.. _animation-moviewriter: animation example code: moviewriter.py ====================================== [`source code `_] :: """ =========== MovieWriter =========== This example uses a MovieWriter directly to grab individual frames and write them to a file. This avoids any event loop integration, but has the advantage of working with even the Agg backend. This is not recommended for use in an interactive setting. """ # -*- noplot -*- import numpy as np import matplotlib matplotlib.use("Agg") import matplotlib.pyplot as plt import matplotlib.animation as manimation FFMpegWriter = manimation.writers['ffmpeg'] metadata = dict(title='Movie Test', artist='Matplotlib', comment='Movie support!') writer = FFMpegWriter(fps=15, metadata=metadata) fig = plt.figure() l, = plt.plot([], [], 'k-o') plt.xlim(-5, 5) plt.ylim(-5, 5) x0, y0 = 0, 0 with writer.saving(fig, "writer_test.mp4", 100): for i in range(100): x0 += 0.1 * np.random.randn() y0 += 0.1 * np.random.randn() l.set_data(x0, y0) writer.grab_frame() Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)