Difference between revisions of "Viewer Layers"
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PDF has a concept of layers that you can enable and disable (at least in a few viewers). This has nothing to do with ConTeXt’s [[Layers]]. | PDF has a concept of layers that you can enable and disable (at least in a few viewers). This has nothing to do with ConTeXt’s [[Layers]]. | ||
− | There’s no other documentation yet, maybe have a look into the | + | There’s no other documentation yet, maybe have a look into the sources {{src|attr-lay.mkiv}}, {{src|attr-lay.lua}} and {{src|lpdf-ren.lua}}. It’s also used in some presentation styles. |
<texcode> | <texcode> | ||
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\input knuth | \input knuth | ||
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+ | \viewerlayer[Plane]{Some more hidden text...} | ||
\stoptext | \stoptext | ||
</texcode> | </texcode> | ||
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+ | You can switch the visibility of layers with the JavaScript functions HideLayer and VideLayer. | ||
+ | |||
+ | Viewer layers are known to work within {{cmd|setlayer}} (see [[Layers]]), e.g. {{src|meta-ini.mkiv}}. |
Revision as of 10:55, 28 July 2018
< Layers | Visuals | Presentations >
PDF has a concept of layers that you can enable and disable (at least in a few viewers). This has nothing to do with ConTeXt’s Layers.
There’s no other documentation yet, maybe have a look into the sources attr-lay.mkiv, attr-lay.lua and lpdf-ren.lua. It’s also used in some presentation styles.
\defineviewerlayer[Plane] \setupviewerlayer[Plane][ state=start, visible=no, % initially title=Test, %tag=, % don’t know? editable=yes, % in Acrobat Pro? printable=yes, export=yes, % exportable in xml? scope=global, % or local ] \starttext \input tufte \startviewerlayer[Plane] {\bfa TOP SECRET} This information is on a different plane of existence. \stopviewerlayer \input knuth \viewerlayer[Plane]{Some more hidden text...} \stoptext
You can switch the visibility of layers with the JavaScript functions HideLayer and VideLayer.
Viewer layers are known to work within \setlayer (see Layers), e.g. meta-ini.mkiv.