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...nsole fails to boot. John does it work for you? Not sure whether Python has the same trouble. Kind of old info at https://www.python.org/download/mac/tcltk/ ?-----Original Message----- From: "Fox, John" <jfox at mcmaster.ca> Date: Thursday, June 11, 2020 at 7:54 PM To: Wayne Oldford <rwoldford at uwaterloo.ca> Cc: Peter Dalgaard <pdalgd at gmail.com>, "r-devel at r-project.org" <r-devel at r-project.org> Subject: Re: [Rd] tcltk image reading problem (on a mac?): [tcl] encountered an unsupported criticial chunk type "eXIf" Dear Wayne...

...eems to work on windows). But it seems that tkimage.create() no longer works on a Mac for all png files. (It does work for *some* old png files I have on disk but I have not been able to determine what is different about the ones that work) Any help would be appreciated. - Wayne R.W. Oldford math.uwaterloo.ca/~rwoldfor > library(tcltk) > fname <- "Rplot.png" > png(filename = fname, width = 500, height = 500) > hist(rnorm(20)) > dev.off() > tkimage.create("photo", file = fname) Error in structure(.External(.C_dotTclObjv, objv), class = &qu...

...ked-around for R, but not for wish. Back to the original question - do you have any example of a file that doesn't work so I could test? Exif chunks are fairly rare in PNG and are a more late extension so I couldn't find any examples. Thanks, Simon > On 12/06/2020, at 12:24 PM, Wayne Oldford <rwoldford at uwaterloo.ca> wrote: > > I don't know what has changed with Catalina > > But I just tried my tk console from the shell command tkcon > And got the following error. > Here is my shell: > > $ tkcon > > dyld: Library not loaded: /usr/local/...

...-------- This is from RStudio but I see the same thing in the R.app. I hope this is of some help, John ----------------------------- John Fox, Professor Emeritus McMaster University Hamilton, Ontario, Canada Web: http::/socserv.mcmaster.ca/jfox > On Jun 11, 2020, at 6:43 PM, Wayne Oldford <rwoldford at uwaterloo.ca> wrote: > > Yes. > I seem to be picking up > <Tcl> 8.6 > I should have noted that. > > Use to work for me too in Mojave. > I have the sneaky feeling that Catalina is the problem. > > R. W. Oldford > > https://math.uwate...

...ated the offending file: library(tcltk) fname <- "Rplot.png" png(filename = fname, width = 500, height = 500) hist(rnorm(20)) dev.off() tkimage.create("photo", file = fname) Best, John > > Thanks, > Simon > > >> On 12/06/2020, at 12:24 PM, Wayne Oldford <rwoldford at uwaterloo.ca> wrote: >> >> I don't know what has changed with Catalina >> >> But I just tried my tk console from the shell command tkcon >> And got the following error. >> Here is my shell: >> >> $ tkcon >> >&gt...

...o R being killed"? You should tell to the killer not to do it again :). Hi Simon! Sure, but who do you tell it if you don't know the killer? This is all the killer left me with, the 'crime scene' if you like :-) > m <- matrix(0, 90000, 100000) Killed: 9 My colleague Wayne Oldford also tried it on his Mac machine and apparently the killer went further down the hallway to his office now... so scary. Here is Wayne's sessionInfo(): > sessionInfo() R version 3.2.4 (2016-03-10) Platform: x86_64-apple-darwin13.4.0 (64-bit) Running under: OS X 10.10.5 (Yosemite) locale: [1...

Happy enough for me on Mojave. On the off chance that you are picking up an old Tcl, do you see this? > tcl("info","tclversion") <Tcl> 8.6 -pd > On 11 Jun 2020, at 23:04 , Wayne Oldford <rwoldford at uwaterloo.ca> wrote: > > Hello everyone > > I am not sure when this appeared > (sometime post R 3.5.0 and after I switched to Mac OS Catalina). > > I do not think it happens on all platforms (e.g. seems to work on windows). > > But it seems that &g...

...>> Hi Simon! >> >> Sure, but who do you tell it if you don't know the killer? >> This is all the killer left me with, the 'crime scene' if you like :-) >> >>> m <- matrix(0, 90000, 100000) >> Killed: 9 >> >> My colleague Wayne Oldford also tried it on his Mac machine and >> apparently the killer went further down the hallway to his office >> now... so scary. Here is Wayne's sessionInfo(): >> > > Yes, indeed, scary - since it means someone is killing R which means there is not much R itself can do abou...

...who do you tell it if you don't know the killer? >>>> This is all the killer left me with, the 'crime scene' if you like :-) >>>> >>>>> m <- matrix(0, 90000, 100000) >>>> Killed: 9 >>>> >>>> My colleague Wayne Oldford also tried it on his Mac machine and >>>> apparently the killer went further down the hallway to his office >>>> now... so scary. Here is Wayne's sessionInfo(): >>>> >>> >>> Yes, indeed, scary - since it means someone is killing R which mean...

...gt;>> Sure, but who do you tell it if you don't know the killer? >>> This is all the killer left me with, the 'crime scene' if you like :-) >>> >>>> m <- matrix(0, 90000, 100000) >>> Killed: 9 >>> >>> My colleague Wayne Oldford also tried it on his Mac machine and >>> apparently the killer went further down the hallway to his office >>> now... so scary. Here is Wayne's sessionInfo(): >>> >> >> Yes, indeed, scary - since it means someone is killing R which means there is not muc...

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