[Rd] Adding text comments to graphics device output files?

Simon Urbanek simon.urbanek at r-project.org
Wed Jul 31 14:42:13 CEST 2013

On Jul 30, 2013, at 11:04 PM, Duncan Temple Lang 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.

I was looking at it and it was the last drop that made me push most of my packages to github so you don't need to fork by hand anymore ;). It's on my ToDo list to add port the changes one way or another - I think it's a good idea - thanks Duncan!


>  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.
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