Can't save a ggplot2-diagram as svg with ggsave.

[christianlindell]

I'm running Windows 11 and R 4.3.3 and RStudio 2023.12.1 with AGG as the default graphic engine. I can save a diagram produced with ggplot2 in svg-format if I use save_plot() from the sjPlot-package. But if I use ggsave() R crash with the message "R session arborted. R encountered a fatal error. The session was terminated". All packages are updated today (2025-01-22) so I'm using marquee v. 1.0.0 and ggplot2 v 3.5.1.

library(marquee)
library(grid)
library(ggplot2)
library(sjPlot)

md_text <-
  "# Lorem Ipsum
Lorem ipsum dolor sit amet, *consectetur* adipiscing elit, sed do eiusmod tempor incididunt ut
labore et dolore magna **aliqua**."

cars <- sub("(\\w+)", "{.red ***\\1***}", rownames(mtcars))

dia <- ggplot(mtcars) + aes(disp, mpg, label = cars) +
  geom_marquee(size = 4) +
  ggtitle(md_text) +
  theme(plot.title = element_marquee(size = 12, width = 1))


save_plot("test.svg", fig = dia, width=20, height=20) # Works
ggsave(dia, filename = "test.svg", width = 20, height = 20) # R crash.

ggsave produce a file that contains the message: " This page contains the following errors:
error on line 397 at column 802: AttValue: ' expected
Below is a rendering of the page up to the first error."

ggsave(dia, filename = "test.png") works without any problems.

[petermott]

I can reproduce this using RStudio 2024.09.0 with Cairo graphics otherwise same as your setup.

[trevorld]

• I observe a segfault when saving an svg image with svglite::svglite() but not when saving with grDevices::svg() e.g. ggsave(dia, filename = "test.svg", device = grDevices::svg) does not seem to segfault for me
• I wildly speculate that this may be related to Provide (possibly stub) R 4.2 device callbacks (so as to stop R freezes/crashes) svglite#185
• This may be a possible duplicate of Support svglite #10