From hb at biostat.ucsf.edu  Wed Jul 31 06:12:38 2013
From: hb at biostat.ucsf.edu (Henrik Bengtsson)
Date: Tue, 30 Jul 2013 21:12:38 -0700
Subject: [Rd] Adding text comments to graphics device output files?
In-Reply-To: <51F87EBE.3070803@ucdavis.edu>
References: <CAFDcVCTHb65JCh+uREyczADbgRfMNYHNUJx+PuitpPb1ahASPA@mail.gmail.com>
	<51F87EBE.3070803@ucdavis.edu>
Message-ID: <CAFDcVCQ1WeqcX-GShEoZ8-OSwaaRY6EdvxUsH_A=sh7h94z7UA@mail.gmail.com>

Hi Duncan,

this is perfect timing.  Your
https://github.com/duncantl/png/blob/master/testMeta.R example
illustrates what I'm looking for.

Yes, it would be great if this would be incorporated into the 'png' package.

Thanks,

Henrik

On Tue, Jul 30, 2013 at 8:04 PM, Duncan Temple Lang
<dtemplelang at ucdavis.edu> wrote:
>
> Hi Henrik
>
>  I have some extensions of Simon U's png package
> to read and write metadata elements for PNG.
> They are at
>    https://github.com/duncantl/png.git
>
> When I have time to completely test them, maybe Simon
> may incorporate them.
>
>   D.
>
> On 7/30/13 7:59 PM, Henrik Bengtsson wrote:
>> Hi,
>>
>> several image file format supports textual/meta data comments in one
>> way or the other.  For me an obvious usage would be to add
>> sessionInfo() information to PNG and PDF image files, ideally from
>> within R although external tools would work as well(*).  Has anyone
>> looked into this or have any suggestions or comments?
>>
>> /Henrik
>>
>> (*) One could even imagine including self-contained R
>> scripts/vignettes within such comments.
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>
> ______________________________________________
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[Rd] Adding text comments to graphics device output files?
Henrik Bengtsson