.. 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_lines_bars_and_markers_eventcollection_demo.py:
====================
EventCollection Demo
====================
Plot two curves, then use EventCollections to mark the locations of the x
and y data points on the respective axes for each curve
.. image:: /gallery/lines_bars_and_markers/images/sphx_glr_eventcollection_demo_001.png
:alt: line plot with data points
:class: sphx-glr-single-img
.. code-block:: default
import matplotlib.pyplot as plt
from matplotlib.collections import EventCollection
import numpy as np
# Fixing random state for reproducibility
np.random.seed(19680801)
# create random data
xdata = np.random.random([2, 10])
# split the data into two parts
xdata1 = xdata[0, :]
xdata2 = xdata[1, :]
# sort the data so it makes clean curves
xdata1.sort()
xdata2.sort()
# create some y data points
ydata1 = xdata1 ** 2
ydata2 = 1 - xdata2 ** 3
# plot the data
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(xdata1, ydata1, color='tab:blue')
ax.plot(xdata2, ydata2, color='tab:orange')
# create the events marking the x data points
xevents1 = EventCollection(xdata1, color='tab:blue', linelength=0.05)
xevents2 = EventCollection(xdata2, color='tab:orange', linelength=0.05)
# create the events marking the y data points
yevents1 = EventCollection(ydata1, color='tab:blue', linelength=0.05,
orientation='vertical')
yevents2 = EventCollection(ydata2, color='tab:orange', linelength=0.05,
orientation='vertical')
# add the events to the axis
ax.add_collection(xevents1)
ax.add_collection(xevents2)
ax.add_collection(yevents1)
ax.add_collection(yevents2)
# set the limits
ax.set_xlim([0, 1])
ax.set_ylim([0, 1])
ax.set_title('line plot with data points')
# display the plot
plt.show()
.. _sphx_glr_download_gallery_lines_bars_and_markers_eventcollection_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: eventcollection_demo.py `
.. container:: sphx-glr-download sphx-glr-download-jupyter
:download:`Download Jupyter notebook: eventcollection_demo.ipynb `
.. only:: html
.. rst-class:: sphx-glr-signature
Keywords: matplotlib code example, codex, python plot, pyplot
`Gallery generated by Sphinx-Gallery
`_