.. only:: html .. note:: :class: sphx-glr-download-link-note Click :ref:`here ` to download the full example code .. rst-class:: sphx-glr-example-title .. _sphx_glr_gallery_event_handling_coords_demo.py: =========== Coords demo =========== An example of how to interact with the plotting canvas by connecting to move and click events. .. image:: /gallery/event_handling/images/sphx_glr_coords_demo_001.png :alt: coords demo :class: sphx-glr-single-img .. code-block:: default from matplotlib.backend_bases import MouseButton import matplotlib.pyplot as plt import numpy as np t = np.arange(0.0, 1.0, 0.01) s = np.sin(2 * np.pi * t) fig, ax = plt.subplots() ax.plot(t, s) def on_move(event): # get the x and y pixel coords x, y = event.x, event.y if event.inaxes: ax = event.inaxes # the axes instance print('data coords %f %f' % (event.xdata, event.ydata)) def on_click(event): if event.button is MouseButton.LEFT: print('disconnecting callback') plt.disconnect(binding_id) binding_id = plt.connect('motion_notify_event', on_move) plt.connect('button_press_event', on_click) plt.show() .. _sphx_glr_download_gallery_event_handling_coords_demo.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download sphx-glr-download-python :download:`Download Python source code: coords_demo.py ` .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: coords_demo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_