.. 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_misc_agg_buffer_to_array.py: =================== Agg Buffer To Array =================== Convert a rendered figure to its image (NumPy array) representation. .. image:: /gallery/misc/images/sphx_glr_agg_buffer_to_array_001.png :alt: agg buffer to array :class: sphx-glr-single-img .. code-block:: default import matplotlib.pyplot as plt import numpy as np from matplotlib.figure import Figure from matplotlib.backends.backend_agg import FigureCanvas # Create a figure that pyplot does not know about. fig = Figure() # attach a non-interactive Agg canvas to the figure # (as a side-effect of the ``__init__``) canvas = FigureCanvas(fig) ax = fig.subplots() ax.plot([1, 2, 3]) ax.set_title('a simple figure') # Force a draw so we can grab the pixel buffer canvas.draw() # grab the pixel buffer and dump it into a numpy array X = np.array(canvas.renderer.buffer_rgba()) # now display the array X as an Axes in a new figure fig2 = plt.figure() ax2 = fig2.add_subplot(111, frameon=False) ax2.imshow(X) plt.show() .. _sphx_glr_download_gallery_misc_agg_buffer_to_array.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: agg_buffer_to_array.py ` .. container:: sphx-glr-download sphx-glr-download-jupyter :download:`Download Jupyter notebook: agg_buffer_to_array.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_