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Prusa Slicer 2.6.0
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Base class of SVD algorithms. More...
#include <src/eigen/Eigen/src/SVD/SVDBase.h>
Inheritance diagram for Eigen::SVDBase< Derived >:
Collaboration diagram for Eigen::SVDBase< Derived >:Public Types | |
| enum | { RowsAtCompileTime = MatrixType::RowsAtCompileTime , ColsAtCompileTime = MatrixType::ColsAtCompileTime , DiagSizeAtCompileTime = EIGEN_SIZE_MIN_PREFER_DYNAMIC(RowsAtCompileTime,ColsAtCompileTime) , MaxRowsAtCompileTime = MatrixType::MaxRowsAtCompileTime , MaxColsAtCompileTime = MatrixType::MaxColsAtCompileTime , MaxDiagSizeAtCompileTime = EIGEN_SIZE_MIN_PREFER_FIXED(MaxRowsAtCompileTime,MaxColsAtCompileTime) , MatrixOptions = MatrixType::Options } |
| typedef internal::traits< Derived >::MatrixType | MatrixType |
| typedef MatrixType::Scalar | Scalar |
| typedef NumTraits< typenameMatrixType::Scalar >::Real | RealScalar |
| typedef MatrixType::StorageIndex | StorageIndex |
| typedef Eigen::Index | Index |
| typedef Matrix< Scalar, RowsAtCompileTime, RowsAtCompileTime, MatrixOptions, MaxRowsAtCompileTime, MaxRowsAtCompileTime > | MatrixUType |
| typedef Matrix< Scalar, ColsAtCompileTime, ColsAtCompileTime, MatrixOptions, MaxColsAtCompileTime, MaxColsAtCompileTime > | MatrixVType |
| typedef internal::plain_diag_type< MatrixType, RealScalar >::type | SingularValuesType |
Public Member Functions | |
| Derived & | derived () |
| const Derived & | derived () const |
| const MatrixUType & | matrixU () const |
| const MatrixVType & | matrixV () const |
| const SingularValuesType & | singularValues () const |
| Index | nonzeroSingularValues () const |
| Index | rank () const |
| Derived & | setThreshold (const RealScalar &threshold) |
| Derived & | setThreshold (Default_t) |
| RealScalar | threshold () const |
| bool | computeU () const |
| bool | computeV () const |
| Index | rows () const |
| Index | cols () const |
| template<typename Rhs > | |
| const Solve< Derived, Rhs > | solve (const MatrixBase< Rhs > &b) const |
| template<typename RhsType , typename DstType > | |
| EIGEN_DEVICE_FUNC void | _solve_impl (const RhsType &rhs, DstType &dst) const |
| template<typename RhsType , typename DstType > | |
| void | _solve_impl (const RhsType &rhs, DstType &dst) const |
Protected Member Functions | |
| bool | allocate (Index rows, Index cols, unsigned int computationOptions) |
| SVDBase () | |
| Default Constructor. | |
Static Protected Member Functions | |
| static void | check_template_parameters () |
Protected Attributes | |
| MatrixUType | m_matrixU |
| MatrixVType | m_matrixV |
| SingularValuesType | m_singularValues |
| bool | m_isInitialized |
| bool | m_isAllocated |
| bool | m_usePrescribedThreshold |
| bool | m_computeFullU |
| bool | m_computeThinU |
| bool | m_computeFullV |
| bool | m_computeThinV |
| unsigned int | m_computationOptions |
| Index | m_nonzeroSingularValues |
| Index | m_rows |
| Index | m_cols |
| Index | m_diagSize |
| RealScalar | m_prescribedThreshold |
Base class of SVD algorithms.
| Derived | the type of the actual SVD decomposition |
SVD decomposition consists in decomposing any n-by-p matrix A as a product
where U is a n-by-n unitary, V is a p-by-p unitary, and S is a n-by-p real positive matrix which is zero outside of its main diagonal; the diagonal entries of S are known as the singular values of A and the columns of U and V are known as the left and right singular vectors of A respectively.
Singular values are always sorted in decreasing order.
You can ask for only thin U or V to be computed, meaning the following. In case of a rectangular n-by-p matrix, letting m be the smaller value among n and p, there are only m singular vectors; the remaining columns of U and V do not correspond to actual singular vectors. Asking for thin U or V means asking for only their m first columns to be formed. So U is then a n-by-m matrix, and V is then a p-by-m matrix. Notice that thin U and V are all you need for (least squares) solving.
