.. 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_shapes_and_collections_ellipse_collection.py: ================== Ellipse Collection ================== Drawing a collection of ellipses. While this would equally be possible using a `~.collections.EllipseCollection` or `~.collections.PathCollection`, the use of an `~.collections.EllipseCollection` allows for much shorter code. .. code-block:: default import matplotlib.pyplot as plt import numpy as np from matplotlib.collections import EllipseCollection x = np.arange(10) y = np.arange(15) X, Y = np.meshgrid(x, y) XY = np.column_stack((X.ravel(), Y.ravel())) ww = X / 10.0 hh = Y / 15.0 aa = X * 9 fig, ax = plt.subplots() ec = EllipseCollection(ww, hh, aa, units='x', offsets=XY, transOffset=ax.transData) ec.set_array((X + Y).ravel()) ax.add_collection(ec) ax.autoscale_view() ax.set_xlabel('X') ax.set_ylabel('y') cbar = plt.colorbar(ec) cbar.set_label('X+Y') plt.show() .. image:: /gallery/shapes_and_collections/images/sphx_glr_ellipse_collection_001.png :class: sphx-glr-single-img ------------ References """""""""" The use of the following functions, methods, classes and modules is shown in this example: .. code-block:: default import matplotlib matplotlib.collections matplotlib.collections.EllipseCollection matplotlib.axes.Axes.add_collection matplotlib.axes.Axes.autoscale_view matplotlib.cm.ScalarMappable.set_array .. rst-class:: sphx-glr-script-out Out: .. code-block:: none .. _sphx_glr_download_gallery_shapes_and_collections_ellipse_collection.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: ellipse_collection.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: ellipse_collection.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_