Clearing a Mesh or the Entire Plot

This example demonstrates how to remove elements from a scene.

import pyvista as pv

plotter = pv.Plotter()
actor = plotter.add_mesh(pv.Sphere())
plotter.remove_actor(actor)
plotter.show()

Clearing the entire plotting window:

plotter = pv.Plotter()
plotter.add_mesh(pv.Sphere())
plotter.add_mesh(pv.Plane())
plotter.clear()  # clears all actors
plotter.show()

Or you can give any actor a name when adding it and if an actor is added with that same name at a later time, it will replace the previous actor:

plotter = pv.Plotter()
plotter.add_mesh(pv.Sphere(), name="mymesh")
plotter.add_mesh(pv.Plane(), name="mymesh")
# Only the Plane is shown.
plotter.show()