extract_from_eigen_matrix()

template<typename EigenMatrix >

static std::vector< std::span< double > > MayaFlux::Yantra::OperationHelper::extract_from_eigen_matrix ( const EigenMatrix &  matrix )

inlinestaticprivate

Infer data structure from ComputeData type.

Template Parameters

T	ComputeData type

Parameters

compute_data

Input data

Returns

Pair of (dimensions, modality)

Definition at line 744 of file OperationHelper.hpp.

    {
        static thread_local std::vector<std::vector<double>> columns;
        columns.clear();
        columns.resize(matrix.cols());
        std::vector<std::span<double>> spans;
        spans.reserve(matrix.cols());
 
        for (int col = 0; col < matrix.cols(); ++col) {
            columns[col].resize(matrix.rows());
            for (int row = 0; row < matrix.rows(); ++row) {
                columns[col][row] = static_cast<double>(matrix(row, col));
            }
            spans.emplace_back(columns[col].data(), columns[col].size());
        }
        return spans;
    }

References columns.