Ignoring multiple surfaces at once, ZOSAPI, python

Question

Hello fellow optics enthusiasts,I’m currently working on a task where I need to ignore multiple surfaces in a Zemax optical system using the ZOS-API. At the moment, I’m using the following loop:for i in range(150, 160):    surface = TheSystem.LDE.GetSurfaceAt(i)    surface.TypeData.IgnoreSurface = TrueHowever, this approach seems to be quite slow. Has anyone found a more efficient way to ignore multiple surfaces at once?Any insights or suggestions would be greatly appreciated!Thanks in advance,Sebastián

chaasjes · Accepted Answer

I am afraid there are no alternatives to doing this in a loop.

However, do you run this in extension mode? Updating a boolean property doesn't take much time, but in extension mode, it takes some time to update the UI. If you are using the ZOS-API in extension mode, you'll see a significant speed-up if you take one of these measures:

Connect to OpticStudio in standalone mode;
Turn UI updates off before expensive operations and on again afterwards. You can do this with TheApplication.ShowChangesInUI = False # (or True).

Sebastián.Gedeon · Answer

Thanks a lot @chaasjes!Yes, I’m using extension mode. I added TheApplication.ShowChangesInUI = False before the loop and set it back to True afteand now it’s much faster!Really appreciate your help!Sebastián

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