| // This file is part of Eigen, a lightweight C++ template library |
| // for linear algebra. |
| // |
| // Copyright (C) 2008-2010 Gael Guennebaud <gael.guennebaud@inria.fr> |
| // Copyright (C) 2006-2010 Benoit Jacob <jacob.benoit.1@gmail.com> |
| // |
| // This Source Code Form is subject to the terms of the Mozilla |
| // Public License v. 2.0. If a copy of the MPL was not distributed |
| // with this file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| |
| |
| #ifndef EIGEN_PARSED_BY_DOXYGEN |
| |
| /** \internal expression type of a column */ |
| typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, 1, !IsRowMajor> ColXpr; |
| typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, 1, !IsRowMajor> ConstColXpr; |
| /** \internal expression type of a row */ |
| typedef Block<Derived, 1, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> RowXpr; |
| typedef const Block<const Derived, 1, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> ConstRowXpr; |
| /** \internal expression type of a block of whole columns */ |
| typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, Dynamic, !IsRowMajor> ColsBlockXpr; |
| typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, Dynamic, !IsRowMajor> ConstColsBlockXpr; |
| /** \internal expression type of a block of whole rows */ |
| typedef Block<Derived, Dynamic, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> RowsBlockXpr; |
| typedef const Block<const Derived, Dynamic, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> ConstRowsBlockXpr; |
| /** \internal expression type of a block of whole columns */ |
| template<int N> struct NColsBlockXpr { typedef Block<Derived, internal::traits<Derived>::RowsAtCompileTime, N, !IsRowMajor> Type; }; |
| template<int N> struct ConstNColsBlockXpr { typedef const Block<const Derived, internal::traits<Derived>::RowsAtCompileTime, N, !IsRowMajor> Type; }; |
| /** \internal expression type of a block of whole rows */ |
| template<int N> struct NRowsBlockXpr { typedef Block<Derived, N, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> Type; }; |
| template<int N> struct ConstNRowsBlockXpr { typedef const Block<const Derived, N, internal::traits<Derived>::ColsAtCompileTime, IsRowMajor> Type; }; |
| |
| typedef VectorBlock<Derived> SegmentReturnType; |
| typedef const VectorBlock<const Derived> ConstSegmentReturnType; |
| template<int Size> struct FixedSegmentReturnType { typedef VectorBlock<Derived, Size> Type; }; |
| template<int Size> struct ConstFixedSegmentReturnType { typedef const VectorBlock<const Derived, Size> Type; }; |
| |
| #endif // not EIGEN_PARSED_BY_DOXYGEN |
| |
| /** \returns a dynamic-size expression of a block in *this. |
| * |
| * \param startRow the first row in the block |
| * \param startCol the first column in the block |
| * \param blockRows the number of rows in the block |
| * \param blockCols the number of columns in the block |
| * |
| * Example: \include MatrixBase_block_int_int_int_int.cpp |
| * Output: \verbinclude MatrixBase_block_int_int_int_int.out |
| * |
| * \note Even though the returned expression has dynamic size, in the case |
| * when it is applied to a fixed-size matrix, it inherits a fixed maximal size, |
| * which means that evaluating it does not cause a dynamic memory allocation. |
| * |
| * \sa class Block, block(Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived> block(Index startRow, Index startCol, Index blockRows, Index blockCols) |
| { |
| return Block<Derived>(derived(), startRow, startCol, blockRows, blockCols); |
| } |
| |
| /** This is the const version of block(Index,Index,Index,Index). */ |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived> block(Index startRow, Index startCol, Index blockRows, Index blockCols) const |
| { |
| return Block<const Derived>(derived(), startRow, startCol, blockRows, blockCols); |
| } |
| |
| |
| |
| |
| /** \returns a dynamic-size expression of a top-right corner of *this. |
| * |
| * \param cRows the number of rows in the corner |
| * \param cCols the number of columns in the corner |
| * |
| * Example: \include MatrixBase_topRightCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_topRightCorner_int_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived> topRightCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived>(derived(), 0, cols() - cCols, cRows, cCols); |
