Description This function saves the current raytrace path data to a binary file and returns a count of the number of paths that were written. The binary file can be read back into FRED using the ReadRaytraceRayPathsFromFile function. A Python script utility ( <install dir>\Resources\Samples\Scripts\Python\ListFRPFileContents.py ) is also provided that can process and report the raypath file data independently.
Note: Modifications to the "filtered" values associated with each raytrace path are not saved into the *.frp file.
Syntax pCount = SaveRaytraceRayPathsToFile( fName )
Parameters pCount (Long) The number of paths that were written to file.
fName As String The full path name of the binary raypath file that will be written. The raypath file should have extension FRP.
Example The following script demonstrates how to raytrace with paths in a loop, saving raypath files on each iteration and then re-combining them in a merge operation. Sub Main()
'Base directory where raypath files will be saved Dim baseDir As String baseDir = "C:\temp\"
'Delete any existing raytrace paths SetUserDefinedRayPathMode( False ) PathDeleteAll()
'Number of raytrace loops we would like to take Dim loopCount As Long loopCount = 3
'Advanced raytrace initialization Dim tAdv As T_ADVANCEDRAYTRACE InitAdvancedRaytrace( tAdv ) tAdv.draw = False tAdv.rayPaths = True
'Raytrace loop with path file saving Dim curLoop As Long, pCount As Long Dim curPathFile As String pCount = 0 For curLoop = 1 To loopCount 'Trace and save current paths AdvancedRaytrace( tAdv ) curPathFile = "rayPaths_" & CStr(curLoop) pCount = pCount + SaveRaytraceRayPathsToFile( baseDir & curPathFile )
'Delete current paths PathDeleteAll() Next Print pCount & " paths saved to file(s)"
'Go back and load all paths from files pCount = 0 For curLoop = 1 To loopCount
curPathFile = "rayPaths_" & CStr(curLoop) pCount = pCount + ReadRaytraceRayPathsFromFile( baseDir & curPathFile, True)
Next Print pCount & " paths read from file(s)"
End Sub
See Also
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