René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"inset_locator.inset_axes produces axes without extent and at incorrect position.","articleBody":"The `mpl_toolkits.axes_grid1.inset_locator.inset_axes` is not working as expected when using the `bbox_to_anchor` argument. Using `inset_axes(ax, width=\"70%\", height=\"30%\",bbox_to_anchor=(0.4,0.1), loc=3)` gives an inset axes without extention at an incorrect position. (This issue is raised in [this stackoverflow post](https://stackoverflow.com/questions/45378918/specific-location-for-inset-axes).)\r\n\r\nComplete example:\r\n```\r\nimport matplotlib.pyplot as plt\r\nfrom mpl_toolkits.axes_grid1.inset_locator import inset_axes\r\nplt.rcParams[\"figure.figsize\"] = 4,3\r\n\r\nfig, ax= plt.subplots()\r\n\r\niax =inset_axes(ax, width=\"70%\", height=\"30%\", bbox_to_anchor=(0.4,0.1), loc=3)\r\n\r\niax.plot([1,2,4])\r\nplt.show()\r\n\r\n```\r\n\r\ngives \r\n\r\n![image](https://user-images.githubusercontent.com/23121882/28733554-fde93414-73dc-11e7-8a25-93920c7ae3e3.png)\r\n\r\nand a warning\r\n\r\n``c:\\winpython\\winpython-64bit-2.7.10.3\\python-2.7.10.amd64\\lib\\site-packages\\matplotlib\\axis.py:1035: UserWarning: Unable to find pixel distance along axis for interval padding of ticks; assuming no interval padding needed.``\r\n\r\nwhen being run with python 2.7, matplotlib 2.0.2. In the lower left corner of the image you see what I suppose are the ticks of the zero-sized axes. Since the documentation clearly states that `width` and `height` can be strings (and they actually can be if `bbox_to_anchor` is ommited) and since the default `bbox_transform` is `parent_axes.transAxes`, the above is clearly expected to work.\r\n\r\nNote that when explicitely supplying the `bbox_transform` we at least get the axes at the correct position, \r\n\r\n```\r\niax =inset_axes(ax, width=\"70%\", height=\"30%\", bbox_to_anchor=(0.4,0.1), \r\n                         loc=3, bbox_transform=ax.transAxes)\r\n```\r\n\r\n![image](https://user-images.githubusercontent.com/23121882/28734012-28c4a090-73df-11e7-81c6-b665b2e530ee.png)\r\n\r\nwhile width and height are further ignored.\r\n\r\nIs this an error in the documentation or a bug in the matplotlib code?\r\n\r\nThe **expected outcome** of the above would be an inset axes with the lower left corner at (0.4,0.1) in axes coordinates and a width of 0.3 and a height of 0.7 (also in normalized axes units) as shown in the below image (which is produced by other means than `inset_axes`):\r\n\r\n![image](https://user-images.githubusercontent.com/23121882/28733444-7ad03546-73dc-11e7-9d8c-9deeedb1cd63.png)\r\n\r\n","author":{"url":"https://github.com/ImportanceOfBeingErnest","@type":"Person","name":"ImportanceOfBeingErnest"},"datePublished":"2017-07-28T19:58:35.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/8952/matplotlib/issues/8952"}