René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[ENH]: support rect with constrained_layout (\"layout only to part of the figure\")","articleBody":"### Problem\n\ntight_layout supports a rect option (\"layout axes so that they fit within this rect instead of filling the entire figure\").  It could be nice if constrained_layout also supported that.\r\n\r\nAs an example use case, requested by @jklymak on gitter:\r\n```python\r\nfrom pylab import *\r\n\r\nfig = figure(layout=\"constrained\")\r\naxs = fig.subplots(1, 3)\r\nfor ax in axs:\r\n    for i in range(3):\r\n        ax.plot(rand(3), rand(3), label=f\"dataset {i}\")\r\naxs[1].legend(ncol=3, loc=\"lower center\", bbox_to_anchor=(0.5, 1.0))\r\n\r\nfig = figure(layout=\"constrained\")\r\naxs = fig.subplots(1, 3)\r\nfor ax in axs:\r\n    for i in range(3):\r\n        ax.plot(rand(3), rand(3), label=f\"dataset {i}\")\r\nfig.legend(handles=axs[0].lines, ncol=3, loc=\"upper center\")\r\n\r\nshow()\r\n```\r\nThis draws e.g. three different coordinates of three datasets, and tries to have a single one-line legend at the center top.\r\n\r\nThe first try gives\r\n![1](https://user-images.githubusercontent.com/1322974/157240217-d0b6107f-f4c0-4a8c-a63e-da26454adbc5.png)\r\ni.e. it would work if set_in_layout could be used to take the legend's y extent, but not its x extent (now that I think of it, that may be the better solution).\r\nThe second try gives\r\n![2](https://user-images.githubusercontent.com/1322974/157240367-48ecbf43-cad2-48c1-b31d-a2a127563dd2.png)\r\nwhich is where I think a rect option would work to avoid the axes overlapping the legend (you'd have to tweak the value a bit manually, though, to specify the upper bound of the rect).  (Perhaps not the nicest solution, but \"could work when you just want to get a plot done\".)\r\n\r\n\n\n### Proposed solution\n\n_No response_","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2022-03-08T12:44:51.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/22623/matplotlib/issues/22623"}