Re: image that resizes automatically to screen size in epub

["cjns...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <cjns1989-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Wed, Oct 28, 2020 at 08:21:47PM EDT, John MacFarlane wrote:
> John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> writes:
> 
> > "cjns...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org" <cjns1989-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> You can work around this, actually!
> 
> % pandoc -f html -t markdown
> <svg xmlns="http://www.w3.org/2000/svg" 
> xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" width="100%" 
> height="100%" viewBox="0 0 900 1200" preserveAspectRatio="none">
> <image width="900" height="1200" xlink:href="../media/pl001.jpg" />
> </svg>
> ^D
> ![](data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB2ZXJzaW9uPSIxLjEiIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiIHZpZXdib3g9IjAgMCA5MDAgMTIwMCIgcHJlc2VydmVhc3BlY3RyYXRpbz0ibm9uZSI+CjxpbWFnZSB3aWR0aD0iOTAwIiBoZWlnaHQ9IjEyMDAiIGhyZWY9Ii4uL21lZGlhL3BsMDAxLmpwZyI+PC9pbWFnZT4KPC9zdmc+)
> 
> Just include that Markdown image tag in your document instead of
> the HTML svg element, and everything should work properly (with
> the pandoc nightly).

Clever bit of thinking outside the box that sounded promising. 

I eventually got the html → markdown conversion to create the
base64-encoded HTML ... but when I run pandoc on the file where
I copy-pated '![](data: image... base64)' etc. etc. it creates an OK
epub as per epubcheck but when I look inside it contains
a ../media/file01.svg (correctly referenced by content.opf) instead of
the  expected a ../media/file01.jpg. And as to ../media/file01.svg it
contains the <svg> ... <image href= ... pl001.jpg \></svg> HTML.

Not sure if I misread your post and maybe I am not doing it right but as
far as I can tell this not doing what was intended.

Am I missing something?

Thanks,

CJ

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