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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Feature request: offset radial origin for polar plots","articleBody":"I'd be really interested in having a nice way to produce polar plots where the origin of the radial axis is offset from the centre, something like this:\n\n![origin example](http://cloud.originlab.com/www/resources/graph_gallery/images_galleries_new/Polar_custom_radial_axis.png)\n\nHaving the radial offset is particularly useful for plotting polar histograms, which tend to suffer from the problem that long bars are over-emphasised relative to short bars because their areas being much larger due to the distorting effect of the polar transformation. Adding a radial offset helps to reduce the visual impact of this distortion.\n\nThere are of course hacky ways to achieve this sort of effect, e.g. offsetting the r coordinates of the data, then manually setting the radial ticks. I also came across [this SO question](http://stackoverflow.com/q/16605137/1461210). The accepted answer, using `floating_axes.GridHelperCurveLinear`, is close to what I'm looking for:\n\n![so_example](http://i.stack.imgur.com/PPq8A.png)\n\nHowever, it's still a bit of a nasty hack, since it requires the radial ticks to be set manually.\n\nHow much work would it be to add a `set_r_offset()` method to allow one to control the relative radial position of the r-axis origin? I imagine it accepting a float between 0 and 1, where 0 would place the r origin exactly at the centre, and 1 would place it exactly at the edge of the plot.\n","author":{"url":"https://github.com/alimuldal","@type":"Person","name":"alimuldal"},"datePublished":"2015-03-13T13:04:08.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/4217/matplotlib/issues/4217"}