[求助]请帮忙写个圆孔衍射的程序 [复制链接]

偶是新手，不明白里面的衍射是怎么弄的，请各位大侠帮忙写个圆孔衍射的程序看看行吗？在DETECTOR显示出衍射图样来？希望把程序命令帖出来。 b~9`]+  
谢谢！ %2YN,a4  
自己根据例子改了一个，但是发现出来的图像和matlab的不一样，相差很大，觉得应该是错了，请大家帮忙看看呗？ C(U  
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SYSTEM NEW O!,Ca1N  
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COATING PROPERTIES 0}D-KvjyP  
  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  0.0  'ABSORB' 7?,7TR2Ny  
  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0  0.0  1.0   'TRANSMIT' ka8$dfC  
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WIDTHS 1.6 8>ESD}(  
GRID RECT Y 100 -4@500 2@100 '^e0Ud,  
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  PICTURE r;&]?9
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RETURN v#Cz&j  
自己根据例子改的 {-xi0
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为什么出来的衍射图和MATLAB的不一样的 Y9IJ  
相差很大 t9Enk!@  
自己觉得不对 %NF<bEV  
请高手指点一下