René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[DOC]: clarify that `markevery[float]` considers path length along drawn line","articleBody":"### Bug summary\n\n`markevery[float]` is supposed to result in evenly distributed markers, but when y-data is noisy, its effect seems to \"gradually\" fade away.\n\n### Code for reproduction\n\n```Python\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\n\r\nx = np.linspace(1e3, 1e7, 1000)\r\n\r\nfig, ax = plt.subplots(nrows=3, ncols=3, figsize=(9, 9), layout=\"constrained\")\r\n\r\nfor i, ax_i in enumerate(ax.flatten()):\r\n    ax_i.set_title(f\"noise level = {i/5:.1f}\")\r\n    y = np.exp(x**0.1) + np.random.rand(len(x)) * i/2\r\n    ax_i.plot(x, y, 'b.-', markevery=0.1, ms=10, markerfacecolor=\"r\")\r\n    ax_i.set_xscale(\"log\")\r\n    ax_i.set_yscale(\"log\")\n```\n\n\n### Actual outcome\n\n![image](https://github.com/matplotlib/matplotlib/assets/14086031/dd0956c8-49dc-4f3d-a002-6a260bb798d6)\r\n\n\n### Expected outcome\n\nAll subplots be like the one with 0 noise level.\n\n### Additional information\n\n_No response_\n\n### Operating system\n\nUbuntu\n\n### Matplotlib Version\n\n3.8.3\n\n### Matplotlib Backend\n\nmatplotlib_inline.backend_inline\n\n### Python version\n\n3.10.13\n\n### Jupyter version\n\n_No response_\n\n### Installation\n\npip","author":{"url":"https://github.com/ma-sadeghi","@type":"Person","name":"ma-sadeghi"},"datePublished":"2024-03-01T10:28:07.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":16},"url":"https://github.com/27842/matplotlib/issues/27842"}