Re: placing (on) layers

[Willi Egger via ntg-context <ntg-context@ntg.nl>]

Hi Hraban,

if you flush a layer like in your example, then the layer is attached to the left top of the text area. If you want to place it in another place, you will have to move it by x and y dimensions to the right place in the first brackets of the \setlayerframed command . — What would be possible is to attach the layer as a background to one of the different areas of the  paper.

I hope this gives you a hint how to proceed..

Willi

> On 15 Apr 2022, at 21:51, Henning Hraban Ramm via ntg-context <ntg-context@ntg.nl> wrote:
> 
> Hi again,
> 
> I’m always struggling with putting stuff on layers, since these just never start where I’d expect them to, and the offsets changed a few times within the last years.
> 
> Please explain how I should define a layer that covers the whole page, since the following MWE is wrong (the layer always starts below the first line):
> 
> 
> \useMPlibrary[dum]
> 
> \setuppapersize[A5][A4]
> \setuplayout[
>  marking=on,
>  location=middle,
> ]
> \definemeasure[Bleed][3mm]
> \definemeasure[MaxHeight][{\dimexpr\paperheight + 2\measure{Bleed}\relax}]
> \definemeasure[MaxWidth][{\dimexpr\paperwidth + 2\measure{Bleed}\relax}]
> 
> \definelayer[papier][
>  preset=lefttop,
>  %x=0mm,y=0mm,
>  width=\paperwidth,
>  height=\paperheight,
> ]
> \setupbackgrounds[paper][background=cover,state=start]
> 
> 
> \starttext
> \showframe
> TEST
> 
> \setlayerframed[papier][
>  preset=lefttop,
>  %x=-\measure{Bleed},
>  %y=-\measure{Bleed},
>  offset=overlay,
>  %frame=off,
>  width=\measure{MaxWidth},
>  height=\measure{MaxHeight},
> ]{\externalfigure[dummy][
>  width=\measure{MaxWidth},height=\measure{MaxHeight}
> ]}
> 
> \flushlayer[papier]
> 
> \stoptext
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