QtInteractor can no longer be used with qt-designer

[truenicoco]

Before pyvista 0.24.0, I could use qt-designer to design my UI and promote a widget to pv.QtInteractor.

It is probably the expected behaviour, but this version makes it impossible to do that.

Also, If I want to remove/re-add the widget, which I have to do because I dynamically want to change the number of subplots in my app, I must be careful to use the interactor attribute of the pv.QtInteractor instance and not the instance directly.

I do not expect this to change, but since it took me a while to figure out what was happening, I thought I would write it here…

My fix was to create a simple QWidget in qt-designer, and basically call this on window create and every time I want to update the number of subplots.

def update_subplots(main_window):
    # Awful hacks because pv.QtInteractor no longer heritates from QtWidget
    try:
        main_window.vlayout.removeWidget(main_window.pv_plotter.interactor)
    except AttributeError:
        main_window.vlayout.removeWidget(main_window.pv_plotter)
    del main_window.pv_plotter

I am sure there is a better way to do that, but it works…

Adding/removing subplots dynamically would be a great feature BTW.

[akaszynski]

Thanks for your interest with pyvista. pyvista==0.24.0 had some big changes with the way we implemented QtInteractor, and I can see why it broke. Let me see if I can add update_subplots to the background plotter or QtInteractor.

[truenicoco]

Any news on this? I should have replied earlier, this would be a great feature. It seems that my awful hack is leaking memory all over the place…

[akaszynski]

Sorry, been busy with other PRs. Would you mind opening up a PR for this?

[truenicoco]

I think there is a misunderstanding, I did not develop anything usable, so I can't make a PR for this. ☺ Maybe you meant a feature request ?

[GuillaumeFavelier]

Could you try again with current master (37e921b) @truenicoco ? I believe this should be fixed by #25