| } |
| |
| /** This is the const version of topRightCorner(Index, Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived> topRightCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived>(derived(), 0, cols() - cCols, cRows, cCols); |
| } |
| |
| /** \returns an expression of a fixed-size top-right corner of *this. |
| * |
| * \tparam CRows the number of rows in the corner |
| * \tparam CCols the number of columns in the corner |
| * |
| * Example: \include MatrixBase_template_int_int_topRightCorner.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_topRightCorner.out |
| * |
| * \sa class Block, block<int,int>(Index,Index) |
| */ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived, CRows, CCols> topRightCorner() |
| { |
| return Block<Derived, CRows, CCols>(derived(), 0, cols() - CCols); |
| } |
| |
| /** This is the const version of topRightCorner<int, int>().*/ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived, CRows, CCols> topRightCorner() const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), 0, cols() - CCols); |
| } |
| |
| /** \returns an expression of a top-right corner of *this. |
| * |
| * \tparam CRows number of rows in corner as specified at compile-time |
| * \tparam CCols number of columns in corner as specified at compile-time |
| * \param cRows number of rows in corner as specified at run-time |
| * \param cCols number of columns in corner as specified at run-time |
| * |
| * This function is mainly useful for corners where the number of rows is specified at compile-time |
| * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time |
| * information should not contradict. In other words, \a cRows should equal \a CRows unless |
| * \a CRows is \a Dynamic, and the same for the number of columns. |
| * |
| * Example: \include MatrixBase_template_int_int_topRightCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_topRightCorner_int_int.out |
| * |
| * \sa class Block |
| */ |
| template<int CRows, int CCols> |
| inline Block<Derived, CRows, CCols> topRightCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived, CRows, CCols>(derived(), 0, cols() - cCols, cRows, cCols); |
| } |
| |
| /** This is the const version of topRightCorner<int, int>(Index, Index).*/ |
| template<int CRows, int CCols> |
| inline const Block<const Derived, CRows, CCols> topRightCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), 0, cols() - cCols, cRows, cCols); |
| } |
| |
| |
| |
| /** \returns a dynamic-size expression of a top-left corner of *this. |
| * |
| * \param cRows the number of rows in the corner |
| * \param cCols the number of columns in the corner |
| * |
| * Example: \include MatrixBase_topLeftCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_topLeftCorner_int_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived> topLeftCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived>(derived(), 0, 0, cRows, cCols); |
| } |
| |
| /** This is the const version of topLeftCorner(Index, Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived> topLeftCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived>(derived(), 0, 0, cRows, cCols); |
| } |
| |
| /** \returns an expression of a fixed-size top-left corner of *this. |
| * |
| * The template parameters CRows and CCols are the number of rows and columns in the corner. |
| * |
| * Example: \include MatrixBase_template_int_int_topLeftCorner.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_topLeftCorner.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived, CRows, CCols> topLeftCorner() |
| { |
| return Block<Derived, CRows, CCols>(derived(), 0, 0); |
| } |
| |
| /** This is the const version of topLeftCorner<int, int>().*/ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived, CRows, CCols> topLeftCorner() const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), 0, 0); |
| } |
| |
| /** \returns an expression of a top-left corner of *this. |
| * |
| * \tparam CRows number of rows in corner as specified at compile-time |
| * \tparam CCols number of columns in corner as specified at compile-time |
| * \param cRows number of rows in corner as specified at run-time |
