similar to: R cairo_pdf function does not respect plotting boundaries

Hi (cc'ed to r-devel where further discussion should probably take place) Thanks Lee. I see that problem. There is a "+ 1" in the Cairo device code for setting the clipping region (https://github.com/wch/r-source/blob/ba600867f2a94e46cf9eb75dc8b37f12b08a4561/src/library/grDevices/src/cairo/cairoFns.c#L156) Remove the "+ 1" and the problem goes away (for your example

Hi Paul, Great, thank you for looking in to this, and I'm glad that you're able to reproduce it at your end too. From your reply, I'm happy that it seems like the fix may be fairly trivial, but I understand the necessity for caution. If there's anything else I can do to help, please do let me know. Thank you again, Best, Lee On Monday, 4 March 2019, Paul Murrell <paul at

Hi This appears to be happening (at least) because cairo_pdf() delays initialising a Cairo surface until BM_NewPage(), rather than initiliasing a Cairo surface in BM_Open(), and replayPlot() triggers some activity (set clip region) on the device BEFORE a new page is started (so the pointer to the Cairo surface is null, so BOOM). Not sure yet whether to blame replayPlot() for not starting

I have had some fun in the last few days trying to put together an annotated map of China with R and some public GIS data: http://sourceforge.net/projects/outmodedbonsai/files/snpMatrix%20next/1.17.7.11/China_Choropleth_Maps.pdf/download It is done, and rather nice... there are a few issues: - the default pdf() device cannot do CJK with embedded fonts - and cairo_pdf() is not hooked up to

Hi, I wonder if this is expected or I'm doing a wrong thing. pdf() dev.control('enable') library("grid") plot(1) grid.text("A") res = recordPlot() dev.off() cairo_pdf() replayPlot(res) dev.off() *** caught segfault *** address 0x4, cause 'memory not mapped' > sessionInfo() R version 3.3.2 (2016-10-31) Platform: x86_64-apple-darwin13.4.0 (64-bit)

Dear all, In grDevices R functions cairo_pdf and cairo_ps it is mentioned that when transparency (alpha channels) are used in vector output, it will rasterize the PDF or postscript exported graph at a resolution of 72 dpi : https://stat.ethz.ch/R-manual/R-devel/library/grDevices/html/cairo.html You can see the problem if you try library(ggplot2) cairo_ps(file = "test.eps",onefile =

Hi I decided to blame cairo_pdf(). There is a fix in r-devel (r72242) that works for the reported case, plus some basic sanity checks. I could not complete 'make check-devel' because it was failing on reg-tests-1d.R ... > stopifnot(length(fd) == 10, identical(fd, format(dct <- as.POSIXct(dlt)))) Error: identical(fd, format(dct <- as.POSIXct(dlt))) is not TRUE ... anyone

Hi By the looks of it, you need to install Cairo graphics ... https://www.cairographics.org/download/ Paul On 13/10/17 15:48, John wrote: > Thanks, Paul. Following your solution, ?I got this error message: > > Warning message: > In cairo_pdf("test_plot_chinese.pdf") : failed to load cairo DLL > > Is there anything else I need to install? > > Thanks, >

It was as easy as I thought it was half a day ago - here is a patch against R trunk to add cairo support to the Sweave driver, an example Sweave input, and the resulting output. A few more notes: - obviously the documentation needs to be updated... a bit more work to do. - some check to make sure "cairo" and "pdf" are not both set would be nice, as well as checking

>>>>> Rui Barradas >>>>> on Mon, 16 Jan 2023 08:46:43 +0000 writes: > ?s 08:31 de 16/01/2023, Jeff Newmiller escreveu: >> Use the Cairo PDF device? >> >> On January 16, 2023 12:18:48 AM PST, Dennis Fisher >> <fisher at plessthan.com> wrote: >>> R 4.2.2 OS X >>> >>>

Hi all, I have the following problem: Since R 3.4.0, italic fonts rendered on Cairo devices appear pixelated. Here's a minimal example: cairo_pdf('test.pdf') plot(1:10, ylab=expression(italic(test))) dev.off() The same problem occurs with bolditalic, but not bold. I am using Debian Stretch. Several friends tried the same on their machines, another Debian machine has the same

Hi all, I have the following problem: Since R 3.4.0, italic fonts rendered on Cairo devices appear pixelated. Here's a minimal example: cairo_pdf('test.pdf') plot(1:10, ylab=expression(italic(test))) dev.off() The same problem occurs with bolditalic, but not bold. I am using Debian Stretch. Several friends tried the same on their machines, another Debian machine has the same

Hi Ilia, I'm running Arch Linux, R 3.4.0. Here's my test.pdf from your minimal example: https://ptpb.pw/HxsA.pdf It doesn't look pixelated to me... Here's a post that I wrote when I solved my last font problem in R, almost 2 years ago: https://stackoverflow.com/a/40940331/5087283 I had to install some Microsoft font packages, which is sad, because there are some perfectly

Hi Ilia, I'm running Arch Linux, R 3.4.0. Here's my test.pdf from your minimal example: https://ptpb.pw/HxsA.pdf It doesn't look pixelated to me... Here's a post that I wrote when I solved my last font problem in R, almost 2 years ago: https://stackoverflow.com/a/40940331/5087283 I had to install some Microsoft font packages, which is sad, because there are some perfectly

Hi, Following Paul's instruction, I have installed the Cairo. I tried to run the program, and there is no error message at all. I did see the Chinese title in the plot if I ask my RStudio to show the plot (if I type "p1"), but the pdf file shows the plots without the Chinese titles. library(ggplot2) library(gridExtra) df1<-data.frame(x=1:2, y=3:4, z=5:6) #p1<-ggplot(df1,

I know that this has been asked before in other variations but I just can't seem to figure out my particular application from previous posts. My apologies if I have missed the answer to this question somewhere in the archives. I have indeed looked. I am running Ubuntu 11.04, with R 2.12.1 and ESS+Emacs. For journal formatting requirements, I need to italicize all the greek letters in any

Hi, Sorry to bother you with this question here. I tried to install Macports on my Mac OS Sierra, and type "sudo port install cairo", but it did not respond. I haven't seen any file name or app called Macports, but one file called "port" which is located at loca/bin/port" How should I do it? Thanks, John ******* Last login: Sun Oct 15 02:52:49

The 'at a minimum' information requested by the posting guide is missing. According to their documentation the cairo default fallback resolution is now 300dpi, and when I run your example on Fedora 21 that is what the emitted postscript says it is. You can easily alter the R code to set it to something different: see http://cairographics.org/manual/cairo-cairo-surface-t.html for the

On Mon, 30 Mar 2020 at 22:41, Paul Murrell <paul at stat.auckland.ac.nz> wrote: > > Hi > > On 30/03/20 10:43 pm, I?aki Ucar wrote: > > On Mon, 30 Mar 2020 at 04:24, Paul Murrell <paul at stat.auckland.ac.nz> wrote: > >> > >> Hi > >> > >> I have created an R branch that contains a potential fix ... > >> > >>

Thanks, Paul. Following your solution, I got this error message: Warning message: In cairo_pdf("test_plot_chinese.pdf") : failed to load cairo DLL Is there anything else I need to install? Thanks, John 2017-10-12 19:24 GMT-07:00 Paul Murrell <paul at stat.auckland.ac.nz>: > Hi > > Instead of ... > > ggsave("test_plot_chinese.pdf", m2) > > ...