Re: [R] single character in R, and how to manipulate it
Hi
From R 4.2.0, mirroring is possible (if a little awkward) ...
library(grid)
grid.newpage()
grid.define(textGrob("R"), name="r")
grid.use("r",
transform=function(group, device)
viewportTransform(group, flip=groupFlip(flipX=TRUE)))
... although only on pdf() and Cairo-based devices.
Paul
On 31/03/23 13:14, Jim Lemon wrote:
Also see the "arctext" function in the plotrix package.
Jim
On Fri, Mar 31, 2023 at 11:12 AM Jim Lemon 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 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 "Я".
> >
> >
> > Any hint? Thanks in advance.
> >
> >
> > Best,
> > Jinsong
> > [[alternative HTML version deleted]]
> >
> > __
> > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
__
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--
Dr Paul Murrell
Te Kura Tatauranga | Department of Statistics
Waipapa Taumata Rau | The University of Auckland
Private Bag 92019, Auckland 1142, New Zealand
64 9 3737599 x85392
p...@stat.auckland.ac.nz
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] single character in R, and how to manipulate it
Also see the "arctext" function in the plotrix package. Jim On Fri, Mar 31, 2023 at 11:12 AM Jim Lemon 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 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 "Я". > > > > > > Any hint? Thanks in advance. > > > > > > Best, > > Jinsong > > [[alternative HTML version deleted]] > > > > __ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] single character in R, and how to manipulate it
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 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 "Я". > > > Any hint? Thanks in advance. > > > Best, > Jinsong > [[alternative HTML version deleted]] > > __ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] single character in R, and how to manipulate it
Às 09:25 de 30/03/2023, Jinsong Zhao escreveu: 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 "Я". Any hint? Thanks in advance. Best, Jinsong [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. Hello, You are right, according to this not very old R-Help thread [1] there are no user-level functions that use crt. Characters are treated as character *strings* and rotated with srt. txt <- "Rui Barradas" plot(1, type = "n") text(1, 1, txt, srt = 180) As for how to mirror characters, I don't know the answer. [1] https://stat.ethz.ch/pipermail/r-help/2017-May/446635.html Hope this helps, Rui Barradas __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] single character in R, and how to manipulate it
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 "Я". Any hint? Thanks in advance. Best, Jinsong [[alternative HTML version deleted]] __ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
