scene preview keeps updating in notebook

[naperman]

I'm running the SionnaRT Intro notebook.

There are several calls to scene.preview() in the following order as we progress through the cells:

1. Just the imported and loaded scene
2. Scene + Transmitter + Receiver
3. Scene + Transmitter + Receiver + Computed paths
4. Scene + Transmitter + Receiver + Computed paths + Coverage Map

and so on.

The problem is when we reach say the i'th preview, then all the previous previews are updated with the contents of i'th preview. For example, when we get to the coverage map preview(4th), the first preview which ought to show only the plain loaded scene, is showing everything including tx/rx locations, paths and coverage map.

This happen even when i set the following options for the first preview to disable tx/rx, computed paths and coverage map.
scene.preview(show_paths=False, show_devices=False, show_orientations=False, coverage_map=None)

Is there any way to show only what is required in each preview call without letting subsequent preview call update the previous previews?

I'm using sionna v0.19 and running the notebook on vscode 1.94.2.

[merlinND]

Hello @naperman,

Currently this is the expected behavior because there's a single "preview widget" that gets reused in each call to scene.preview().
However I understand your point, and we may consider changing this behavior in a future version. I'll leave this issue open as a reminder.