Distance of source from image plane (d): 10 Distance of occluder from image plane (l): 5 Length of source (s1): 10 Breadth of source (s2): 10 Length of occluder (s3): 10 Breadth of occluder (s4): 10 Theta (theta): 0.0 Length of image plane relative to length of source (s5): 10 Breadth of image plane relative to breadth of source (s6): 10 No. of grid points along length on the source (as): 12 No. of grid points along breadth on the source (bs): 12 No. of grid points along length on the image plane (ap): 50 No. of grid points along breadth on the image plane (bp): 50