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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"the limits of axes are inexact with mplot3d","articleBody":"\u003c!--To help us understand and resolve your issue, please fill out the form to the best of your ability.--\u003e\r\n\u003c!--You can feel free to delete the sections that do not apply.--\u003e\r\n\r\nI take an example from\r\nhttps://stackoverflow.com/questions/23951230/python-axis-limit-in-matplotlib\r\n\r\nIn mplot3d, when you set, for example, `set_xlim(0, 0.8)`, the outcome has an extra like `set_xlim(0 - eps, 0.8 + eps)`, where eps is related to `deltas`.\r\nhttps://github.com/matplotlib/matplotlib/blob/6e76411a4f3e4cc54cae562529d8973fc12e4497/lib/mpl_toolkits/mplot3d/axis3d.py#L187\r\n\r\nTo show the exact lims, you have to change `deltas` to, for example, `0 * (maxs - mins) / 12.`\r\n\r\nYou need something to set exact lims without touching the inside of matplotlib.\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nfrom mpl_toolkits.mplot3d import Axes3D\r\nimport matplotlib.pyplot as plt\r\nfig = plt.figure()\r\nax = fig.gca(projection = '3d')\r\nax.set_xlim(0,0.8)\r\nplt.show()\r\n```\r\n\r\n**Actual outcome**\r\n![fig](https://user-images.githubusercontent.com/18307308/88422611-7f1de980-ce25-11ea-8125-9c795bd0b138.png)\r\n\r\n**Matplotlib version**\r\n  * Operating system:macOS 10.14.6\r\n  * Matplotlib version: 3.1.1\r\n  * Python version: 3.7.4\r\n\r\nThe problem was discussed many times in STACK OVERFLOW:\r\nhttps://stackoverflow.com/questions/23951230/python-axis-limit-in-matplotlib\r\nhttps://stackoverflow.com/questions/46380464/matplotlib-3d-axis-bounds-always-too-large-doesnt-set-lims-correctly\r\nhttps://stackoverflow.com/questions/16488182/removing-axes-margins-in-3d-plot","author":{"url":"https://github.com/ultimatile","@type":"Person","name":"ultimatile"},"datePublished":"2020-07-24T18:52:59.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/18052/matplotlib/issues/18052"}