| * \param cCols number of columns in corner as specified at run-time |
| * |
| * This function is mainly useful for corners where the number of rows is specified at compile-time |
| * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time |
| * information should not contradict. In other words, \a cRows should equal \a CRows unless |
| * \a CRows is \a Dynamic, and the same for the number of columns. |
| * |
| * Example: \include MatrixBase_template_int_int_topLeftCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_topLeftCorner_int_int.out |
| * |
| * \sa class Block |
| */ |
| template<int CRows, int CCols> |
| inline Block<Derived, CRows, CCols> topLeftCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived, CRows, CCols>(derived(), 0, 0, cRows, cCols); |
| } |
| |
| /** This is the const version of topLeftCorner<int, int>(Index, Index).*/ |
| template<int CRows, int CCols> |
| inline const Block<const Derived, CRows, CCols> topLeftCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), 0, 0, cRows, cCols); |
| } |
| |
| |
| |
| /** \returns a dynamic-size expression of a bottom-right corner of *this. |
| * |
| * \param cRows the number of rows in the corner |
| * \param cCols the number of columns in the corner |
| * |
| * Example: \include MatrixBase_bottomRightCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_bottomRightCorner_int_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived> bottomRightCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); |
| } |
| |
| /** This is the const version of bottomRightCorner(Index, Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived> bottomRightCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); |
| } |
| |
| /** \returns an expression of a fixed-size bottom-right corner of *this. |
| * |
| * The template parameters CRows and CCols are the number of rows and columns in the corner. |
| * |
| * Example: \include MatrixBase_template_int_int_bottomRightCorner.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived, CRows, CCols> bottomRightCorner() |
| { |
| return Block<Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols); |
| } |
| |
| /** This is the const version of bottomRightCorner<int, int>().*/ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived, CRows, CCols> bottomRightCorner() const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), rows() - CRows, cols() - CCols); |
| } |
| |
| /** \returns an expression of a bottom-right corner of *this. |
| * |
| * \tparam CRows number of rows in corner as specified at compile-time |
| * \tparam CCols number of columns in corner as specified at compile-time |
| * \param cRows number of rows in corner as specified at run-time |
| * \param cCols number of columns in corner as specified at run-time |
| * |
| * This function is mainly useful for corners where the number of rows is specified at compile-time |
| * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time |
| * information should not contradict. In other words, \a cRows should equal \a CRows unless |
| * \a CRows is \a Dynamic, and the same for the number of columns. |
| * |
| * Example: \include MatrixBase_template_int_int_bottomRightCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_bottomRightCorner_int_int.out |
| * |
| * \sa class Block |
| */ |
| template<int CRows, int CCols> |
| inline Block<Derived, CRows, CCols> bottomRightCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived, CRows, CCols>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); |
| } |
| |
| /** This is the const version of bottomRightCorner<int, int>(Index, Index).*/ |
| template<int CRows, int CCols> |
| inline const Block<const Derived, CRows, CCols> bottomRightCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), rows() - cRows, cols() - cCols, cRows, cCols); |
| } |
| |
| |
| |
| /** \returns a dynamic-size expression of a bottom-left corner of *this. |
| * |
| * \param cRows the number of rows in the corner |
| * \param cCols the number of columns in the corner |
| * |
| * Example: \include MatrixBase_bottomLeftCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_bottomLeftCorner_int_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived> bottomLeftCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived>(derived(), rows() - cRows, 0, cRows, cCols); |
