g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition Class Reference

Sub-classing Eigen's SimplicialLLT to perform ordering with a given ordering. More...

#include <linear_solver_eigen.h>

Inheritance diagram for g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition:

Collaboration diagram for g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition:

Public Member Functions
	CholeskyDecomposition ()
void	analyzePatternWithPermutation (SparseMatrix &a, const PermutationMatrix &permutation)
	use a given permutation for analyzing the pattern of the sparse matrix

Detailed Description

template<typename MatrixType>
class g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition

Sub-classing Eigen's SimplicialLLT to perform ordering with a given ordering.

Definition at line 65 of file linear_solver_eigen.h.

Constructor & Destructor Documentation

CholeskyDecomposition()

template<typename MatrixType >

g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition::CholeskyDecomposition ( )

inline

Definition at line 67 of file linear_solver_eigen.h.

: CholeskyDecompositionBase() {}

Member Function Documentation

analyzePatternWithPermutation()

template<typename MatrixType >

void g2o::LinearSolverEigen< MatrixType >::CholeskyDecomposition::analyzePatternWithPermutation ( SparseMatrix &  a, const PermutationMatrix &  permutation  )

inline

use a given permutation for analyzing the pattern of the sparse matrix

Definition at line 70 of file linear_solver_eigen.h.

                                                                             {
      m_Pinv = permutation;
      m_P = permutation.inverse();
      int size = a.cols();
      SparseMatrix ap(size, size);
      ap.selfadjointView<Eigen::Upper>() =
          a.selfadjointView<UpLo>().twistedBy(m_P);
      analyzePattern_preordered(ap, false);
    }

Referenced by g2o::LinearSolverEigen< MatrixType >::computeSymbolicDecomposition().

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The documentation for this class was generated from the following file:

• /build/reproducible-path/g2o-0~20230806/g2o/solvers/eigen/linear_solver_eigen.h