How to convert a vtkDoubleArray to an Eigen::matrix
问题 I've found the Eigen::Map class for converting a raw array to an Eigen class (and some useful snippets here https://stackoverflow.com/a/12007784/1136458 ) Is there any Eigen or vtk class to convert a vtk array to an Eigen class (and back)? What I am trying right now is: convert vtkDoubleArray to std::vector of std::vector (as in How to get the the values of a vtkDoubleArray in a std::vector ) using map to have a matrixxd Eigen::MatrixXd eig_arr; eig_arr = Eigen::Map<Eigen::MatrixXd> (cpp