Also see the "arctext" function in the plotrix package.
Jim
On Fri, Mar 31, 2023 at 11:12?AM Jim Lemon <drjimlemon at gmail.com>
wrote:>
> Hi Jinsong,
> Maybe "srt" will do what you want. As you noted non-orthogonal
> rotations may not work on some devices. You may be able to download
> mirror fonts from places like fontmirror.com, but it more complicated.
>
> Jim
>
> On Thu, Mar 30, 2023 at 7:25?PM Jinsong Zhao <jszhao at yeah.net>
wrote:
> >
> > Hi there,
> >
> >
> > I just noticed that "crt" is a graphical parameter, which is
stated as follows in the help page of "par":
> > A numerical value specifying (in degrees) how single characters should
be rotated. It is unwise to expect values other than multiples of 90 to work...
> >
> >
> > However, I did not find any code example to demo the usage of
"crt", and even know how to present a *single character* in R. It
seems that R treats "A" as a string. If I wanted to rotated it in a
plot, I could use "text" function with "srt" argument. But
how to use "crt"?
> >
> >
> > Another related question, how to mirror a character in R plot? For
example, the mirror of "R" is something like "?".
> >
> >
> > Any hint? Thanks in advance.
> >
> >
> > Best,
> > Jinsong
> > [[alternative HTML version deleted]]
> >
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