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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Relationship between line-art markers and the markeredgewidth parameter","articleBody":"This issue is related to the call for style overhaul proposals.\n\nMy understanding of how line-art markers get drawn (e.g. \"x\") is that the width of the line reads from the `markeredgewidth` parameter.\n\nThis means that when `markeredgewidth` is 0, line art markers are invisible. This is particularly a problem for seaborn (where `markeredgewidth` is 0 by default), but I think one could argue that it is not ideal in any case.\n\nIMO, it would be better to have some differentiation between the width of the edge around a solid marker, which is purely aesthetic, and the weight of the line that is used to draw a line-art marker, which isn't. This distinction already exists a little bit in that line-art markers are colored with the `color` parameter and not the `markeredgecolor` parameter (though specifying the latter does appear to override the former). So I would propose one of two things: 1) adding a `lines.lineartwidth` (or something) parameter to allow separate specification of the line-art marker width, or 2) reading from `lines.linewidth` instead of `lines.markeredgewidth`.\n\nA related (but possibly separate; I can make a new issue) point is that it would be nice to have some \"hollow\" markers, like a hollow \"o\" or \"s\" which are really line-art markers with the same basic shape as a circle or square, but without a fill and where the line color is derived from `color` and not `markeredgecolor`. It's possible to draw one of these currently, but you have to do something like `plt.plot(x, y, \"o\", markeredgewidth=1, markerfacecolor=\"none\", markeredgecolor=\"b\")`. This means it is hard to use this style of marker through an abstract interface (i.e. seaborn), which is a shame because this can be a very useful way to draw scatterplot points.\n","author":{"url":"https://github.com/mwaskom","@type":"Person","name":"mwaskom"},"datePublished":"2015-07-13T16:02:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":4},"url":"https://github.com/4679/matplotlib/issues/4679"}