Hi Gareth,





I have seen that you have also sent your question to our support inbox.


But just to summarize, I have run the sample file "{Zemax}\ZOS-API Sample Code\MATLAB\MATLABStandalone_04_pull_data_from_FFTMTF.m" on the latest version of OpticStudio and it works fine on our side.

Are you using the latest version?





Sandrine

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Hi Sandrine,





Thanks for your response.





The webinar uses OpticStudio 15, and runs the code just fine!


So it really can't be an issue with the specific version, right.





Gareth

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Hi Gareth,





OpticStudio 15 had a bug in the sampling enumeration variables that was repaired in OpticStudio 15 SP1. The webinar was likely run in that version instead. 





To be able to use this command, you will need to upgrade to a newer version of OpticStudio. You can also manually open an FFT MTF, change the settings, and click the "SAVE" button on the settings dialog. Then the FFT MTF will open with those settings every time and you won't need to use the API to change the resolution. 





Let us know if you have any other questions about this!





Allie

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Zemax OpticsStudio 20.1.3 

...


% Set up primary optical system


%TheSystem = TheApplication.CreateNewSystem(ZOSAPI.SystemType.Sequential);


sampleDir='C:\Applications\Zemax\Samples\Sequential\Objectives\';


lensFile = System.String.Concat(sampleDir,'Cooke 40 degree field.zmx');


%TheAnalyses = TheSystem.Analyses;


TheSystem = TheApplication.PrimarySystem;


TheLDE = TheSystem.LDE;


% Open a Diffraction Encircled Energy plot


diffEnergy = TheSystem.Analyses.New_Analysis(ZOSAPI.Analysis.AnalysisIDM.DiffractionEncircledEnergy);


% Update the settings to look at Ensquared energy instead


diffSettings = diffEnergy.GetSettings();


diffSettings.Type = ZOSAPI.Analysis.Settings.EncircledEnergy.EncircledEnergyTypes.Ensquared;


diffSettings.SampleSize = ZOSAPI.Analysis.SampleSizes.S_64X64;


!!!Error!!!


The class ZOSAPI.Analysis.SampleSizes has no Constant property or Static method named 'S_64X64'.

Error in ZemaxEEStandalone>BeginApplication (line 40)


diffSettings.SampleSize = ZOSAPI.Analysis.SampleSizes.S_64X64;

!!However!!


K>> disp(diffSettings.SampleSize)


S_64x64

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Hi Don,

I notice one slight difference between the code under '!!!Error!!!' and the code under '!!However!!'. It looks like you input S_64X64 with a capital 'X'. For the sample size distinctions, the 'x' should be lower-case instead. The code will work with that update. I'm attaching a snippet below:

Let us know if you have any other questions about this!

Best,

Allie

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