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27 lines
1.5 KiB
27 lines
1.5 KiB
#include "src/adapters/EigenAdapter.h"
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namespace storm {
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namespace adapters {
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template<typename ValueType>
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std::unique_ptr<Eigen::SparseMatrix<ValueType>> EigenAdapter::toEigenSparseMatrix(storm::storage::SparseMatrix<ValueType> const& matrix) {
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// Build a list of triplets and let Eigen care about the insertion.
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std::vector<Eigen::Triplet<ValueType>> triplets;
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triplets.reserve(matrix.getNonzeroEntryCount());
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for (uint64_t row = 0; row < matrix.getRowCount(); ++row) {
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for (auto const& element : matrix.getRow(row)) {
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triplets.emplace_back(row, element.getColumn(), element.getValue());
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}
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}
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std::unique_ptr<Eigen::SparseMatrix<ValueType>> result = std::make_unique<Eigen::SparseMatrix<ValueType>>(matrix.getRowCount(), matrix.getColumnCount());
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result->setFromTriplets(triplets.begin(), triplets.end());
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return result;
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}
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template std::unique_ptr<Eigen::SparseMatrix<double>> EigenAdapter::toEigenSparseMatrix(storm::storage::SparseMatrix<double> const& matrix);
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template std::unique_ptr<Eigen::SparseMatrix<storm::RationalNumber>> EigenAdapter::toEigenSparseMatrix(storm::storage::SparseMatrix<storm::RationalNumber> const& matrix);
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template std::unique_ptr<Eigen::SparseMatrix<storm::RationalFunction>> EigenAdapter::toEigenSparseMatrix(storm::storage::SparseMatrix<storm::RationalFunction> const& matrix);
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}
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}
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