| } |
| |
| /** This is the const version of bottomLeftCorner(Index, Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived> bottomLeftCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived>(derived(), rows() - cRows, 0, cRows, cCols); |
| } |
| |
| /** \returns an expression of a fixed-size bottom-left corner of *this. |
| * |
| * The template parameters CRows and CCols are the number of rows and columns in the corner. |
| * |
| * Example: \include MatrixBase_template_int_int_bottomLeftCorner.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived, CRows, CCols> bottomLeftCorner() |
| { |
| return Block<Derived, CRows, CCols>(derived(), rows() - CRows, 0); |
| } |
| |
| /** This is the const version of bottomLeftCorner<int, int>().*/ |
| template<int CRows, int CCols> |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived, CRows, CCols> bottomLeftCorner() const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), rows() - CRows, 0); |
| } |
| |
| /** \returns an expression of a bottom-left corner of *this. |
| * |
| * \tparam CRows number of rows in corner as specified at compile-time |
| * \tparam CCols number of columns in corner as specified at compile-time |
| * \param cRows number of rows in corner as specified at run-time |
| * \param cCols number of columns in corner as specified at run-time |
| * |
| * This function is mainly useful for corners where the number of rows is specified at compile-time |
| * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time |
| * information should not contradict. In other words, \a cRows should equal \a CRows unless |
| * \a CRows is \a Dynamic, and the same for the number of columns. |
| * |
| * Example: \include MatrixBase_template_int_int_bottomLeftCorner_int_int.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_bottomLeftCorner_int_int.out |
| * |
| * \sa class Block |
| */ |
| template<int CRows, int CCols> |
| inline Block<Derived, CRows, CCols> bottomLeftCorner(Index cRows, Index cCols) |
| { |
| return Block<Derived, CRows, CCols>(derived(), rows() - cRows, 0, cRows, cCols); |
| } |
| |
| /** This is the const version of bottomLeftCorner<int, int>(Index, Index).*/ |
| template<int CRows, int CCols> |
| inline const Block<const Derived, CRows, CCols> bottomLeftCorner(Index cRows, Index cCols) const |
| { |
| return Block<const Derived, CRows, CCols>(derived(), rows() - cRows, 0, cRows, cCols); |
| } |
| |
| |
| |
| /** \returns a block consisting of the top rows of *this. |
| * |
| * \param n the number of rows in the block |
| * |
| * Example: \include MatrixBase_topRows_int.cpp |
| * Output: \verbinclude MatrixBase_topRows_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline RowsBlockXpr topRows(Index n) |
| { |
| return RowsBlockXpr(derived(), 0, 0, n, cols()); |
| } |
| |
| /** This is the const version of topRows(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstRowsBlockXpr topRows(Index n) const |
| { |
| return ConstRowsBlockXpr(derived(), 0, 0, n, cols()); |
| } |
| |
| /** \returns a block consisting of the top rows of *this. |
| * |
| * \tparam N the number of rows in the block as specified at compile-time |
| * \param n the number of rows in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_topRows.cpp |
| * Output: \verbinclude MatrixBase_template_int_topRows.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NRowsBlockXpr<N>::Type topRows(Index n = N) |
| { |
| return typename NRowsBlockXpr<N>::Type(derived(), 0, 0, n, cols()); |
| } |
| |
| /** This is the const version of topRows<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNRowsBlockXpr<N>::Type topRows(Index n = N) const |
| { |
| return typename ConstNRowsBlockXpr<N>::Type(derived(), 0, 0, n, cols()); |
| } |
| |
| |
| |
| /** \returns a block consisting of the bottom rows of *this. |
| * |
| * \param n the number of rows in the block |
| * |
| * Example: \include MatrixBase_bottomRows_int.cpp |
| * Output: \verbinclude MatrixBase_bottomRows_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline RowsBlockXpr bottomRows(Index n) |
| { |
| return RowsBlockXpr(derived(), rows() - n, 0, n, cols()); |
| } |
| |
| /** This is the const version of bottomRows(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstRowsBlockXpr bottomRows(Index n) const |
