
||||
int m_rank, m_cols;
|
||||
const MatrixType& m_originalMatrix;
|
||||
|
||||
ei_image_return_value(const DecompositionType& dec, const MatrixType& originalMatrix)
|
||||
: m_dec(dec), m_rank(dec.rank()),
|
||||
m_cols(m_rank == 0 ? 1 : m_rank),
|
||||
m_originalMatrix(originalMatrix)
|
||||
{}
|
||||
|
||||
inline int rows() const { return m_dec.rows(); }
|
||||
inline int cols() const { return m_cols; }
|
||||
|
||||
template<typename Dest> inline void evalTo(Dest& dst) const
|
||||
{
|
||||
static_cast<const ei_image_impl<DecompositionType, Dest> *>
|
||||
(this)->evalTo(dst);
|
||||
}
|
||||
};
|
||||
|
||||
#endif // EIGEN_MISC_IMAGE_H
|
||||
71
Eigen/src/misc/Kernel.h
Normal file
71
Eigen/src/misc/Kernel.h
Normal file
@@ -0,0 +1,71 @@
|
||||
// This file is part of Eigen, a lightweight C++ template library
|
||||
// for linear algebra.
|
||||
//
|
||||
// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
|
||||
//
|
||||
// Eigen is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 3 of the License, or (at your option) any later version.
|
||||
//
|
||||
// Alternatively, you can redistribute it and/or
|
||||
// modify it under the terms of the GNU General Public License as
|
||||
// published by the Free Software Foundation; either version 2 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License and a copy of the GNU General Public License along with
|
||||
// Eigen. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#ifndef EIGEN_MISC_KERNEL_H
|
||||
#define EIGEN_MISC_KERNEL_H
|
||||
|
||||
/** \class ei_kernel_return_value
|
||||
*
|
||||
*/
|
||||
template<typename DecompositionType>
|
||||
struct ei_traits<ei_kernel_return_value<DecompositionType> >
|
||||
{
|
||||
typedef typename DecompositionType::MatrixType MatrixType;
|
||||
typedef Matrix<
|
||||
typename MatrixType::Scalar,
|
||||
MatrixType::ColsAtCompileTime, // the number of rows in the "kernel matrix"
|
||||
// is the number of cols of the original matrix
|
||||
// so that the product "matrix * kernel = zero" makes sense
|
||||
Dynamic, // we don't know at compile-time the dimension of the kernel
|
||||
MatrixType::Options,
|
||||
MatrixType::MaxColsAtCompileTime, // see explanation for 2nd template parameter
|
||||
MatrixType::MaxColsAtCompileTime // the kernel is a subspace of the domain space,
|
||||
// whose dimension is the number of columns of the original matrix
|
||||
> ReturnMatrixType;
|
||||
};
|
||||
|
||||
template<typename _DecompositionType> struct ei_kernel_return_value
|
||||
: public ReturnByValue<ei_kernel_return_value<_DecompositionType> >
|
||||
{
|
||||
typedef _DecompositionType DecompositionType;
|
||||
const DecompositionType& m_dec;
|
||||
int m_rank, m_cols;
|
||||
|
||||
ei_kernel_return_value(const DecompositionType& dec)
|
||||
: m_dec(dec),
|
||||
m_rank(dec.rank()),
|
||||
m_cols(m_rank==dec.cols() ? 1 : dec.cols() - m_rank)
|
||||
{}
|
||||
|
||||
inline int rows() const { return m_dec.cols(); }
|
||||
inline int cols() const { return m_cols; }
|
||||
|
||||
template<typename Dest> inline void evalTo(Dest& dst) const
|
||||
{
|
||||
static_cast<const ei_kernel_impl<DecompositionType, Dest> *>
|
||||
(this)->evalTo(dst);
|
||||
}
|
||||
};
|
||||
|
||||
#endif // EIGEN_MISC_KERNEL_H
|
||||
65
Eigen/src/misc/Solve.h
Normal file
65
Eigen/src/misc/Solve.h
Normal file
@@ -0,0 +1,65 @@
|
||||
// This file is part of Eigen, a lightweight C++ template library
|
||||
// for linear algebra.
|
||||
//
|
||||
// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
|
||||
//
|
||||
// Eigen is free software; you can redistribute it and/or
|
||||
// modify it under the terms of the GNU Lesser General Public
|
||||
// License as published by the Free Software Foundation; either
|
||||
// version 3 of the License, or (at your option) any later version.
|
||||
//
|
||||
// Alternatively, you can redistribute it and/or
|
||||
// modify it under the terms of the GNU General Public License as
|
||||
// published by the Free Software Foundation; either version 2 of
|
||||
// the License, or (at your option) any later version.
|
||||
//
|
||||
// Eigen is distributed in the hope that it will be useful, but WITHOUT ANY
|
||||
// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
|
||||
// FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License or the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU Lesser General Public
|
||||
// License and a copy of the GNU General Public License along with
|
||||
// Eigen. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#ifndef EIGEN_MISC_SOLVE_H
|
||||
#define EIGEN_MISC_SOLVE_H
|
||||
|
||||
/** \class ei_solve_return_value
|
||||
*
|
||||
*/
|
||||
template<typename DecompositionType, typename Rhs>
|
||||
struct ei_traits<ei_solve_return_value<DecompositionType, Rhs> >
|
||||
{
|
||||
typedef typename DecompositionType::MatrixType MatrixType;
|
||||
typedef Matrix<typename Rhs::Scalar,
|
||||
MatrixType::ColsAtCompileTime,
|
||||
Rhs::ColsAtCompileTime,
|
||||
Rhs::PlainMatrixType::Options,
|
||||
MatrixType::MaxColsAtCompileTime,
|
||||
Rhs::MaxColsAtCompileTime> ReturnMatrixType;
|
||||
};
|
||||
|
||||
template<typename _DecompositionType, typename Rhs> struct ei_solve_return_value
|
||||
: public ReturnByValue<ei_solve_return_value<_DecompositionType, Rhs> >
|
||||
{
|
||||
typedef typename ei_cleantype<typename Rhs::Nested>::type RhsNestedCleaned;
|
||||
typedef _DecompositionType DecompositionType;
|
||||
const DecompositionType& m_dec;
|
||||
const typename Rhs::Nested m_rhs;
|
||||
|
||||
ei_solve_return_value(const DecompositionType& dec, const Rhs& rhs)
|
||||
: m_dec(dec), m_rhs(rhs)
|
||||
{}
|
||||
|
||||
inline int rows() const { return m_dec.cols(); }
|
||||
inline int cols() const { return m_rhs.cols(); }
|
||||
|
||||
template<typename Dest> inline void evalTo(Dest& dst) const
|
||||
{
|
||||
static_cast<const ei_solve_impl<DecompositionType, RhsNestedCleaned, Dest> *>
|
||||
(this)->evalTo(dst);
|
||||
}
|
||||
};
|
||||
|
||||
#endif // EIGEN_MISC_SOLVE_H
|
||||
Reference in New Issue
Block a user