boundary_types = p,p
boundary_values = 1,2
initial_gradients =        -1.4, -1.4,  1.4,  1.4, -1.4, -1.4,  1.,-1.1,    1.4,  1.4, -1.4, -1.4,  1.4,  1.1,    0,  -1.1, -1.5,  1.4,  1.4, -1.4, -1.4,    1, -1.1,  1.4,  1.4, -1.4, -1.4,  1.4,  1.1,    0,  -1.1,-1.55,  1.4,  1.4, -1.4, -1.4,    1, -1.1,  1.4,  1.4, -1.4, -1.4,  1.4,  1.1,    0,  -1.1,-1.55,  1.4,  1.4, -1.4, -1.4,    1, -1.1,  1.4,  1.4, -1.4, -1.4,  1.4,  1.4, -1.3  
reflection_path =   (4,4),(5,4),(5,5),(6,5),(6,4),(7,4),(7,5),(8,5),(8,4),(7,4),(7,5),(6,5),(6,4),(5,4),(5,5),(4,5), (5,5),(5,6),(6,6),(6,5),(7,5),(7,6),(8,6),(8,5),(7,5),(7,6),(6,6),(6,5),(5,5),(5,6),(4,6), (5,6),(5,7),(6,7),(6,6),(7,6),(7,7),(8,7),(8,6),(7,6),(7,7),(6,7),(6,6),(5,6),(5,7),(4,7), (5,7),(5,8),(6,8),(6,7),(7,7),(7,8),(8,8),(8,7),(7,7),(7,8),(6,8),(6,7),(5,7),(5,8),(4,8),(4,7)  
grid_size = 9
max_radius = 70%

