René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Line2D dash pattern getter","articleBody":"### Bug report\r\n\r\n**Bug summary**\r\n\r\nFor ``lines.Line2D``, there exists ``line.get_linestyle()`` which returns a short string representation of one of the four preconfigured line styles (``\"-\"/\"--\"/\":\"/\"-.\"``). For the \"dashed\" (\"--\") style, which is returned wherever the linestyle input is a tuple (or ``dashes`` kwarg was used or ``set_dashes`` was called with tuple input), the exact dash pattern is not returned. There's no ``line.get_dashes()``.\r\n\r\nOn the contrary, ``collections.LineCollection([], linestyle=style).get_linestyle()`` returns the (scaled) dash pattern and not the preconfigured linestyle, which is more general and helpful. ``collection.get_dashes()`` is an alias for ``get_linestyle()``.\r\n\r\nIs it possible to add a getter for the (unscaled) original dash pattern of a line2d instance? \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#linestyle input to line2d can be queried but dash pattern is not exposed\r\nfrom matplotlib import lines\r\nline = lines.Line2D([],[],linestyle=(0,(2,2)))\r\nline.get_linestyle()  # \"--\"\r\n#similar dashing input to lineCollection\r\nfrom matplotlib import collections\r\ncollection = collections.LineCollection([], linestyle=(0,(2,2)))\r\ncollection.get_linestyle()  # [(0.0, [3.0, 3.0])]\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```\r\n'--'\r\n[(0.0, [3.0, 3.0])]\r\n```\r\n\r\n**Expected outcome**\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  * Matplotlib version: 3.2.1\r\n\r\n\r\nMany thanks for considering this!\r\n","author":{"url":"https://github.com/MaozGelbart","@type":"Person","name":"MaozGelbart"},"datePublished":"2020-05-03T19:41:31.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/17316/matplotlib/issues/17316"}