plot has a transparent plane after turning clip plane off

[callaway-chris-yang]

Hello Everyone,

I implemented the 3D rendering app with PyVisata + Trame. I have a toggle button to turn on/off clip plane. Here is the code how to control it. I add this callback function to the toggle component.

def update_plot_by_clip_plane_toggle(plotter: pv.Plotter, ctrl,selected_mesh, clip_enabled):
    plotter.clear()

    time.sleep(1)
    
    if clip_enabled:
        plotter.add_mesh_clip_plane(selected_mesh, scalars="stress", cmap="jet")
    else:
        plotter.add_mesh(selected_mesh, scalars="stress", cmap="jet")
    plotter.reset_camera()
    ctrl.view_update()

It could load clip plane and re-load the mesh if I dont want to show the clip plane.

But, when I first load the clip plane, then turn it off to re-load the mesh. Sometimes, when I rotate the mesh, I could see a nearly transparent plane on the plot, preventing me from dragging/rotating the mesh.

Is that because I didnt clear the plotter and widgets completely?

Any thoughts would be helpful.

Thank you so much.

[alesgenova]

Looking at the pyvista docs, it says that plotter.clear() "clears plot by removing all actors and properties".

I would expect it to also remove the widget, but since it's not stated explicitly, can you try also invoking plotter.clear_plane_widgets()?

[callaway-chris-yang]

Thank you so much for the reply. I think that is probably the root cause. I added the clear_plane_widgets() now, and feel like the plane is gone. I will keep using it for a while and give you a final confirm on that.