René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[ENH]: Zooming single axis","articleBody":"### Problem\n\nNow that #30405 is merged, we can think about extending the functionality for single-axis zoom.\n\n### Proposed solution\n\n Possible approaches:\n\n- **Use additional modifiers:** I don't think there are standard conventions as most applications have fixes aspects and don't need to zoom in different axis. My proposal would be\n  - `Ctrl+Wheel` zoom both axis\n  - `Shift+Wheel` zoom y\n  - `Alt+Wheel` zoom x\n  Rationale: adding additional modifiers `Ctrl+Shift+Wheel` is cumbersome to use and does not add another benefit, so just replace the modifier. Mnemonic from the keyboard layout\n  ```\n  \u003cShift\u003e\n  \u003cCtrl\u003e   \u003cAlt\u003e\n  ```\n  so `Shift` is on the vertical `Alt` is on the horizontal.\n\n- **Use special regions:** Limit scroll to one direction for `Ctrl+Wheel` if the cursor is over an axis. This would be quite neat, but I think we do not have a good \"over an axis definition. Picking the spine is too fiddly. We'd need area outside the axis includding the ticks. Something like this. But I think we have no efficent way to determine that.\n  \u003cimg width=\"582\" height=\"439\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/70d85e25-e039-46b5-9ffb-2bb22b867d2a\" /\u003e\n\nFeedback welcome.","author":{"url":"https://github.com/timhoffm","@type":"Person","name":"timhoffm"},"datePublished":"2025-09-10T08:20:24.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":13},"url":"https://github.com/30541/matplotlib/issues/30541"}