""" .. _distance_measurement_example: Measuring distance ~~~~~~~~~~~~~~~~~~ This example demonstrates how to measure distance between two points. :func:`add_measurement_widget() `. """ from __future__ import annotations import pyvista as pv cube = pv.Cube() cube2 = pv.Cube(center=[10, 10, 0]) pl = pv.Plotter() pl.add_mesh(cube) pl.add_mesh(cube2) def callback(a, b, distance): # noqa: ARG001 pl.add_text(f'Distance: {distance:.2f}', name='dist') pl.add_measurement_widget(callback) pl.show() # %% # .. tags:: plot