If the input matrix has inf or nan coefficients, the result of the computation is undefined, but the computation is guaranteed to terminate in finite (and reasonable) time.
| typedef Eigen::Index Eigen::SVDBase< Derived >::Index |
| typedef internal::traits<Derived>::MatrixType Eigen::SVDBase< Derived >::MatrixType |
| typedef Matrix<Scalar, RowsAtCompileTime, RowsAtCompileTime, MatrixOptions, MaxRowsAtCompileTime, MaxRowsAtCompileTime> Eigen::SVDBase< Derived >::MatrixUType |
| typedef Matrix<Scalar, ColsAtCompileTime, ColsAtCompileTime, MatrixOptions, MaxColsAtCompileTime, MaxColsAtCompileTime> Eigen::SVDBase< Derived >::MatrixVType |
| typedef NumTraits<typenameMatrixType::Scalar>::Real Eigen::SVDBase< Derived >::RealScalar |
| typedef MatrixType::Scalar Eigen::SVDBase< Derived >::Scalar |
| typedef internal::plain_diag_type<MatrixType,RealScalar>::type Eigen::SVDBase< Derived >::SingularValuesType |
| typedef MatrixType::StorageIndex Eigen::SVDBase< Derived >::StorageIndex |
| anonymous enum |
| Enumerator | |
|---|---|
| RowsAtCompileTime | |
| ColsAtCompileTime | |
| DiagSizeAtCompileTime | |
| MaxRowsAtCompileTime | |
| MaxColsAtCompileTime | |
| MaxDiagSizeAtCompileTime | |
| MatrixOptions | |
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Default Constructor.
Default constructor of SVDBase
References Eigen::SVDBase< Derived >::check_template_parameters().
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| DstType & | dst | ||
| ) | const |
| void Eigen::SVDBase< Derived >::_solve_impl | ( | const RhsType & | rhs, |
| DstType & | dst | ||
| ) | const |
References eigen_assert.
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References Eigen::ComputeFullU, Eigen::ComputeFullV, Eigen::ComputeThinU, Eigen::ComputeThinV, Eigen::Dynamic, eigen_assert, and EIGEN_IMPLIES.
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References EIGEN_STATIC_ASSERT_NON_INTEGER.
Referenced by Eigen::SVDBase< Derived >::SVDBase().
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References Eigen::SVDBase< Derived >::m_cols.
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References Eigen::SVDBase< Derived >::m_computeFullU, and Eigen::SVDBase< Derived >::m_computeThinU.
Referenced by Eigen::SVDBase< Derived >::matrixU(), and Eigen::SVDBase< Derived >::solve().
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References Eigen::SVDBase< Derived >::m_computeFullV, and Eigen::SVDBase< Derived >::m_computeThinV.
Referenced by Eigen::SVDBase< Derived >::matrixV(), and Eigen::SVDBase< Derived >::solve().
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Referenced by Eigen::SVDBase< Derived >::setThreshold(), Eigen::SVDBase< Derived >::setThreshold(), and Eigen::SVDBase< Derived >::solve().
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For the SVD decomposition of a n-by-p matrix, letting m be the minimum of n and p, the U matrix is n-by-n if you asked for ComputeFullU , and is n-by-m if you asked for ComputeThinU .
The m first columns of U are the left singular vectors of the matrix being decomposed.
This method asserts that you asked for U to be computed.
References Eigen::SVDBase< Derived >::computeU(), eigen_assert, Eigen::SVDBase< Derived >::m_isInitialized, and Eigen::SVDBase< Derived >::m_matrixU.
Referenced by Slic3r::Geometry::TransformationSVD::TransformationSVD(), Eigen::BDCSVD< _MatrixType >::compute(), igl::Frame_field_deformer::compute_optimal_rotations(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeRotationScaling(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeScalingRotation(), igl::frame_to_cross_field(), igl::min_quad_dense_precompute(), igl::orth(), igl::pinv(), igl::polar_svd(), igl::copyleft::comiso::FrameInterpolator::PolarDecomposition(), igl::shapeup_regular_face_projection(), and Eigen::umeyama().
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For the SVD decomposition of a n-by-p matrix, letting m be the minimum of n and p, the V matrix is p-by-p if you asked for ComputeFullV , and is p-by-m if you asked for ComputeThinV .
The m first columns of V are the right singular vectors of the matrix being decomposed.
This method asserts that you asked for V to be computed.
References Eigen::SVDBase< Derived >::computeV(), eigen_assert, Eigen::SVDBase< Derived >::m_isInitialized, and Eigen::SVDBase< Derived >::m_matrixV.
Referenced by Slic3r::Geometry::TransformationSVD::TransformationSVD(), Eigen::BDCSVD< _MatrixType >::compute(), igl::Frame_field_deformer::compute_idealWarp(), igl::Frame_field_deformer::compute_optimal_rotations(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeRotationScaling(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeScalingRotation(), igl::frame_to_cross_field(), igl::min_quad_dense_precompute(), igl::null(), igl::pinv(), igl::polar_svd(), igl::copyleft::comiso::FrameInterpolator::PolarDecomposition(), Eigen::QuaternionBase< Derived >::setFromTwoVectors(), igl::shapeup_regular_face_projection(), Eigen::Hyperplane< _Scalar, _AmbientDim, _Options >::Through(), and Eigen::umeyama().
