about macro getmtf

  • 10 February 2021
  • 1 reply

Hi, I want to do a loop to get a lot of MTF curves. How do I do with GETMTF?

I know how to run it in a single time, but if I want to change object distance every time and rerun the GETMTF,

how should I do the loop? How to set object distance at ZPL macro?

Thanks a lot. 


Best answer by Berta.Bernad 11 February 2021, 10:54

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Hi Weihua,

You can set object distance (and another properties of surfaces) with the keywords SETSURFACEPROPERTY/SURP

The Programming Tab > About the ZPL > KEYWORDS (about the zpl) > SETSURFACEPROPERTY, SURP

And then use a FOR loop to change it. The sintax for FOR loops is the following: 

FOR variable, start_value, stop_value, increment



So something like this will change the object distance from 10 to 100 with an increment of 10 and retrieve the MTF: