Any way to toggle layer or model visibility through Python?

[LR]

I can fetch a layer list, and I can fetch the objects from a certain layer. However, I can't find anything that changes their visibility. Is that not implemented?

If it is, is it possible to run a script that I could use for toggling visibility based on a variable within the script? AFAIK the whole script is always run, so if I define switch variables and change them, they're reset every time I run the script again.

[LR]

Dang, it's still not 100% right. The buildings don't generate if the models are deleted. I tried putting ce.generateModels(VisibleObjects) under the block at line 48 (# set generate attribute for visible layers), but running the code just locks up CE. Any idea why that might be?

[DavidWasserman]

Try putting them in a valid selection and then passing the selection first, then hit generate on it rather than the layer.

ce.generateModels(ce.selection())

[LR]

Thanks for linking the reference, I completely forgot about the options. Setting synchronous to false did the trick.

[DavidWasserman]

That makes sense actually. Other parameters would have been next on the list, but considering your context synchronous to false makes sense. Care to share a gif of the result? I am curious of the end result?

[LR]

Here you go. I stuffed this in a loop to go through a bunch of layers and check if the models in them touch other stuff.

[Anonymous User]

ZR, This is a CityEngine python question, and not an ArcPy question, right? Just clarifying for Ben.

I don't know the answer, but I have a friend David with the same question. I sent him a link to this. Maybe one or the other of you will find the answer.

Chris

[DavidWasserman]

I have run into the same problem. I have been able to get the layer list into a web scene (see image below), but I am having the same problem. I am continuing to research it, but I bet it hinges on filtering out each  layer with a new 3DView or some other class. How they interact is still some I am playing with.

We will figure this out.

[Anonymous User]

Hey guys,

Attached is an example of how to turn off and on the layer visibility.

To test it make a layer named "TestLayer". The sample actually turns it off, and then back on again. And prints the current state.

Let me know if you have further questions.

Chris

[DavidWasserman]

Thanks Chris. Will let you know how it goes later tonight.

Hopefully now I will have 200 cross sections webscenes, and 200 snap shots XD.