René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[Bug]: savefig(bbox_inches='tight') clips axis labels on 3D axes","articleBody":"### Bug summary\n\n`savefig(bbox_inches='tight') `clips the `zlabel` and `xlabel` on 3D axes. This happens because `Axes3D.get_tightbbox() `does not include axis labels in its bounding box calculation. On 2D axes this works correctly.\n\n### Code for reproduction\n\n```Python\nimport matplotlib.pyplot as plt\n\nfig = plt.figure(figsize=(3, 3))\nax = fig.add_subplot(1, 1, 1, projection='3d')\nax.plot([0, 1], [0, 1], [0, 1])\nax.set_zlabel(\"Z axis label\")\nax.set_xlabel(\"X axis label\")\n\nfig.savefig(\"3d_tight.png\", bbox_inches='tight')\n```\n\n### Actual outcome\n\n`zlabel `and `xlabel `are clipped at the edges of the saved image.\n\n \n\n\u003cimg width=\"327\" height=\"351\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/cc98532a-99a4-42f6-9677-f5e65ff0dced\" /\u003e\n\nConfirmed numerically:\n```\ntightbbox:  x1=296.0\nzlabel x1=321.2  →  25px outside tightbbox on the right\nxlabel y0=1.0   →  12px outside tightbbox at the bottom\n```\n\n### Expected outcome\n\nExpected outcome\nLabels should be fully visible, as they are when saving without`\n\n\u003cimg width=\"480\" height=\"360\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/7242bd8f-77c5-49ab-ae64-32cf62618425\" /\u003e\n\n`.\n\nOn 2D axes, `get_tightbbox`() always includes xlabel  `tightbbox.y0 == xlabel.y0`. On 3D it does not.\n\n### Additional information\n\nRelated to the broader known issue of 3D axes not fully contributing to bounding box calculations, noted by @QuLogic in #31277. This specific symptom  axis labels excluded from `get_tightbbox()`  produces a concrete user-visible artifact in saved figures.\n\n### Operating system\n\n_No response_\n\n### Matplotlib Version\n\n3.10.8\n\n### Matplotlib Backend\n\nAgg\n\n### Python version\n\n_No response_\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\npip","author":{"url":"https://github.com/buddy0452004","@type":"Person","name":"buddy0452004"},"datePublished":"2026-04-25T07:05:49.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/31568/matplotlib/issues/31568"}