.. 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_images_contours_and_fields_contourf_hatching.py: ================= Contourf Hatching ================= Demo filled contour plots with hatched patterns. .. code-block:: default import matplotlib.pyplot as plt import numpy as np # invent some numbers, turning the x and y arrays into simple # 2d arrays, which make combining them together easier. x = np.linspace(-3, 5, 150).reshape(1, -1) y = np.linspace(-3, 5, 120).reshape(-1, 1) z = np.cos(x) + np.sin(y) # we no longer need x and y to be 2 dimensional, so flatten them. x, y = x.flatten(), y.flatten() Plot 1: the simplest hatched plot with a colorbar .. code-block:: default fig1, ax1 = plt.subplots() cs = ax1.contourf(x, y, z, hatches=['-', '/', '\\', '//'], cmap='gray', extend='both', alpha=0.5) fig1.colorbar(cs) .. image:: /gallery/images_contours_and_fields/images/sphx_glr_contourf_hatching_001.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-script-out Out: .. code-block:: none Plot 2: a plot of hatches without color with a legend .. code-block:: default fig2, ax2 = plt.subplots() n_levels = 6 ax2.contour(x, y, z, n_levels, colors='black', linestyles='-') cs = ax2.contourf(x, y, z, n_levels, colors='none', hatches=['.', '/', '\\', None, '\\\\', '*'], extend='lower') # create a legend for the contour set artists, labels = cs.legend_elements() ax2.legend(artists, labels, handleheight=2) plt.show() .. image:: /gallery/images_contours_and_fields/images/sphx_glr_contourf_hatching_002.png :class: sphx-glr-single-img ------------ References """""""""" The use of the following functions, methods and classes is shown in this example: .. code-block:: default import matplotlib matplotlib.axes.Axes.contour matplotlib.pyplot.contour matplotlib.axes.Axes.contourf matplotlib.pyplot.contourf matplotlib.figure.Figure.colorbar matplotlib.pyplot.colorbar matplotlib.axes.Axes.legend matplotlib.pyplot.legend matplotlib.contour.ContourSet matplotlib.contour.ContourSet.legend_elements .. rst-class:: sphx-glr-script-out Out: .. code-block:: none .. _sphx_glr_download_gallery_images_contours_and_fields_contourf_hatching.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: contourf_hatching.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: contourf_hatching.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_