René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"ENH: make default colorbar ticks adjust as nicely as axes ticks","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\n**Bug summary**\r\n\r\nIt would be nice if the colorbars changed their number of ticks if the colorbar gets small.  \r\n\r\n**Code for reproduction**\r\n\r\n\u003c!--A minimum code snippet required to reproduce the bug, also minimizing the number of dependencies required--\u003e\r\n\r\n```python\r\nimport matplotlib\r\nimport matplotlib.pyplot as plt\r\nimport numpy as np\r\n\r\nX = np.random.rand(32,32)*20.\r\n\r\nfig, ax = plt.subplots()\r\npc = ax.pcolormesh(X)\r\nfig.colorbar(pc)\r\n\r\nplt.show()\r\n\r\nfig, ax = plt.subplots(figsize=(4, 1.))\r\npc = ax.pcolormesh(X)\r\nfig.colorbar(pc)\r\n\r\nplt.show()\r\n\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**Expected outcome**\r\n\r\nThe full sized plot has 7 y-ticks and 7 colorbar ticks.  Whichs is fine.\r\n\r\n\u003cimg width=\"548\" alt=\"figure_1\" src=\"https://user-images.githubusercontent.com/1562854/30940882-a3277b0e-a397-11e7-861e-f92d36f1e712.png\"\u003e\r\n\r\nIf I make the plot much smaller (as can happen if I have a bunch of subplots), then the y-axis decreases its number of ticks, but the colorbar doesn't.  \r\n\r\n\u003cimg width=\"366\" alt=\"figure_1\" src=\"https://user-images.githubusercontent.com/1562854/30940890-aecc359e-a397-11e7-82eb-5ed0b3d98ea1.png\"\u003e\r\n\r\nNo idea how easy this is, and I don't think its a must-do (we can use a manual locator), but it does seem the default should be that the colorbar gets treated as well as the y-axis.\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* Master\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","author":{"url":"https://github.com/jklymak","@type":"Person","name":"jklymak"},"datePublished":"2017-09-27T22:27:27.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/9246/matplotlib/issues/9246"}