René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"bad autoscale_view() with long curved FancyArrowPatch","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\n### Bug report\r\n\r\nWhen using a very long `FancyArrowPatch` with `connectionstyle=\"arc3\"`, subsequent axes autoscaling can badly squash the figure's content. Example below exhibits the problem, but more extreme squashing can easily be obtained. Possibly this is not limited to `FancyArrowPatch`?\r\n\r\n**Code for reproduction**\r\n\r\n```python\r\nimport matplotlib\r\nimport matplotlib.pyplot as plt\r\n\r\nfap = matplotlib.patches.FancyArrowPatch(\r\n    (10, 10),\r\n    (20, 2e4),\r\n    mutation_scale=50,\r\n    connectionstyle=\"arc3,rad=0.3\",\r\n)\r\n\r\n_, ax = plt.subplots()\r\nax.add_patch(fap)\r\nax.set_title(f\"matplotlib {matplotlib.__version__}\")\r\nax.autoscale_view()\r\nax.figure.savefig(\"curved-arrow.png\")\r\n```\r\n\r\n**Actual outcome**\r\n\r\n\u003c!--The output produced by the above code, which may be a screenshot, console output, etc.--\u003e\r\n\r\n![curved-arrow](https://user-images.githubusercontent.com/8665077/111459663-45cf1c80-871b-11eb-9255-cf475ef1725b.png)\r\n\r\n**Expected outcome**\r\n\r\nThe axes view should span the drawn content. Any control point(s) required for the arc should be ignored.\r\n\r\n**Matplotlib version**\r\n\u003c!--Please specify your platform and versions of the relevant libraries you are using:--\u003e\r\n  * Operating system: Linux\r\n  * Matplotlib version: 3.3.4\r\n  * Matplotlib backend: Reproducible with at least `GTK3Agg` and `agg`.\r\n  * Python version: 3.9\r\n\r\n\u003c!--Please tell us how you installed matplotlib and python e.g., from source, pip, conda--\u003e\r\n\u003c!--If you installed from conda, please specify which channel you used if not the default--\u003e\r\n\r\nMatplotlib installed via pip.","author":{"url":"https://github.com/grahamgower","@type":"Person","name":"grahamgower"},"datePublished":"2021-03-17T11:31:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/19723/matplotlib/issues/19723"}