René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Extra ticks at an extended part of colorbar","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\nExtra minorticks appear at an extended part of colorbar with `ticks=LogLocator(numticks=10, subs='all')`.\r\n\r\n\u003c!--A short 1-2 sentences that succinctly describes the bug--\u003e\r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug.\r\nPlease make sure to minimize the number of dependencies required, and provide\r\nany necessary plotted data.\r\nAvoid using threads, as Matplotlib is (explicitly) not thread-safe.--\u003e\r\n\r\n```python\r\n%matplotlib inline\r\n\r\nimport numpy as np\r\nimport matplotlib.pyplot as plt\r\nfrom matplotlib.colors import LogNorm\r\nfrom matplotlib.ticker import LogLocator\r\n\r\nv = np.geomspace(1e0, 1e4, num=3 * 4).reshape(3, 4)\r\n\r\nfig, axs = plt.subplots(figsize=(6, 2))\r\npc = axs.pcolormesh(v, norm=LogNorm())\r\nfig.colorbar(pc, extend='both')\r\n\r\nfig, axs = plt.subplots(figsize=(6, 2))\r\npc = axs.pcolormesh(v, norm=LogNorm())\r\nfig.colorbar(pc, extend='both', ticks=LogLocator(numticks=10))\r\n\r\nfig, axs = plt.subplots(figsize=(6, 2))\r\npc = axs.pcolormesh(v, norm=LogNorm())\r\nfig.colorbar(pc, extend='both', ticks=LogLocator(numticks=10, subs='all'))\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![screenshot 2021-02-19 153003](https://user-images.githubusercontent.com/44988698/108472295-86c44480-72c7-11eb-9ea0-531beb09da21.png)\r\n\r\n\r\n**Expected outcome**\r\n\r\nMinor ticks appear only at the body of the colorbar.\r\n\r\nProbably this is not a right usage for the `subs` option, but I just want to show minor ticks, which by default are not shown for a short colorbar.\r\n\r\n\u003c!--A description of the expected outcome from the code snippet--\u003e\r\n\u003c!--If this used to work in an earlier version of Matplotlib, please note the version it used to work on--\u003e\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: \r\n  * Matplotlib version: 3.3.4\r\n  * Matplotlib backend: module://ipykernel.pylab.backend_inline\r\n  * Python version: 3.7.9\r\n  * Jupyter version (if applicable): Jupyterlab 3.0.8\r\n  * Other libraries: \r\n\r\nAll installed by `conda install -c conda-forge ...`\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\n","author":{"url":"https://github.com/yoichi-kazama","@type":"Person","name":"yoichi-kazama"},"datePublished":"2021-02-19T07:49:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/19543/matplotlib/issues/19543"}