| { |
| return ConstRowsBlockXpr(derived(), rows() - n, 0, n, cols()); |
| } |
| |
| /** \returns a block consisting of the bottom rows of *this. |
| * |
| * \tparam N the number of rows in the block as specified at compile-time |
| * \param n the number of rows in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_bottomRows.cpp |
| * Output: \verbinclude MatrixBase_template_int_bottomRows.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NRowsBlockXpr<N>::Type bottomRows(Index n = N) |
| { |
| return typename NRowsBlockXpr<N>::Type(derived(), rows() - n, 0, n, cols()); |
| } |
| |
| /** This is the const version of bottomRows<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNRowsBlockXpr<N>::Type bottomRows(Index n = N) const |
| { |
| return typename ConstNRowsBlockXpr<N>::Type(derived(), rows() - n, 0, n, cols()); |
| } |
| |
| |
| |
| /** \returns a block consisting of a range of rows of *this. |
| * |
| * \param startRow the index of the first row in the block |
| * \param n the number of rows in the block |
| * |
| * Example: \include DenseBase_middleRows_int.cpp |
| * Output: \verbinclude DenseBase_middleRows_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline RowsBlockXpr middleRows(Index startRow, Index n) |
| { |
| return RowsBlockXpr(derived(), startRow, 0, n, cols()); |
| } |
| |
| /** This is the const version of middleRows(Index,Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstRowsBlockXpr middleRows(Index startRow, Index n) const |
| { |
| return ConstRowsBlockXpr(derived(), startRow, 0, n, cols()); |
| } |
| |
| /** \returns a block consisting of a range of rows of *this. |
| * |
| * \tparam N the number of rows in the block as specified at compile-time |
| * \param startRow the index of the first row in the block |
| * \param n the number of rows in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include DenseBase_template_int_middleRows.cpp |
| * Output: \verbinclude DenseBase_template_int_middleRows.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) |
| { |
| return typename NRowsBlockXpr<N>::Type(derived(), startRow, 0, n, cols()); |
| } |
| |
| /** This is the const version of middleRows<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNRowsBlockXpr<N>::Type middleRows(Index startRow, Index n = N) const |
| { |
| return typename ConstNRowsBlockXpr<N>::Type(derived(), startRow, 0, n, cols()); |
| } |
| |
| |
| |
| /** \returns a block consisting of the left columns of *this. |
| * |
| * \param n the number of columns in the block |
| * |
| * Example: \include MatrixBase_leftCols_int.cpp |
| * Output: \verbinclude MatrixBase_leftCols_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline ColsBlockXpr leftCols(Index n) |
| { |
| return ColsBlockXpr(derived(), 0, 0, rows(), n); |
| } |
| |
| /** This is the const version of leftCols(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstColsBlockXpr leftCols(Index n) const |
| { |
| return ConstColsBlockXpr(derived(), 0, 0, rows(), n); |
| } |
| |
| /** \returns a block consisting of the left columns of *this. |
| * |
| * \tparam N the number of columns in the block as specified at compile-time |
| * \param n the number of columns in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_leftCols.cpp |
| * Output: \verbinclude MatrixBase_template_int_leftCols.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NColsBlockXpr<N>::Type leftCols(Index n = N) |
| { |
| return typename NColsBlockXpr<N>::Type(derived(), 0, 0, rows(), n); |
| } |
| |
| /** This is the const version of leftCols<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNColsBlockXpr<N>::Type leftCols(Index n = N) const |
| { |
| return typename ConstNColsBlockXpr<N>::Type(derived(), 0, 0, rows(), n); |
| } |
| |
| |
| |
| /** \returns a block consisting of the right columns of *this. |
| * |
| * \param n the number of columns in the block |
| * |
| * Example: \include MatrixBase_rightCols_int.cpp |
| * Output: \verbinclude MatrixBase_rightCols_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline ColsBlockXpr rightCols(Index n) |
| { |
| return ColsBlockXpr(derived(), 0, cols() - n, rows(), n); |
| } |
| |
| /** This is the const version of rightCols(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstColsBlockXpr rightCols(Index n) const |
