.. _sphx_glr_gallery_images_contours_and_fields_barcode_demo.py: ============ Barcode Demo ============ .. image:: /gallery/images_contours_and_fields/images/sphx_glr_barcode_demo_001.png :align: center .. code-block:: python import matplotlib.pyplot as plt import numpy as np # Fixing random state for reproducibility np.random.seed(19680801) # the bar x = np.where(np.random.rand(500) > 0.7, 1.0, 0.0) axprops = dict(xticks=[], yticks=[]) barprops = dict(aspect='auto', cmap=plt.cm.binary, interpolation='nearest') fig = plt.figure() # a vertical barcode -- this is broken at present ax = fig.add_axes([0.1, 0.3, 0.1, 0.6], **axprops) ax.imshow(x.reshape((-1, 1)), **barprops) # a horizontal barcode ax = fig.add_axes([0.3, 0.1, 0.6, 0.1], **axprops) ax.imshow(x.reshape((1, -1)), **barprops) plt.show() **Total running time of the script:** ( 0 minutes 0.035 seconds) .. only :: html .. container:: sphx-glr-footer .. container:: sphx-glr-download :download:`Download Python source code: barcode_demo.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: barcode_demo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature `Gallery generated by Sphinx-Gallery `_