add layer to page

add layer to page

[Thomas A. Schmitz]

Hi all,

I have a vague memory that there was a message (by Wolfgang Schuster?)  
about this a couple of months ago, but I'm unable to find anything in  
the archives. What I want: add a layer on top of the current page.  
This page is created with the simpleslides-module, so it already  
contains several layers. I want something on top of all that, and I  
seem to remember that there was some option to say "typeset the  
current layers + this additional one." Can somebody help my memory?

All best

Thomas
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Re: add layer to page

[Hans Hagen]

Thomas A. Schmitz wrote:
> Hi all,
> 
> I have a vague memory that there was a message (by Wolfgang Schuster?) 
> about this a couple of months ago, but I'm unable to find anything in 
> the archives. What I want: add a layer on top of the current page. This 
> page is created with the simpleslides-module, so it already contains 
> several layers. I want something on top of all that, and I seem to 
> remember that there was some option to say "typeset the current layers + 
> this additional one." Can somebody help my memory?

\defineoverlay[x][a]
\defineoverlay[x][b]

\setupbackgrounds ... [background={a,foreground,b}

etc .. in your module you can just add a few more in the chain (unknown 
ones are ignored)


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Re: add layer to page

[luigi scarso]

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On Sun, Jun 28, 2009 at 12:30 PM, Hans Hagen <pragma@wxs.nl> wrote:

> Thomas A. Schmitz wrote:
>
>> Hi all,
>>
>> I have a vague memory that there was a message (by Wolfgang Schuster?)
>> about this a couple of months ago, but I'm unable to find anything in the
>> archives. What I want: add a layer on top of the current page. This page is
>> created with the simpleslides-module, so it already contains several layers.
>> I want something on top of all that, and I seem to remember that there was
>> some option to say "typeset the current layers + this additional one." Can
>> somebody help my memory?
>>
>
> \defineoverlay[x][a]
> \defineoverlay[x][b]
>
> \setupbackgrounds ... [background={a,foreground,b}
>
b is on the top of foreground
foreground is on the top of a
a is the base layer

-- 
luigi

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Re: add layer to page

[Wolfgang Schuster]

Am 28.06.2009 um 12:33 schrieb luigi scarso:

>> \setupbackgrounds ... [background={a,foreground,b}
>>
> b is on the top of foreground
> foreground is on the top of a
> a is the base layer

foreground is text (base layer)
b is on top of the text
a is behind the text

Wolfgang

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Re: add layer to page

[Thomas A. Schmitz]

On Jun 28, 2009, at 12:30 PM, Hans Hagen wrote:

> \defineoverlay[x][a]
> \defineoverlay[x][b]
>
> \setupbackgrounds ... [background={a,foreground,b}
>
> etc .. in your module you can just add a few more in the chain  
> (unknown ones are ignored)

Thanks, Hans and Luigi, that was very fast! Yes, this works wonderfully!

All best

Thomas
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Re: add layer to page

[Aditya Mahajan]

On Sun, 28 Jun 2009, Thomas A. Schmitz wrote:

> Hi all,
>
> I have a vague memory that there was a message (by Wolfgang Schuster?) about 
> this a couple of months ago, but I'm unable to find anything in the archives. 
> What I want: add a layer on top of the current page. This page is created 
> with the simpleslides-module, so it already contains several layers. I want 
> something on top of all that, and I seem to remember that there was some 
> option to say "typeset the current layers + this additional one." Can 
> somebody help my memory?

Do you mean: 
http://archive.contextgarden.net/message/20060115.080349.8efe83be.en.html

This works with MkII but not MkIV.

For example,
\usemodule[simpleslides][style=BigNumber]

\defineoverlay
   [test]
   [{\framed[align={middle,middle},
             width=\overlaywidth,
             height=\overlayheight]{TEST}}]

\starttext
\SlideTitle {ABC} \input tufte \page
\SlideTitle {ABC} 
\expandparameters\setupbackgrounds[page][background={\currentvalue,test}]
\input tufte
\stoptext

Aditya
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