Run Daylight Simulation - [source code]

export geometries to rad file, and run daylighting/energy simulation -


  • HBObjects [Required]
    List of Honeybee objects
  • analysisRecipe [Required]
    An analysis recipe
  • writeRad [Required]
    Write simulation files
  • runRad [Optional]
    Run the analysis. _writeRad should be also set to true. Set to 2 if you want the analysis to run in background. This option is useful for parametric runs when you don't want to see command shells.
  • numOfCPUs [Default]
    Number of CPUs to be used for the studies. This option doesn't work for image-based analysis
  • workingDir [Default]
    Working directory on your system. Default is set to C:\Ladybug
  • radFileName [Default]
    Input the project name as a string
  • meshSettings [Optional]
    Custom mesh setting. Use Grasshopper mesh setting components
  • exportAirWalls [Optional]
    Set to True if you want to export air walls as surfaces and False if you don't want air walls be exported. The default is set to False.
  • additionalRadFiles [Optional]
    A list of fullpath to valid radiance files which will be added to the scene
  • overwriteResults [Optional]
    Set to False if you want the component create a copy of all the results. Default is True


  • readMe!
  • analysisType
    Type of the analysis (e.g. illuminance, luminance,...)
  • resultsUnit
    Unit of the results (e.g. lux, candela, wh/m2)
  • results
    Path to the results of grid based analysis (includes all the recipes except image-based and annual)
  • testPts
    Test points
  • resultFiles
    Script variable runDaylightAnalysis
  • radGeoFile
    Script variable runDaylightAnalysis
  • studyFolder
    Script variable runDaylightAnalysis
  • done
    True if the study is over

Check Hydra Example Files for Run Daylight Simulation

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