René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"set_position on Annotation is not working","articleBody":"`annotation.set_position(...)` is not working in versions `1.2.1`, `1.3.0` nor on the `master`.\n\nHere is an example that demonstrates this.\n\n``` python\nimport numpy as np\nimport matplotlib.pyplot as plt\nimport matplotlib.animation as animation\n\n# Create initial data\ndata = np.array([[1,2,3,4,5], [7,4,9,2,3]])\n\n# Create figure and axes\nfig = plt.figure()\nax = plt.axes(xlim=(0, 20), ylim=(0, 20))\n\n# Create initial objects\nline, = ax.plot([], [], 'r-')\nannotation = ax.annotate('A0', xy=(data[0][0], data[1][0]))\nannotation.set_animated(True)\n\ndef init():\n    return line, annotation\n\ndef update(num):\n    newData = np.array([[1 + num, 2 + num / 2, 3, 4 - num / 4, 5 + num],\n                        [7, 4, 9 + num / 3, 2, 3]])\n    line.set_data(newData)\n    # This is not working but in docs it is described as a setter\n    # annotation.set_position((newData[0][0], newData[1][0]))\n    # This works but this is described in docs as getter\n    annotation.xytext = (newData[0][0], newData[1][0])\n    return line, annotation\n\nanim = animation.FuncAnimation(fig, update, frames=25, init_func=init,\n                               interval=200, blit=True)\nplt.show()\n```\n\nSO Question where the bug was discovered: [Animate points with labels with mathplotlib](http://stackoverflow.com/questions/18351932/animate-points-with-labels-with-mathplotlib/18356224)\n","author":{"url":"https://github.com/alefnula","@type":"Person","name":"alefnula"},"datePublished":"2013-08-22T12:38:19.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/2329/matplotlib/issues/2329"}