# distance form source to screen
dist    0.2
# screen
#       x-min           y-min           x-max           y-max
screen  -0.4            -0.4            0.4             0.4

# picture
picture 1000            1000

# wavelength
lambda  0.3e-6

# sources
#       x-pos           y-pos           amplitude
source  -1.200000e-05  0.000000e+00  1
source  -6.000000e-06  -3.464102e-06  1
source  -6.000000e-06  3.464102e-06  1
source  0.000000e+00  0.000000e+00  1
source  6.000000e-06  -3.464102e-06  1
source  6.000000e-06  3.464102e-06  1
source  1.200000e-05  0.000000e+00  1