ZOS-API Wavefront map populated by zeros

Question

Hi Zemax community,I am a student who is learning to use the ZOS API in Matlab and I’m having issues with getting results from New_WavefrontMap. How do I correctly pull data from a wavefront map? As the results I plot are always zero.I am running a wavefront analysis and POP analysis in the same program, which uses the ‘Double Gauss 5 degree field.zmx’ file from samples. I apply the analysis then pull the results using the following code to get the data:WF_Map_Data = New_WF_map_results.DataGrids(1).Values.double;matrixData = POP_Results.DataGrids(1).Values.double;and try to plot it in Matlab the matrix will be populated by zeros.Wavefront map populated by 0’sBoth wavefront map and POP are set up in a similar fashion, but when plotting the results of the POP it will not be populated by zeros.POP resultThanks for readingNick

Jeff.Wilde · Accepted Answer

I’m not sure why your wavefront data is all zeros. Perhaps you can share more of your Matlab code?

When I use the same sample file, and run the following code, it seems to work okay:

% Create new wavefront analysis
New_WF_map = TheSystem.Analyses.New_WavefrontMap(); 

% Run Analysis & gets results
New_WF_map.ApplyAndWaitForCompletion();
WF_Map_Data = New_WF_map.Results.DataGrids(1).Values.double;

% plot results
figure, imagesc(WF_Map_Data), axis image 
colorbar

Nicholas.North · Answer

Hi Jeff, thanks for your reply. Here are the parts of the code which take the wavefront analysis:

Creating the analyses and wavefront analysis are done through these lines

% Create analysis
TheAnalyses = TheSystem.Analyses;
New_WF_map = TheAnalyses.New_Analysis(ZOSAPI.Analysis.AnalysisIDM.WavefrontMap);

After creating the analysis the field and wavelength number are set to 1

%Wavefront settings
New_WF_Settings = New_WF_map.GetSettings();
New_WF_Settings.Wavelength.SetWavelengthNumber(1);
New_WF_Settings.Field.SetFieldNumber(1);

I then apply the analysis and grab the results

% Run Analysis & gets results
New_WF_map.ApplyAndWaitForCompletion();
New_WF_map_results = New_WF_map.GetResults();

Then the results are plotted with the following code

%Plot wavefront
WF_Map_Data = New_WF_map_results.DataGrids(1).Values.double;
figure
imagesc(WF_Map_Data);
colorbar;
title('Wavefront Map 2')
colormap(jet);
xlabel('Px');
ylabel('Py');

ZOS-API Wavefront map populated by zeros

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