Strip aesthetics inconsistency with facet_grid using switch="y"

[touala]

I have an issue with strip border aesthetics when using facet_grid(..., switch="y") in both ggplot2 version 2.2.1 and 3.1.0. In the example below, border size is different between x and y strip.

df <- data.frame(x=c(1,1,1,1), y=c(1,1,1,1), grp1=c("A","A","B","B"), grp2=c("C","D","C","D"))
ggplot(df) +
	geom_point(aes(x=x,y=y)) +
	facet_grid(grp1~grp2) +
	theme(strip.background=element_rect(colour="black"))
ggplot(df) +
	geom_point(aes(x=x,y=y)) +
	facet_grid(grp1~grp2, switch="y") +
	theme(strip.background=element_rect(colour="black"))

The other element_rect parameters (fill, linetype, and color) do not display the same behavior and facet_grid(..., switch="x") work as expected.

ggplot(df) +
	geom_point(aes(x=x,y=y)) +
	facet_grid(grp1~grp2, switch="x") +
	theme(strip.background=element_rect(colour="black"))

In 3.1.0, I can correct y strip border size independently using theme(strip.background.y=element_rect(...)) but it's not practical (see below).

ggplot(df) +
	geom_point(aes(x=x,y=y)) +
	facet_grid(grp1~grp2, switch="y") +
	theme(strip.background=element_rect(colour="black")) +
	theme(strip.background.x=element_rect(size=0.5), strip.background.y=element_rect(size=0.25))

Also note that strip border has round outside corner with facet_grid(..., switch="y"), which is not consistent with other configurations.

Let me know if you have questions.

[karawoo]

Adding a reprex to show the plots:

library("ggplot2")

df <- data.frame(x=c(1,1,1,1), y=c(1,1,1,1), grp1=c("A","A","B","B"), grp2=c("C","D","C","D"))
ggplot(df) +
  geom_point(aes(x=x,y=y)) +
  facet_grid(grp1~grp2) +
  theme(strip.background=element_rect(colour="black"))

ggplot(df) +
  geom_point(aes(x=x,y=y)) +
  facet_grid(grp1~grp2, switch="y") +
  theme(strip.background=element_rect(colour="black"))

^{Created on 2019-01-09 by the reprex package (v0.2.1)}

The last time I saw something like this it was due to clipping being turned off, and was fixed in this commit. I'll try to look into that when I get a chance, maybe the fix isn't getting carried through when the strip position is switched.

[touala]

Ok, I did not realize I could directly embed plots with reprex. I will do it next time.

Good luck fixing that.

[clauswilke]

Related? #2772

I agree this looks like a clipping issue. I had a look at the code when #2772 was filed and couldn‘t immediately figure out where clipping goes wrong. It‘s not obvious.

[karawoo]

Closed in #3068

[lock]

This old issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with reprex) and link to this issue. https://reprex.tidyverse.org/