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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"axes3d.py error when using lines3d and surface3d demos ","articleBody":"Hi, I recently grabbed the 1.5.x version of matplotlib from github and get some errors when using the 3d plotting demos on the matplotlib website. See below for an output. I am running python 2.7.8_2 from homebrew. I get the same error for both demo scripts. Has something changed in 1.5.x such that the demos are calling things differently?\n\nThe plotting window appears but shows nothing inside, accept for a line along the x axis at z=0. See image attached. \n\nCheers\nJames\n\nMac OS X 10.10.1 Yosemite\n\n``` python\nJames@Jamess-MBP\u003e python -i lines3d_demo.py\nTraceback (most recent call last):\n  File \"/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.5.x-py2.7-macosx-10.10-x86_64.egg/matplotlib/artist.py\", line 59, in draw_wrapper\n    draw(artist, renderer, *args, **kwargs)\n  File \"/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib-1.5.x-py2.7-macosx-10.10-x86_64.egg/matplotlib/figure.py\", line 1090, in draw\n    func(*args)\n  File \"/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axes3d.py\", line 273, in draw\n    ax.draw(renderer)\n  File \"/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axis3d.py\", line 264, in draw\n    self.axes.transAxes.transform(peparray[0:2, 0]))\nValueError: Expected 2-dimensional array, got 1\n```\n\nafter a few seconds with the figure open this appears:\n\n``` python\n/usr/local/Cellar/python/2.7.8_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/mpl_toolkits/mplot3d/axes3d.py:1094: FutureWarning: comparison to `None` will result in an elementwise object comparison in the future.\n  if self.button_pressed in self._rotate_btn:\n```\n\n![screen shot 2014-12-07 at 11 00 06](https://cloud.githubusercontent.com/assets/1912007/5330720/5b9cae90-7e00-11e4-9e01-e89e7d929440.png)\n\n[TAC edited formatting]\n","author":{"url":"https://github.com/jmccormac01","@type":"Person","name":"jmccormac01"},"datePublished":"2014-12-07T10:57:47.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/3898/matplotlib/issues/3898"}