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geom_path linejoin=mitre does not actually produce mitre #774

sebastian-c opened this issue Mar 5, 2013 · 1 comment

geom_path linejoin=mitre does not actually produce mitre #774

sebastian-c opened this issue Mar 5, 2013 · 1 comment


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@sebastian-c sebastian-c commented Mar 5, 2013

When producing a simple geom_path in ggplot2 as suggested by the documentation:

df <- data.frame(x = 1:3, y = c(4, 1, 9))
base <- ggplot(df, aes(x, y))
base + geom_path(size = 10, linejoin = "mitre")

This actually produces a bevel, not a mitre (the definitions can be found at this tutorial). I thought this might just be a bug in the documentation, but it seems that linejoin='bevel' and linejoin='mitre' do exactly the same thing.

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@hadley hadley commented Feb 24, 2014

This sounds like a great feature, but unfortunately we don't currently have the development bandwidth to support it. If you'd like to submit a pull request that implements this feature, please follow the instructions in the development vignette.

@hadley hadley closed this Feb 24, 2014
Ax3man added a commit to Ax3man/ggplot2 that referenced this issue May 15, 2017
karawoo added a commit that referenced this issue Jul 3, 2017
* Added linejoin parameter to geom_segment (#774).

* Simplify example code.

* Changed indentation and moved data and aes to ggplot
@lock lock bot locked as resolved and limited conversation to collaborators Jun 20, 2018
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