F11DB_T1W_F C++ Header Example Program Data 4 11 1. 1 2 1. 1 3 -1. 2 1 2. 2 3 2. 2 4 3. 3 1 -2. 3 4 1. 4 1 -2. 4 2 1. 4 3 1. 4 4 5.0 13.0 -5.0 4.0