internal Namespace Reference

Functions
int	computeUpperTriangleIndex (int i, int j)
template<typename MatrixType >
void	pcg_axy (const MatrixType &A, const VectorX &x, int xoff, VectorX &y, int yoff)
template<>
void	pcg_axy (const MatrixX &A, const VectorX &x, int xoff, VectorX &y, int yoff)
template<typename MatrixType >
void	pcg_axpy (const MatrixType &A, const VectorX &x, int xoff, VectorX &y, int yoff)
template<>
void	pcg_axpy (const MatrixX &A, const VectorX &x, int xoff, VectorX &y, int yoff)
template<typename MatrixType >
void	pcg_atxpy (const MatrixType &A, const VectorX &x, int xoff, VectorX &y, int yoff)
template<>
void	pcg_atxpy (const MatrixX &A, const VectorX &x, int xoff, VectorX &y, int yoff)

Function Documentation

computeUpperTriangleIndex()

int internal::computeUpperTriangleIndex ( int  i, int  j  )

inline

Definition at line 30 of file base_variable_sized_edge.hpp.

                                                   {
  int elemsUpToCol = ((j - 1) * j) / 2;
  return elemsUpToCol + i;
}

Referenced by g2o::BaseVariableSizedEdge< D, E >::computeQuadraticForm(), and g2o::BaseVariableSizedEdge< D, E >::mapHessianMemory().

pcg_atxpy() [1/2]

template<typename MatrixType >

void internal::pcg_atxpy ( const MatrixType &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 73 of file linear_solver_pcg.hpp.

                                            {
  y.segment<MatrixType::ColsAtCompileTime>(yoff) +=
      A.transpose() * x.segment<MatrixType::RowsAtCompileTime>(xoff);
}

Referenced by g2o::LinearSolverPCG< MatrixType >::mult().

pcg_atxpy() [2/2]

template<>

void internal::pcg_atxpy ( const MatrixX &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 80 of file linear_solver_pcg.hpp.

                                {
  y.segment(yoff, A.cols()) += A.transpose() * x.segment(xoff, A.rows());
}

pcg_axpy() [1/2]

template<typename MatrixType >

void internal::pcg_axpy ( const MatrixType &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 60 of file linear_solver_pcg.hpp.

                                           {
  y.segment<MatrixType::RowsAtCompileTime>(yoff) +=
      A * x.segment<MatrixType::ColsAtCompileTime>(xoff);
}

Referenced by g2o::LinearSolverPCG< MatrixType >::mult().

pcg_axpy() [2/2]

template<>

void internal::pcg_axpy ( const MatrixX &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 67 of file linear_solver_pcg.hpp.

                               {
  y.segment(yoff, A.rows()) += A * x.segment(xoff, A.cols());
}

pcg_axy() [1/2]

template<typename MatrixType >

void internal::pcg_axy ( const MatrixType &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 46 of file linear_solver_pcg.hpp.

                              {
  y.segment<MatrixType::RowsAtCompileTime>(yoff) =
      A * x.segment<MatrixType::ColsAtCompileTime>(xoff);
}

Referenced by g2o::LinearSolverPCG< MatrixType >::multDiag(), and g2o::LinearSolverPCG< MatrixType >::multDiag().

pcg_axy() [2/2]

template<>

void internal::pcg_axy ( const MatrixX &  A, const VectorX &  x, int  xoff, VectorX &  y, int  yoff  )

inline

Definition at line 53 of file linear_solver_pcg.hpp.

                              {
  y.segment(yoff, A.rows()) = A * x.segment(xoff, A.cols());
}