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 # PythonStandalone\_11\_Basic\_Seq

 Last update: 17.07.2025 

 1import clr, os, winreg

 2from itertools import islice

 3 

 4from shutil import copyfile

 5 

 6class PythonStandaloneApplication(object):

 7 class LicenseException(Exception):

 8 pass

 9 class ConnectionException(Exception):

 10 pass

 11 class InitializationException(Exception):

 12 pass

 13 class SystemNotPresentException(Exception):

 14 pass

 15 

 16 def __init__(self, path=None):

 17 \# determine location of ZOSAPI\_NetHelper.dll &amp; add as reference

 18 aKey = winreg.OpenKey(winreg.ConnectRegistry(None, winreg.HKEY_CURRENT_USER), r"Software\\Zemax", 0, winreg.KEY_READ)

 19 zemaxData = winreg.QueryValueEx(aKey, 'ZemaxRoot')

 20 NetHelper = os.path.join(os.sep, zemaxData[0], r'ZOS-API\\Libraries\\ZOSAPI\_NetHelper.dll')

 21 winreg.CloseKey(aKey)

 22 clr.AddReference(NetHelper)

 23 import ZOSAPI_NetHelper

 24 

 25 \# Find the installed version of OpticStudio

 26 if path is None:

 27 isInitialized = ZOSAPI_NetHelper.ZOSAPI_Initializer.Initialize()

 28 else:

 29 \# Note -- uncomment the following line to use a custom initialization path

 30 isInitialized = ZOSAPI_NetHelper.ZOSAPI_Initializer.Initialize(path)

 31 

 32 \# determine the ZOS root directory

 33 if isInitialized:

 34 dir = ZOSAPI_NetHelper.ZOSAPI_Initializer.GetZemaxDirectory()

 35 else:

 36 raise PythonStandaloneApplication.InitializationException("Unable to locate Zemax OpticStudio. Try using a hard-coded path.")

 37 

 38 \# add ZOS-API referencecs

 39 clr.AddReference(os.path.join(os.sep, dir, "ZOSAPI.dll"))

 40 clr.AddReference(os.path.join(os.sep, dir, "ZOSAPI\_Interfaces.dll"))

 41 import ZOSAPI

 42 

 43 \# create a reference to the API namespace

 44 self.ZOSAPI = ZOSAPI

 45 

 46 \# create a reference to the API namespace

 47 self.ZOSAPI = ZOSAPI

 48 

 49 \# Create the initial connection class

 50 self.TheConnection = [ZOSAPI.ZOSAPI\_Connection](class_z_o_s_a_p_i_1_1_z_o_s_a_p_i___connection.xhtml)()

 51 

 52 if self.TheConnection is None:

 53 raise PythonStandaloneApplication.ConnectionException("Unable to initialize .NET connection to ZOSAPI")

 54 

 55 self.TheApplication = self.TheConnection.CreateNewApplication()

 56 if self.TheApplication is None:

 57 raise PythonStandaloneApplication.InitializationException("Unable to acquire ZOSAPI application")

 58 

 59 if self.TheApplication.IsValidLicenseForAPI == False:

 60 raise PythonStandaloneApplication.LicenseException("License is not valid for ZOSAPI use")

 61 

 62 self.TheSystem = self.TheApplication.PrimarySystem

 63 if self.TheSystem is None:

 64 raise PythonStandaloneApplication.SystemNotPresentException("Unable to acquire Primary system")

 65 

 66 def __del__(self):

 67 if self.TheApplication is not None:

 68 self.TheApplication.CloseApplication()

 69 self.TheApplication = None

 70 

 71 self.TheConnection = None

 72 

 73 def OpenFile(self, filepath, saveIfNeeded):

 74 if self.TheSystem is None:

 75 raise PythonStandaloneApplication.SystemNotPresentException("Unable to acquire Primary system")

 76 self.TheSystem.LoadFile(filepath, saveIfNeeded)

 77 

 78 def CloseFile(self, save):

 79 if self.TheSystem is None:

 80 raise PythonStandaloneApplication.SystemNotPresentException("Unable to acquire Primary system")

 81 self.TheSystem.Close(save)

 82 

 83 def SamplesDir(self):

 84 if self.TheApplication is None:

 85 raise PythonStandaloneApplication.InitializationException("Unable to acquire ZOSAPI application")

 86 

 87 return self.TheApplication.SamplesDir

 88 

 89 def ExampleConstants(self):

 90 if self.TheApplication.LicenseStatus == self.ZOSAPI.LicenseStatusType.PremiumEdition:

 91 return "Premium"

