On 4/9/2013 2:04 PM, Thomas A. Schmitz wrote:
> Hi all,
>
> this is a very far shot, but just maybe... I have been looking at prezi
> (http://prezi.com/). There's lots of aspects there that don't appeal to
> me, but I find the general idea very nice: a presentation is sort of a
> big poster, with some background graphics. You define areas on this
> poster into which your content goes (so these would be the "slides" in a
> conventional presentation). When you show your presentation, your viewer
> will zoom in on these areas and present them full screen, and it will
> move along a predefined path, thus showing the areas (slides) in a
> certain order. The nice thing is that you can, at any moment, zoom out
> and show the entire poster, thus giving an overview of your presentation
> in which only the bigger elements (headlines etc.) will be readable. Now
> I was wondering if the same couldn't be done with ConTeXt, pdf and
> javascript: producing a big pdf with a background image would be fairly
> easy (metapost's vector graphics would look good at any zoom level).
> Placing slides with content there could be done via layers. Zooming in
> and showing certain areas is doable (but obviously would depend on the
> pdf viewer, especially for the full screen mode). I have no idea if we
> have support for rotating areas in a pdf viewer. Would javascript be
> capable of automating this, i.e. defining areas in a pdf, displaying
> them at a certain zoom level, and move from one area to the next? I
> think this would be a nice alternative to traditional slide shows.

I did something zooming a decade ago. If I remember right at a Dante 
meeting first. It was the time that I got questions from the audience 
why I was concerned about mathml and math in context as latex and 
backslashes were all one needs.

Page 2 etc: click on small 'rectangles' will zoom in, while clocking at 
the edge will zoom out.

So, I wondered if the tex file still processes in mkiv but given that I 
used some low level mkii hook I had to change a few lines. Anyway, a 
good reason to mkiv the s-pre-17 style (one can just run the file to get 
an example).

In the new beta.

Hans

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