Linetype for points in ggplot2

Question

I'm trying to get a hollow point to have the same line type as an associated line range. For instance

library(tidyverse)

data.frame(
    x = letters[1:2] %>% 
      factor,
    ymin = 4:5,
    y = 5:6,
    ymax = 6:7
  ) %>% 
  ggplot() +
  geom_linerange(
    aes(x, ymin = ymin, ymax = ymax),
    linetype = "dashed"
  ) +
  geom_point(
    aes(x = x, y = y),
    shape = 21,
    size = 10,
    fill = "grey95",
    linetype = "dashed"
    ) +
  theme_void()

returns this

How so I get the points' borders to also be dashed?

I believe shapes of central pieces in geom_linerange is limited to these shapes: github.com/tidyverse/ggplot2/blob/master/R/geom-point.r#L140 — Roman Luštrik
– Roman Luštrik, Commented Oct 22, 2018 at 19:35
The function I link to is used by geom_point as well. You may have to implement some sort of graphics to achieve a dashed circle. Something along the lines of stackoverflow.com/questions/27637455/… — Roman Luštrik
– Roman Luštrik, Commented Oct 22, 2018 at 19:48
Maybe use 'dotted circle' unicode symbol ("\u25CC") as shape, or draw circles with desired linetype — Henrik
– Henrik, Commented Oct 22, 2018 at 19:52

tomw · Accepted Answer · 2018-10-22 20:06:14Z

1

with thanks to @Henrik, ggforce::geom_circle() has the necessary functionality

answered Oct 22, 2018 at 20:06

tomw

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