.. 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_rasterization_demo.py: ================== Rasterization Demo ================== .. image:: /gallery/misc/images/sphx_glr_rasterization_demo_001.png :class: sphx-glr-single-img .. rst-class:: sphx-glr-script-out Out: .. code-block:: none The PostScript backend does not support transparency; partially transparent artists will be rendered opaque. | .. code-block:: default import numpy as np import matplotlib.pyplot as plt d = np.arange(100).reshape(10, 10) x, y = np.meshgrid(np.arange(11), np.arange(11)) theta = 0.25*np.pi xx = x*np.cos(theta) - y*np.sin(theta) yy = x*np.sin(theta) + y*np.cos(theta) fig, ((ax1, ax2), (ax3, ax4)) = plt.subplots(2, 2) ax1.set_aspect(1) ax1.pcolormesh(xx, yy, d) ax1.set_title("No Rasterization") ax2.set_aspect(1) ax2.set_title("Rasterization") m = ax2.pcolormesh(xx, yy, d) m.set_rasterized(True) ax3.set_aspect(1) ax3.pcolormesh(xx, yy, d) ax3.text(0.5, 0.5, "Text", alpha=0.2, va="center", ha="center", size=50, transform=ax3.transAxes) ax3.set_title("No Rasterization") ax4.set_aspect(1) m = ax4.pcolormesh(xx, yy, d) m.set_zorder(-20) ax4.text(0.5, 0.5, "Text", alpha=0.2, zorder=-15, va="center", ha="center", size=50, transform=ax4.transAxes) ax4.set_rasterization_zorder(-10) ax4.set_title("Rasterization z$<-10$") # ax2.title.set_rasterized(True) # should display a warning plt.savefig("test_rasterization.pdf", dpi=150) plt.savefig("test_rasterization.eps", dpi=150) if not plt.rcParams["text.usetex"]: plt.savefig("test_rasterization.svg", dpi=150) # svg backend currently ignores the dpi .. _sphx_glr_download_gallery_misc_rasterization_demo.py: .. only :: html .. container:: sphx-glr-footer :class: sphx-glr-footer-example .. container:: sphx-glr-download :download:`Download Python source code: rasterization_demo.py ` .. container:: sphx-glr-download :download:`Download Jupyter notebook: rasterization_demo.ipynb ` .. only:: html .. rst-class:: sphx-glr-signature Keywords: matplotlib code example, codex, python plot, pyplot `Gallery generated by Sphinx-Gallery `_