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trevorld / ggpattern

ggplot geoms with pattern fills
https://trevorldavis.com/R/ggpattern/dev/
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FR: Add lacking geoms #14

Closed iago-pssjd closed 3 years ago

iago-pssjd commented 4 years ago

I was looking for filling a plot with patterns and I found this great package. Unfortunately, I need fill the patterns on geom_linerange and ggstance::geom_linerangeh not covered by it. But I believe that when this package cover all the geoms, at least from ggplot, it will be very relevant.

Thank you!

coolbutuseless commented 3 years ago

Could you provide an image or example code of what you want to fill with a pattern?

As I understand it, a 'linerange' is a line object, and thus doesn't really have an area to fill.

iago-pssjd commented 3 years ago

Yes, you are right, I was thinking in linerange with enough size so it has width.

df <- data.frame(
    trt = factor(c(1, 1, 2, 2)),
    resp = c(1, 5, 3, 4),
    group = factor(c(1, 2, 1, 2)),
    upper = c(1.1, 5.3, 3.3, 4.2),
    lower = c(0.8, 4.6, 2.4, 3.6)
)

p <- ggplot(df, aes(trt, resp, colour = group))
p + geom_linerange(aes(ymin = lower, ymax = upper), size = 4)

My issue was motivated by the desire of filling the patterns of lines in an image like the one below in order to distinguish both groups in a white and black image (and yes, i know I can do it by means of different levels of gray, which was my final solution).

image

coolbutuseless commented 3 years ago

Ah I see what you want, but this is not possible with ggpattern.

ggpattern will fill areas, but thick lines are not geometrically an area, and there is no current way to fill them.