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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"'pivot' property not recognised in quiver","articleBody":"When I try to set the 'pivot' kw argument to any value, the result is:\n\n```\nTraceback (most recent call last):\n  File \"plotInpTrajOut_LocBag.py\", line 265, in \u003cmodule\u003e\n    ax.quiver(x,y,z,u,v,w,length=0.2,color=colors[guid_nb],pivot='tail')\n  File \"/usr/lib/python2.7/dist-packages/mpl_toolkits/mplot3d/axes3d.py\", line 2614, in quiver\n    linec = art3d.Line3DCollection(lines, *args[argi:], **kwargs)\n  File \"/usr/lib/python2.7/dist-packages/mpl_toolkits/mplot3d/art3d.py\", line 171, in __init__\n    LineCollection.__init__(self, segments, *args, **kwargs)\n  File \"/usr/lib/python2.7/dist-packages/matplotlib/collections.py\", line 1060, in __init__\n    **kwargs)\n  File \"/usr/lib/python2.7/dist-packages/matplotlib/collections.py\", line 132, in __init__\n    self.update(kwargs)\n  File \"/usr/lib/python2.7/dist-packages/matplotlib/artist.py\", line 757, in update\n    raise AttributeError('Unknown property %s' % k)\nAttributeError: Unknown property pivot\n```\n\nI'm using matplotlib 1.4.2-3 under debian\nBTW, it seems to me that the documentation on possible 'pivot' values is not consistent.\n\nHope it helps!\n","author":{"url":"https://github.com/szymk","@type":"Person","name":"szymk"},"datePublished":"2014-12-11T09:59:43.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/3907/matplotlib/issues/3907"}