Re: Support for Optional Content Groups

[Chris Chapman <chris@pentandra.com>]

Thanks Hans and Wolfgang! Yes, it looks like most PDF viewers don't handle layers right now, but I'm fine with Acrobat for this use case. 

Chris Chapman
Pentandra


----- Original Message -----
> From: "Hans Hagen" <pragma@wxs.nl>
> To: "mailing list for ConTeXt users" <ntg-context@ntg.nl>
> Sent: Thursday, July 3, 2014 11:54:27 AM
> Subject: Re: [NTG-context] Support for Optional Content Groups
> 
> On 7/3/2014 5:55 PM, Chris Chapman wrote:
> > I am new to ConTeXt (coming from LaTeX), and am really impressed. Great
> > work!
> >
> > I am working on a document that has layers that I want to be screen-only,
> > similar in approach to this:
> > http://tex.stackexchange.com/questions/167846/implementing-full-page-screen-only-print-only-in-pdf
> >
> > I am assuming that Optional Content Groups would be the best way to do
> > this. How would I set something up like this in ConTeXt/LuaTeX? I know I
> > could make a screen-only version and a print version of the output pdf,
> > but I want to have my cake and eat it too ;)
> 
> (also see wolfgangs mail)
> 
> I tried this in acrobat:
> 
> \defineviewerlayer[visibleandprint]      [printable=yes,state=start]
> \defineviewerlayer[visibleandnotprint]   [printable=no, state=start]
> \defineviewerlayer[notvisibleandprint]   [printable=yes,state=stop]
> \defineviewerlayer[notvisibleandnotprint][printable=no, state=stop]
> 
> \setupinteraction[state=start]
> 
> \starttext
> 
> \startviewerlayer[visibleandprint]       visible and print
> \stopviewerlayer \blank
> \startviewerlayer[visibleandnotprint]    visible and not print
> \stopviewerlayer \blank
> \startviewerlayer[notvisibleandprint]    not visible and print
> \stopviewerlayer \blank
> \startviewerlayer[notvisibleandnotprint] not visible and not print
> \stopviewerlayer \blank
> 
> \stoptext
> 
> and found out that we need an extra piece of info for acrobat to be
> happy. I'll upload a beta with that addition.
> 
> I wonder if other viewers handle layers well.
> 
> Hans
> 
> 
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