René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: twinx and twiny ignores previous set_position","articleBody":"### Bug summary\n\nIf I manually set the position of an Axes, then call twinx or twiny, the new twinned Axes appears in the original position of the parent Axes, not in the new position.\n\n### Code for reproduction\n\n```python\nimport matplotlib.pyplot as plt\r\nfig, ax = plt.subplots()\r\nax.set_position([0.2,0.2,0.5,0.5])\r\nax2 = ax.twinx()\r\nplt.show()\n```\n\n\n### Actual outcome\n\n![MPL_Bug_Image](https://user-images.githubusercontent.com/51108483/138197926-c1dc8d1b-e36c-4089-a1dd-073bf6c61ca7.png)\r\n\r\nI note that `ax.get_position(original=True)` and `ax.get_position(original=False)` both give the same answer.\r\nI also note that the same issue occurs for `ax.twiny()`.\n\n### Expected outcome\n\n![MPL_Bug_Expected](https://user-images.githubusercontent.com/51108483/138198030-c9e091d9-3475-4413-9908-7cdd22028e7e.png)\r\nThis expected outcome can be obtained by adding the line\r\n```python3\r\nax2.set_position(ax.get_position())\r\n```\r\nafter calling `ax2=ax.twinx()`. Alternatively, it can be obtained by calling `ax.set_position` after calling `ax.twinx`.\r\nHowever, I would expect `twinx` to automatically inherit the position of the parent Axes, rather than draw the new Axes in an unrelated location.\n\n### Operating system\n\nWindows 10\n\n### Matplotlib Version\n\n3.4.2\n\n### Matplotlib Backend\n\nTkAgg\n\n### Python version\n\n3.9.4\n\n### Jupyter version\n\n_No response_\n\n### Other libraries\n\n_No response_\n\n### Installation\n\npip\n\n### Conda channel\n\n_No response_","author":{"url":"https://github.com/bfield1","@type":"Person","name":"bfield1"},"datePublished":"2021-10-21T02:05:36.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/21409/matplotlib/issues/21409"}