Garbled text when using MS Gothic font

[mistval]

Hello,

I am seeing an issue when I try to use MS Gothic (installed by default in Windows 10). I have the following code:

library(showtext)
font_add("yxfont", "msgothic.ttc") # Using MS Gothic creates garbled labels on the plot
# font_add("yxfont", "arial.ttf") # Uncomment this to use Arial, and it works fine.
showtext_auto()

png(filename = 'testoutput.png', type = 'cairo', family = 'yxfont')
par(family="yxfont")

plot(1:10, 1:10, main = "ABC",)
points(c(6,2), c(2,1), pch = 3, cex = 4, col = "red")

The output PNG looks like this:

I haven't seen this problem using other fonts.

Is this a bug?

Thank you for your work on this library.

[yixuan]

I can reproduce this issue and it seems to be a bug. In fact the pdf() device works fine but png() fails.

[mistval]

Thanks for checking. It looks like the jpeg() device also has the problem, but like you said pdf() seems okay. Do you have any ideas about workarounds? Using pdf() or a different font are the only workarounds I have found so far.

[yixuan]

Sorry for the late action. I finally located the cause of this bug. It was a very tricky issue of the FreeType library dealing with the MS Gothic font. I will submit the new version to CRAN soon, and it would be nice if you can test the master branch to see if it works for you.

[mistval]

That's great news. I installed from the master branch and I can confirm that the issue is fixed in my test case. Thanks!