ground/gcs/src/libs/eigen/doc/snippets/Tutorial_ReshapeMat2Vec.cpp

   1 MatrixXf M1(3,3);    // Column-major storage
   2 M1 << 1, 2, 3,
   3       4, 5, 6,
   4       7, 8, 9;
   5
   6 Map<RowVectorXf> v1(M1.data(), M1.size());
   7 cout << "v1:" << endl << v1 << endl;
   8
   9 Matrix<float,Dynamic,Dynamic,RowMajor> M2(M1);
  10 Map<RowVectorXf> v2(M2.data(), M2.size());
  11 cout << "v2:" << endl << v2 << endl;