| { |
| return ConstColsBlockXpr(derived(), 0, cols() - n, rows(), n); |
| } |
| |
| /** \returns a block consisting of the right columns of *this. |
| * |
| * \tparam N the number of columns in the block as specified at compile-time |
| * \param n the number of columns in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_rightCols.cpp |
| * Output: \verbinclude MatrixBase_template_int_rightCols.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NColsBlockXpr<N>::Type rightCols(Index n = N) |
| { |
| return typename NColsBlockXpr<N>::Type(derived(), 0, cols() - n, rows(), n); |
| } |
| |
| /** This is the const version of rightCols<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNColsBlockXpr<N>::Type rightCols(Index n = N) const |
| { |
| return typename ConstNColsBlockXpr<N>::Type(derived(), 0, cols() - n, rows(), n); |
| } |
| |
| |
| |
| /** \returns a block consisting of a range of columns of *this. |
| * |
| * \param startCol the index of the first column in the block |
| * \param numCols the number of columns in the block |
| * |
| * Example: \include DenseBase_middleCols_int.cpp |
| * Output: \verbinclude DenseBase_middleCols_int.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline ColsBlockXpr middleCols(Index startCol, Index numCols) |
| { |
| return ColsBlockXpr(derived(), 0, startCol, rows(), numCols); |
| } |
| |
| /** This is the const version of middleCols(Index,Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstColsBlockXpr middleCols(Index startCol, Index numCols) const |
| { |
| return ConstColsBlockXpr(derived(), 0, startCol, rows(), numCols); |
| } |
| |
| /** \returns a block consisting of a range of columns of *this. |
| * |
| * \tparam N the number of columns in the block as specified at compile-time |
| * \param startCol the index of the first column in the block |
| * \param n the number of columns in the block as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include DenseBase_template_int_middleCols.cpp |
| * Output: \verbinclude DenseBase_template_int_middleCols.out |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename NColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) |
| { |
| return typename NColsBlockXpr<N>::Type(derived(), 0, startCol, rows(), n); |
| } |
| |
| /** This is the const version of middleCols<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstNColsBlockXpr<N>::Type middleCols(Index startCol, Index n = N) const |
| { |
| return typename ConstNColsBlockXpr<N>::Type(derived(), 0, startCol, rows(), n); |
| } |
| |
| |
| |
| /** \returns a fixed-size expression of a block in *this. |
| * |
| * The template parameters \a BlockRows and \a BlockCols are the number of |
| * rows and columns in the block. |
| * |
| * \param startRow the first row in the block |
| * \param startCol the first column in the block |
| * |
| * Example: \include MatrixBase_block_int_int.cpp |
| * Output: \verbinclude MatrixBase_block_int_int.out |
| * |
| * \note since block is a templated member, the keyword template has to be used |
| * if the matrix type is also a template parameter: \code m.template block<3,3>(1,1); \endcode |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int BlockRows, int BlockCols> |
| EIGEN_DEVICE_FUNC |
| inline Block<Derived, BlockRows, BlockCols> block(Index startRow, Index startCol) |
| { |
| return Block<Derived, BlockRows, BlockCols>(derived(), startRow, startCol); |
| } |
| |
| /** This is the const version of block<>(Index, Index). */ |
| template<int BlockRows, int BlockCols> |
| EIGEN_DEVICE_FUNC |
| inline const Block<const Derived, BlockRows, BlockCols> block(Index startRow, Index startCol) const |
| { |
| return Block<const Derived, BlockRows, BlockCols>(derived(), startRow, startCol); |
| } |
| |
| /** \returns an expression of a block in *this. |
| * |
| * \tparam BlockRows number of rows in block as specified at compile-time |
| * \tparam BlockCols number of columns in block as specified at compile-time |
| * \param startRow the first row in the block |
| * \param startCol the first column in the block |
| * \param blockRows number of rows in block as specified at run-time |
| * \param blockCols number of columns in block as specified at run-time |
