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