Using Unicode Character “🠝” (U+1F81D) in the ggplot xaxis title

[zhengchencai]

Description

Hello,

I am trying to use Unicode Character “🠝” (U+1F81D) in one of the figure's x axis title. When I run the R chunk in qmd, it returns me the correct character. The ggplot just uses lab(x = "Pr(outcome) 🠝").

However, when I render the whole HTML, the 🠝 is not recognized. Is there something I should set in YAML?

I also tried the HTML entity shown here https://www.compart.com/en/unicode/U+1F81D, but it is still not rendering correctly.

Thank you very much.

[mcanouil]

You need to use a graphic device and have the font that can use that unicode.
That's not really related to Quarto.

For instance, I can't even see that unicode on MacOS but I can see it on Windows.

---
title: "Quarto Playground"
format: html
knitr:
  opts_chunk: 
    dev: ragg_png
---

This is a playground for Quarto.

```{r}
library(ggplot2)

ggplot() + geom_blank() + labs(title = "Hello, Quarto \u03a9")
```

[zhengchencai]

Hi @mcanouil , thanks for your suggestion. I do use ragg to save figures after ggplot. \u03a9 works but “🠝” (U+1F81D) does not. Probably I am not use the right code. I will double-check. Thanks again.

[mcanouil]

It's a matter of font being used.
You need to use a font that has those unicode you want.

Unfortunately, this is unrelated to Quarto, thus out of Quarto support scope.

[zhengchencai]

No worries, thanks a lot. You have already explained to me the causal and I can search to fix it. Thanks again.

[zhengchencai]

Hi @mcanouil, I tied this and it works now. "Pr(outcome) \U0001F81D".