showtext appears to be double spacing labels/titles

[PDjupe]

Love the ease of this package. But when I use the "\n" function to separate labels to a second line I am getting double spacing which I can't correct outside of photoshop. Here's an example with labels and titles showing the double spacing.

fpol %>% filter(pid7!="NA") %>% ggplot(., aes(x=q18_1, y=factor(pid7), fill=..x..)) +
geom_density_ridges_gradient(rel_min_height=.02) +
scale_fill_gradient2(low="dodgerblue3", high="firebrick3", mid="white", midpoint=50) +
theme_minimal() +
labs(x="", y="", title="Only Strong Republicans Are Happy\nwith Trump Admin's Management", caption="Source: February 2018") +
theme(legend.position = "none") +
scale_x_continuous(breaks=c(0,25,50,75,100), labels=c("Extremely\nUnhappy","25","Neither\nHappy\nNor\nUnhappy", "75", "Extremely\nHappy")) +
theme(text=element_text(family="JSans", size=20))

[larmarange]

Same issue observed

[yixuan]

I'll take a look some time later this week.

[yixuan]

I was trying to investigate this issue today, but I couldn't reproduce it. The spacing seems correct for the minimal example below. Can someone give me a (runnable) example that has double spacing?

library(showtext)
library(ggplot2)

showtext_auto()

dat = data.frame(x = c("AAA\nAAA", "BBB\nBBB", "CCC\nCCC"), y = 1:3)
x11()
ggplot(dat, aes(x = x, y = y)) +
    geom_bar(stat = "identity") +
    ggtitle("First Line\nsecond line") +
    theme_grey(base_family = "sans")

[PDjupe]

Hi- Thanks for taking a look. It shows up correctly (no extra spacing) in the preview window, but once I ggsave it, the spacing appears. I added a googlefont to your code. library(showtext) library(ggplot2) font_add_google("Merriweather", "Merri", regular.wt = 400) showtext_auto() dat = data.frame(x = c("AAA\nAAA", "BBB\nBBB", "CCC\nCCC"), y = 1:3) x11() ggplot(dat, aes(x = x, y = y)) + geom_bar(stat = "identity") + ggtitle("First Line\nsecond line") + theme_grey(base_family = "Merri") ggsave(file="shotwtext_example.png", type="cairo-png", width=5, height=5)

…

On Fri, Dec 14, 2018 at 11:42 AM Yixuan Qiu ***@***.***> wrote: I was trying to investigate this issue today, but I couldn't reproduce it. The spacing seems correct for the minimal example below. Can someone give me a (runnable) example that has double spacing? library(showtext) library(ggplot2) showtext_auto() dat = data.frame(x = c("AAA\nAAA", "BBB\nBBB", "CCC\nCCC"), y = 1:3) x11() ggplot(dat, aes(x = x, y = y)) + geom_bar(stat = "identity") + ggtitle("First Line\nsecond line") + theme_grey(base_family = "sans") [image: image] <https://user-images.githubusercontent.com/216398/50015519-cdee7680-ff94-11e8-8b9b-fc31ac2e0ab2.png> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#26 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AmJj0ycnXJjHwUlPjSoioV4pcrzEy1fwks5u49TcgaJpZM4X1rqq> .

[larmarange]

The issue is also observed when using showtext within a Rmarkdown document.

[yixuan]

OK, now I know the problem. The fact is not that the spacing is doubled, but that the font sizes are made smaller. ggsave() has a default dpi = 300 argument, while showtext_opts() has dpi = 96. Simply add the following line will fix the issue.

showtext_opts(dpi = 300)

The same reason applies to Rmarkdown. You need to make sure the dpi knitr option is consistent with the one in showtext.

[larmarange]

Would it be possible to find a way in Rmarkdown for showtext to detect automatically the dpi used by knitr?

[yixuan]

@larmarange I find that adding the following option to the document header automatically solves the problem. Can you confirm this?

---
output:
    html_document:
        fig_retina: 1
---