 92 elif self.TheApplication.LicenseStatus == self.ZOSAPI.LicenseStatusTypeProfessionalEdition:

 93 return "Professional"

 94 elif self.TheApplication.LicenseStatus == self.ZOSAPI.LicenseStatusTypeStandardEdition:

 95 return "Standard"

 96 else:

 97 return "Invalid"

 98 

 99 def reshape(self, data, x, y, transpose = False):

 100 """Converts a System.Double\[,\] to a 2D list for plotting or post processing

 101 

 102 Parameters

 103 ----------

 104 data : System.Double\[,\] data directly from ZOS-API 

 105 x : x width of new 2D list [use var.GetLength(0) for dimension]

 106 y : y width of new 2D list [use var.GetLength(1) for dimension]

 107 transpose : transposes data; needed for some multi-dimensional line series data

 108 

 109 Returns

 110 -------

 111 res : 2D list; can be directly used with Matplotlib or converted to

 112 a numpy array using numpy.asarray(res)

 113 """

 114 if type(data) is not list:

 115 data = list(data)

 116 var_lst = [y] * x;

 117 it = iter(data)

 118 res = [list(islice(it, i)) for i in var_lst]

 119 if transpose:

 120 return self.transpose(res);

 121 return res

 122 

 123 def transpose(self, data):

 124 """Transposes a 2D list (Python3.x or greater). 

 125 

 126 Useful for converting mutli-dimensional line series (i.e. FFT PSF)

 127 

 128 Parameters

 129 ----------

 130 data : Python native list (if using System.Data[,] object reshape first) 

 131 

 132 Returns

 133 -------

 134 res : transposed 2D list

 135 """

 136 if type(data) is not list:

 137 data = list(data)

 138 return list(map(list, zip(*data)))

 139 

 140if __name__ == '\_\_main\_\_':

 141 zos = PythonStandaloneApplication()

 142 

 143 \# load local variables

 144 ZOSAPI = zos.ZOSAPI

 145 TheApplication = zos.TheApplication

 146 TheSystem = zos.TheSystem

 147 if not os.path.exists(TheApplication.SamplesDir + "\\\\API\\\\Python"):

 148 os.makedirs(TheApplication.SamplesDir + "\\\\API\\\\Python")

 149 

 150 \#! \[e11s01\_py\]

 151 \# Create New Sequential File

 152 TheSystem.New(False)

 153 \# Name File

 154 fileName = TheApplication.SamplesDir + "\\\\API\\\\Python\\\\e11\_basic\_seq.zos"

 155 TheSystem.SaveAs(fileName)

 156 \#! \[e11s01\_py\]

 157 

 158 \#! \[e11s02\_py\]

 159 \# Changing System Explorer Settings

 160 \# Set Aperture

 161 TheSystemData = TheSystem.SystemData

 162 TheSystemData.Aperture.ApertureValue = 20

 163 TheSystem.SystemData.MaterialCatalogs.AddCatalog('SCHOTT')

 164 

 165 \# Set Apodization Type to Gaussian, and set apodization factor to 1

 166 TheSystemData.Aperture.ApodizationType = 1 \# ApodizationType 0 = uniform; 1 = gaussian; 2 = Cosine Cubed

 167 TheSystemData.Aperture.ApodizationFactor = 1

 168 \# Set Wavelength

 169 TheSystemData.Wavelengths.SelectWavelengthPreset(ZOSAPI.SystemData.WavelengthPreset.FdC_Visible)

 170 \#! \[e11s02\_py\]

 171 

 172 \#! \[e11s03\_py\]

 173 \# Insert and Track New Surfaces, set STOP to surface 1

 174 TheLDE = TheSystem.LDE

 175 TheLDE.InsertNewSurfaceAt(1)

 176 TheLDE.InsertNewSurfaceAt(1)

 177 TheLDE.InsertNewSurfaceAt(1)

 178 Surf_1 = TheLDE.GetSurfaceAt(1)

 179 Surf_2 = TheLDE.GetSurfaceAt(2)

 180 Surf_3 = TheLDE.GetSurfaceAt(3)

 181 Surf_4 = TheLDE.GetSurfaceAt(4)

 182 Surf_1.IsStop = 1

 183 \# Set some baseline parameters

 184 Surf_1.Thickness = 5

 185 Surf_2.Thickness = 5

 186 Surf_2.Radius = 100

 187 Surf_2.Material = "N-BK7"

 188 Surf_3.Thickness = 3

 189 Surf_3.Radius = -30

 190 Surf_3.Material = "F2"

 191 Surf_4.Radius = -80

 192 \#! \[e11s03\_py\]

 193 

 194 \#! \[e11s04\_py\]

 195 \# Set system lens units to inches, scale all values with Scale Lens tool

 196 unit = TheSystemData.Units.LensUnits \# For demonstration only. This file is new, so it has default units mm.

