Dear Simon,
> On Jun 11, 2020, at 9:00 PM, Simon Urbanek <simon.urba...@r-project.org>
> wrote:
>
> Wayne,
>
> that one is unrelated, but interesting - you can fix it with
>
> sudo install_name_tool -change \
> /usr/local/lib:/opt/X11/lib/libtk8.6.dylib \
> /usr/local/lib/libtk8.6.dylib \
> /usr/local/bin/wish8.6
>
> There is a bug in tcltk with IDs on the libraries which I have worked-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.
The code in Wayne's original message (copied below) generated 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 <rwoldf...@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/lib:/opt/X11/lib/libtk8.6.dylib
>> Referenced from: /usr/local/bin/wish
>> Reason: image not found
>> Abort trap: 6
>>
>>
>> I don't know whether this is a red herring or not, but the
>> Console 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" <j...@mcmaster.ca>
>> Date: Thursday, June 11, 2020 at 7:54 PM
>> To: Wayne Oldford <rwoldf...@uwaterloo.ca>
>> Cc: Peter Dalgaard <pda...@gmail.com>, "r-devel@r-project.org"
>> <r-devel@r-project.org>
>> Subject: Re: [Rd] tcltk image reading problem (on a mac?): [tcl]
>> encountered an unsupported criticial chunk type "eXIf"
>>
>> Dear Wayne and Peter,
>>
>> FWIW, I observe exactly the same problem in Catalina. The error and my
>> session info:
>>
>> -------- snip --------
>>
>>> tkimage.create("photo", file = fname)
>> Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") :
>> [tcl] encountered an unsupported criticial chunk type "eXIf".
>>
>>> sessionInfo()
>> R version 4.0.0 (2020-04-24)
>> Platform: x86_64-apple-darwin17.0 (64-bit)
>> Running under: macOS Catalina 10.15.5
>>
>> Matrix products: default
>> BLAS:
>> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
>> LAPACK:
>> /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib
>>
>> locale:
>> [1] en_CA.UTF-8/en_CA.UTF-8/en_CA.UTF-8/C/en_CA.UTF-8/en_CA.UTF-8
>>
>> attached base packages:
>> [1] tcltk stats graphics grDevices utils datasets methods
>> base
>>
>> loaded via a namespace (and not attached):
>> [1] compiler_4.0.0 tools_4.0.0
>>
>> -------- snip --------
>>
>> 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 <rwoldf...@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.uwaterloo.ca/~rwoldfor
>>>
>>> ________________________________
>>> From: Peter Dalgaard <pda...@gmail.com>
>>> Sent: Thursday, June 11, 2020 5:56:15 PM
>>> To: Wayne Oldford <rwoldf...@uwaterloo.ca>
>>> Cc: r-devel@r-project.org <r-devel@r-project.org>
>>> Subject: Re: [Rd] tcltk image reading problem (on a mac?): [tcl]
>>> encountered an unsupported criticial chunk type "eXIf"
>>>
>>> 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 <rwoldf...@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
>>>>
>>>> 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 = "tclObj") :
>>>> [tcl] encountered an unsupported criticial chunk type "eXIf".
>>>>
>>>>
>>>> ______________________________
>>>>
>>>>> R.version
>>>> _
>>>> platform x86_64-apple-darwin17.0
>>>> arch x86_64
>>>> os darwin17.0
>>>> system x86_64, darwin17.0
>>>> status
>>>> major 4
>>>> minor 0.0
>>>> year 2020
>>>> month 04
>>>> day 24
>>>> svn rev 78286
>>>> language R
>>>> version.string R version 4.0.0 (2020-04-24)
>>>> nickname Arbor Day
>>>>
>>>> ___________________________
>>>>
>>>> macOS Catalina V 10.15.5
>>>>
>>>> ___________________________________________________
>>>>
>>>>
>>>> [[alternative HTML version deleted]]
>>>>
>>>> ______________________________________________
>>>> R-devel@r-project.org mailing list
>>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>>
>>> --
>>> Peter Dalgaard, Professor,
>>> Center for Statistics, Copenhagen Business School
>>> Solbjerg Plads 3, 2000 Frederiksberg, Denmark
>>> Phone: (+45)38153501
>>> Office: A 4.23
>>> Email: pd....@cbs.dk Priv: pda...@gmail.com
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> [[alternative HTML version deleted]]
>>>
>>> ______________________________________________
>>> R-devel@r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>>
>>
>>
>>
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>
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