| * |
| * This function is mainly useful for blocks where the number of rows is specified at compile-time |
| * and the number of columns is specified at run-time, or vice versa. The compile-time and run-time |
| * information should not contradict. In other words, \a blockRows should equal \a BlockRows unless |
| * \a BlockRows is \a Dynamic, and the same for the number of columns. |
| * |
| * Example: \include MatrixBase_template_int_int_block_int_int_int_int.cpp |
| * Output: \verbinclude MatrixBase_template_int_int_block_int_int_int_int.cpp |
| * |
| * \sa class Block, block(Index,Index,Index,Index) |
| */ |
| template<int BlockRows, int BlockCols> |
| inline Block<Derived, BlockRows, BlockCols> block(Index startRow, Index startCol, |
| Index blockRows, Index blockCols) |
| { |
| return Block<Derived, BlockRows, BlockCols>(derived(), startRow, startCol, blockRows, blockCols); |
| } |
| |
| /** This is the const version of block<>(Index, Index, Index, Index). */ |
| template<int BlockRows, int BlockCols> |
| inline const Block<const Derived, BlockRows, BlockCols> block(Index startRow, Index startCol, |
| Index blockRows, Index blockCols) const |
| { |
| return Block<const Derived, BlockRows, BlockCols>(derived(), startRow, startCol, blockRows, blockCols); |
| } |
| |
| /** \returns an expression of the \a i-th column of *this. Note that the numbering starts at 0. |
| * |
| * Example: \include MatrixBase_col.cpp |
| * Output: \verbinclude MatrixBase_col.out |
| * |
| * \sa row(), class Block */ |
| EIGEN_DEVICE_FUNC |
| inline ColXpr col(Index i) |
| { |
| return ColXpr(derived(), i); |
| } |
| |
| /** This is the const version of col(). */ |
| EIGEN_DEVICE_FUNC |
| inline ConstColXpr col(Index i) const |
| { |
| return ConstColXpr(derived(), i); |
| } |
| |
| /** \returns an expression of the \a i-th row of *this. Note that the numbering starts at 0. |
| * |
| * Example: \include MatrixBase_row.cpp |
| * Output: \verbinclude MatrixBase_row.out |
| * |
| * \sa col(), class Block */ |
| EIGEN_DEVICE_FUNC |
| inline RowXpr row(Index i) |
| { |
| return RowXpr(derived(), i); |
| } |
| |
| /** This is the const version of row(). */ |
| EIGEN_DEVICE_FUNC |
| inline ConstRowXpr row(Index i) const |
| { |
| return ConstRowXpr(derived(), i); |
| } |
| |
| /** \returns a dynamic-size expression of a segment (i.e. a vector block) in *this. |
| * |
| * \only_for_vectors |
| * |
| * \param start the first coefficient in the segment |
| * \param n the number of coefficients in the segment |
| * |
| * Example: \include MatrixBase_segment_int_int.cpp |
| * Output: \verbinclude MatrixBase_segment_int_int.out |
| * |
| * \note Even though the returned expression has dynamic size, in the case |
| * when it is applied to a fixed-size vector, it inherits a fixed maximal size, |
| * which means that evaluating it does not cause a dynamic memory allocation. |
| * |
| * \sa class Block, segment(Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline SegmentReturnType segment(Index start, Index n) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return SegmentReturnType(derived(), start, n); |
| } |
| |
| |
| /** This is the const version of segment(Index,Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstSegmentReturnType segment(Index start, Index n) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return ConstSegmentReturnType(derived(), start, n); |
| } |
| |
| /** \returns a dynamic-size expression of the first coefficients of *this. |
| * |
| * \only_for_vectors |
| * |
| * \param n the number of coefficients in the segment |
| * |
| * Example: \include MatrixBase_start_int.cpp |
| * Output: \verbinclude MatrixBase_start_int.out |
| * |
| * \note Even though the returned expression has dynamic size, in the case |
| * when it is applied to a fixed-size vector, it inherits a fixed maximal size, |
| * which means that evaluating it does not cause a dynamic memory allocation. |
| * |
| * \sa class Block, block(Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline SegmentReturnType head(Index n) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return SegmentReturnType(derived(), 0, n); |
| } |
| |
