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

   1 Matrix3i m1;
   2 m1 << 1, 2, 3,
   3       4, 5, 6,
   4       7, 8, 9;
   5 cout << m1 << endl << endl;
   6 Matrix3i m2 = Matrix3i::Identity();
   7 m2.block(0,0, 2,2) << 10, 11, 12, 13;
   8 cout << m2 << endl << endl;
   9 Vector2i v1;
  10 v1 << 14, 15;
  11 m2 << v1.transpose(), 16,
  12       v1, m1.block(1,1,2,2);
  13 cout << m2 << endl;