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References eigen_assert, Eigen::SVDBase< Derived >::m_isInitialized, and Eigen::SVDBase< Derived >::m_nonzeroSingularValues.
Referenced by Eigen::BDCSVD< _MatrixType >::compute().
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*this is the SVD.References eigen_assert, Eigen::SVDBase< Derived >::m_isInitialized, Eigen::SVDBase< Derived >::m_nonzeroSingularValues, Eigen::SVDBase< Derived >::m_singularValues, and Eigen::SVDBase< Derived >::threshold().
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References Eigen::SVDBase< Derived >::m_rows.
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Allows to prescribe a threshold to be used by certain methods, such as rank() and solve(), which need to determine when singular values are to be considered nonzero. This is not used for the SVD decomposition itself.
When it needs to get the threshold value, Eigen calls threshold(). The default is NumTraits<Scalar>::epsilon()
| threshold | The new value to use as the threshold. |
A singular value will be considered nonzero if its value is strictly greater than
If you want to come back to the default behavior, call setThreshold(Default_t)
References Eigen::SVDBase< Derived >::derived(), Eigen::SVDBase< Derived >::m_prescribedThreshold, Eigen::SVDBase< Derived >::m_usePrescribedThreshold, and Eigen::SVDBase< Derived >::threshold().
Referenced by igl::null().
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Allows to come back to the default behavior, letting Eigen use its default formula for determining the threshold.
You should pass the special object Eigen::Default as parameter here.
See the documentation of setThreshold(const RealScalar&).
References Eigen::SVDBase< Derived >::derived(), and Eigen::SVDBase< Derived >::m_usePrescribedThreshold.
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For the SVD decomposition of a n-by-p matrix, letting m be the minimum of n and p, the returned vector has size m. Singular values are always sorted in decreasing order.
References eigen_assert, Eigen::SVDBase< Derived >::m_isInitialized, and Eigen::SVDBase< Derived >::m_singularValues.
Referenced by Slic3r::Geometry::TransformationSVD::TransformationSVD(), Eigen::BDCSVD< _MatrixType >::compute(), igl::Frame_field_deformer::compute_idealWarp(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeRotationScaling(), Eigen::Transform< _Scalar, _Dim, _Mode, _Options >::computeScalingRotation(), Eigen::BDCSVD< _MatrixType >::computeSVDofM(), igl::min_quad_dense_precompute(), igl::null(), igl::orth(), igl::pinv(), igl::polar_svd(), igl::copyleft::comiso::FrameInterpolator::PolarDecomposition(), and Eigen::umeyama().
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| b | the right-hand-side of the equation to solve. |
References Eigen::SVDBase< Derived >::computeU(), Eigen::SVDBase< Derived >::computeV(), Eigen::SVDBase< Derived >::derived(), eigen_assert, and Eigen::SVDBase< Derived >::m_isInitialized.
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Returns the threshold that will be used by certain methods such as rank().
See the documentation of setThreshold(const RealScalar&).
References eigen_assert, Eigen::SVDBase< Derived >::m_diagSize, Eigen::SVDBase< Derived >::m_isInitialized, Eigen::SVDBase< Derived >::m_prescribedThreshold, and Eigen::SVDBase< Derived >::m_usePrescribedThreshold.
Referenced by Eigen::SVDBase< Derived >::rank(), and Eigen::SVDBase< Derived >::setThreshold().
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Referenced by Eigen::SVDBase< Derived >::cols().
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Referenced by Eigen::SVDBase< Derived >::computeU().
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Referenced by Eigen::SVDBase< Derived >::computeV().
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Referenced by Eigen::SVDBase< Derived >::computeU().
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Referenced by Eigen::SVDBase< Derived >::computeV().
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Referenced by Eigen::SVDBase< Derived >::threshold().
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Referenced by Eigen::SVDBase< Derived >::matrixU(), Eigen::SVDBase< Derived >::matrixV(), Eigen::SVDBase< Derived >::nonzeroSingularValues(), Eigen::SVDBase< Derived >::rank(), Eigen::SVDBase< Derived >::singularValues(), Eigen::SVDBase< Derived >::solve(), and Eigen::SVDBase< Derived >::threshold().
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Referenced by Eigen::SVDBase< Derived >::matrixU().
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Referenced by Eigen::SVDBase< Derived >::matrixV().
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Referenced by Eigen::SVDBase< Derived >::nonzeroSingularValues(), and Eigen::SVDBase< Derived >::rank().
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Referenced by Eigen::SVDBase< Derived >::setThreshold(), and Eigen::SVDBase< Derived >::threshold().
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Referenced by Eigen::SVDBase< Derived >::rows().
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Referenced by Eigen::SVDBase< Derived >::rank(), and Eigen::SVDBase< Derived >::singularValues().
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