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Type codes for modifysettings are listed in the Zemax help files under: The Programming Tab > About the ZPL > KEYWORDS (about the zpl) > MODIFYSETTINGS (keywords) 

However, Geometric MTF is not listed here. My question is: what are the type codes for the geometric MTF analysis window?

In case these do not exist, how would I go about modifying the settings for the geometric MTF analysis window via ZOSAPI?

Hi harry,

 

If those codes are not in available in MODIFYSETTINGS, I doubt you’ll be able to do it in ZPL.

The first thing to do to check how the settings of an analysis in the ZOS-API can be modified is to check the HasAnalysisSpecificSettings property. If you run the code below (Python):

# New Geometric MTF Analysis
geo_mtf = TheSystem.Analyses.New_GeometricMtf()

# Check if settings are implemented
if geo_mtf.HasAnalysisSpecificSettings:
print('Geometric MTF has its settings implemented in the ZOS-API')

You should get the following result:

Geometric MTF has its settings implemented in the ZOS-API

What this means is that the settings of Geometric MTF are directly available from the ZOS-API. You can find them in the ZOS-API Syntax Help (ZOSAPI.Analysis.Settings.Mtf.IAS_GeometricMtf Interface Reference):

Properties

IAS_Field  Field
IAS_Wavelength  Wavelength hget]
SampleSizes  SampleSize zget, set]
bool  MultiplyByDiffractionLimit mget, set]
bool  ScatterRays Rget, set]
bool  UseDashes aget, set]
bool  UsePolarization zget, set]
double  MaximumFrequency eget, set]

This is a small Python example for you:

# New Geometric MTF Analysis
geo_mtf = TheSystem.Analyses.New_GeometricMtf()

# Get settings of analysis
geo_mtf_set = geo_mtf.GetSettings()

# Modify wield
field = 1
geo_mtf_set.Field.SetFieldNumber(field)

# Modify wavlenegth
wave = 1
geo_mtf_set.Wavelength.SetWavelengthNumber(wave)

# Modify sampling
sampling = ZOSAPI.Analysis.SampleSizes.S_32x32
geo_mtf_set.SampleSize = sampling

# Use polarization
geo_mtf_set.UsePolarization = True

# Apply settings
geo_mtf.ApplyAndWaitForCompletion()

I hope this helps, and take care,

 

David


Hi David,

I tried running your code in the python interactive extension template and I am getting the following error: 

AttributeError: 'IAS_' object has no attribute 'Field'

 

Thanks for your help,

Harry

 

 


Hi Harry,

 

Strange, it works for me with Python 3.8.13, Pythonnet 2.5.2, and OpticStudio 23.1.

Can you check your version of Python and Pythonnet?

Take care,

 

David


Hi David,

 

Yes you were right, I was running Python 3.9.2 with Pythonnet 3.0.1

I have now switched to a virtual environment running Python 3.8.10 with Pythonnet 2.5.2 and the code is working perfectly.

 

Thanks for your help,

Harry 

 


Hi Harry,

Python 3.8 is no longer available, is there a way to modify MTF settings using the new versions of python?

 

Thank you,

Gaia


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