| /** This is the const version of head(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstSegmentReturnType head(Index n) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return ConstSegmentReturnType(derived(), 0, n); |
| } |
| |
| /** \returns a dynamic-size expression of the last coefficients of *this. |
| * |
| * \only_for_vectors |
| * |
| * \param n the number of coefficients in the segment |
| * |
| * Example: \include MatrixBase_end_int.cpp |
| * Output: \verbinclude MatrixBase_end_int.out |
| * |
| * \note Even though the returned expression has dynamic size, in the case |
| * when it is applied to a fixed-size vector, it inherits a fixed maximal size, |
| * which means that evaluating it does not cause a dynamic memory allocation. |
| * |
| * \sa class Block, block(Index,Index) |
| */ |
| EIGEN_DEVICE_FUNC |
| inline SegmentReturnType tail(Index n) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return SegmentReturnType(derived(), this->size() - n, n); |
| } |
| |
| /** This is the const version of tail(Index).*/ |
| EIGEN_DEVICE_FUNC |
| inline ConstSegmentReturnType tail(Index n) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return ConstSegmentReturnType(derived(), this->size() - n, n); |
| } |
| |
| /** \returns a fixed-size expression of a segment (i.e. a vector block) in \c *this |
| * |
| * \only_for_vectors |
| * |
| * \tparam N the number of coefficients in the segment as specified at compile-time |
| * \param start the index of the first element in the segment |
| * \param n the number of coefficients in the segment as specified at compile-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_segment.cpp |
| * Output: \verbinclude MatrixBase_template_int_segment.out |
| * |
| * \sa class Block |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename FixedSegmentReturnType<N>::Type segment(Index start, Index n = N) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename FixedSegmentReturnType<N>::Type(derived(), start, n); |
| } |
| |
| /** This is the const version of segment<int>(Index).*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstFixedSegmentReturnType<N>::Type segment(Index start, Index n = N) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename ConstFixedSegmentReturnType<N>::Type(derived(), start, n); |
| } |
| |
| /** \returns a fixed-size expression of the first coefficients of *this. |
| * |
| * \only_for_vectors |
| * |
| * \tparam N the number of coefficients in the segment as specified at compile-time |
| * \param n the number of coefficients in the segment as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_start.cpp |
| * Output: \verbinclude MatrixBase_template_int_start.out |
| * |
| * \sa class Block |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename FixedSegmentReturnType<N>::Type head(Index n = N) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename FixedSegmentReturnType<N>::Type(derived(), 0, n); |
| } |
| |
| /** This is the const version of head<int>().*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstFixedSegmentReturnType<N>::Type head(Index n = N) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename ConstFixedSegmentReturnType<N>::Type(derived(), 0, n); |
| } |
| |
| /** \returns a fixed-size expression of the last coefficients of *this. |
| * |
| * \only_for_vectors |
| * |
| * \tparam N the number of coefficients in the segment as specified at compile-time |
| * \param n the number of coefficients in the segment as specified at run-time |
| * |
| * The compile-time and run-time information should not contradict. In other words, |
| * \a n should equal \a N unless \a N is \a Dynamic. |
| * |
| * Example: \include MatrixBase_template_int_end.cpp |
| * Output: \verbinclude MatrixBase_template_int_end.out |
| * |
| * \sa class Block |
| */ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename FixedSegmentReturnType<N>::Type tail(Index n = N) |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename FixedSegmentReturnType<N>::Type(derived(), size() - n); |
| } |
| |
| /** This is the const version of tail<int>.*/ |
| template<int N> |
| EIGEN_DEVICE_FUNC |
| inline typename ConstFixedSegmentReturnType<N>::Type tail(Index n = N) const |
| { |
| EIGEN_STATIC_ASSERT_VECTOR_ONLY(Derived) |
| return typename ConstFixedSegmentReturnType<N>::Type(derived(), size() - n); |
| } |