 197 ScaleLens = TheSystem.Tools.OpenScale() \# Open Scale Lens tool

 198 \# Apply Tool Settings

 199 ScaleLens.ScaleByUnits = True

 200 ScaleLens.ScaleToUnit = 2 \# 0=millimeters; 1=centimeters; 2=inches; 3=meters

 201 \# Cast to ISystemTool interface to gain access to Run

 202 ScaleLens.RunAndWaitForCompletion()

 203 ScaleLens.Close()

 204 \#! \[e11s04\_py\]

 205 

 206 \#! \[e11s05\_py\]

 207 \# Add Rectangular Aperture to Surface 1

 208 \# Get surface 1, create aperture settings

 209 Surf_1 = TheSystem.LDE.GetSurfaceAt(1)

 210 rAperture = Surf_1.ApertureData.CreateApertureTypeSettings(ZOSAPI.Editors.LDE.SurfaceApertureTypes.RectangularAperture)

 211 \# Set aperture size

 212 rAperture._S_RectangularAperture.XHalfWidth = .1

 213 rAperture._S_RectangularAperture.YHalfWidth = .1

 214 \# Apply aperture settings to surface 1

 215 Surf_1.ApertureData.ChangeApertureTypeSettings(rAperture)

 216 \#! \[e11s05\_py\]

 217 

 218 \#! \[e11s06\_py\]

 219 \# Run Quick Focus

 220 QuickFocus = TheSystem.Tools.OpenQuickFocus()

 221 QuickFocus.RunAndWaitForCompletion()

 222 QuickFocus.Close()

 223 \#! \[e11s06\_py\]

 224 

 225 \#! \[e11s07\_py\]

 226 \# Open Universal Plot of RMS Spot Size vs Surface3 Thickness

 227 UnivPlot = TheSystem.Analyses.New_Analysis(ZOSAPI.Analysis.AnalysisIDM.UniversalPlot1D)

 228 UnivPlot_Settings = UnivPlot.GetSettings()

 229 print("Universal Plot has analysis specific settings? ", UnivPlot.HasAnalysisSpecificSettings)

 230 \# Above is False; Universal Plot Settings must be changed via ModifySettings (changing a config (.cfg) file)

 231 cfg = TheApplication.ZemaxDataDir + "\\\\Configs\\\\UNI.CFG"

 232 UnivPlot_Settings.Save() \# Create new .cfg file, named "UNI.CFG" in \\Configs\\ folder

 233 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_SURFACE', str(TheSystem.LDE.NumberOfSurfaces - 2))

 234 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_STARTVAL', str(Surf_4.Thickness - 0.4 / 25.4)) \# Change universal plot settings

 235 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_STOPVAL', str(Surf_4.Thickness + 0.1 / 25.4))

 236 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_STEPS', str(20))

 237 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_PAR1', str(10))

 238 UnivPlot_Settings.ModifySettings(cfg, 'UN1\_OPERAND', "RSRE")

 239 \# For ModifySettings keycodes (UN1\_STARTVAL, UN1\_STEPS, etc.), see MODIFYSETTINGS page in ZPL&gt;keywords help files

 240 \# LoadFrom allows you to load any CFG file, not just default; not available via GUI

 241 UnivPlot_Settings.LoadFrom(cfg)

 242 \#! \[e11s07\_py\]

 243 

 244 \#! \[e11s08\_py\]

 245 \# Open Spot Diagram to See Result!

 246 newSpot = TheSystem.Analyses.New_StandardSpot()

 247 print("Spot has analysis specific settings? ", newSpot.HasAnalysisSpecificSettings) \# True; no ModifySettings

 248 newSettings = newSpot.GetSettings()

 249 newSettings.RayDensity = 15

 250 newSpot.ApplyAndWaitForCompletion()

 251 \#! \[e11s08\_py\]

 252 

 253 \# save!

 254 TheSystem.Save()

 255 

 256 

 257 \# This will clean up the connection to OpticStudio.

 258 \# Note that it closes down the server instance of OpticStudio, so you for maximum performance do not do

 259 \# this until you need to.

 260 del zos

 261 zos = None

[ZOSAPI.ZOSAPI\_Connection](class_z_o_s_a_p_i_1_1_z_o_s_a_p_i___connection.xhtml)

**Definition:** ZemaxService.cs:198