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The class Eigen_solver_traits provides an interface to the sparse solvers of Eigen. The version 3.1 (or greater) of Eigen must be available on the system.
#include <CGAL/Eigen_solver_traits.h>
| typedef typename T::Scalar | NT; | |
| typedef CGAL::Eigen_vector<NT> | Vector; | |
| Eigen_solver_traits<T>::Matrix | |
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If T is Eigen::ConjugateGradient<M> or Eigen::SimplicialCholesky<M>, Matrix is CGAL::Eigen_sparse_symmetric_matrix<T>
and CGAL::Eigen_sparse_matrix<T> otherwise.
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| T& | st.solver () | Returns a reference to the internal Eigen solver. This function can be used for example to set specific parameters of the solver. |
typedef CGAL::Eigen_sparse_matrix<double>::EigenType EigenMatrix; //iterative general solver typedef CGAL::Eigen_solver_traits< Eigen::BiCGSTAB<EigenMatrix> > Iterative_general_solver; //iterative symmetric solver typedef CGAL::Eigen_solver_traits< Eigen::ConjugateGradient<EigenMatrix> > Iterative_symmetric_solver; //direct symmetric solver typedef CGAL::Eigen_solver_traits< Eigen::SimplicialCholesky<EigenMatrix> > Direct_symmetric_solver;