# Re: [NTG-context] Question to covers

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```Henning Hraban Ramm <mailto:te...@fiee.net>
20. Juli 2018 um 20:49```
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Hi Tomáš,

I don’t know of anything existing.
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Find attached what I use for a magazine – I include title and back pages in the main PDF (to get a complete issue for corrections and online distribution) and use that as externalfigure, just creating the spine anew.
```Hi Henning,

below is a modified version of your example where I changed a few things.

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1. I used the "measure" commands to set the spine values, the advantage of the \measure is that it falls back to 0pt when you try to use a undefined value.
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```
2. I determined the last page of the megazine with the \getfiguredimensions command, afterwards you can use the \noffigurepages command to get the last page of the document.
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```
3. I put the layer and frame settings for the \setlayerframed command in separate arguments.
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4. I got rid of the backgrounds setup for the layer. A better solution here is to create a page without margins which can be done with the "page" layout where you flush the collected content of the layer with the \flushlayer command.
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```
5. I set the texts for the isse number and title with the \setvariables command.
```
Wolfgang

%%%%%%
\definemeasure [SpineWidth]  [6mm]
\definemeasure [SpineOffset] [\dimexpr(\measure{SpineWidth}-9pt)/5\relax]

\definepapersize
[Cover]
[width=\dimexpr420mm+\measure{SpineWidth}\relax,
height=297mm]

\setuppapersize [Cover]

\setupexternalfigures [directory={_pdf}]

\useexternalfigure [MAG] [magazine.pdf]

\setvariables
[cover]
[issue={34},
topic={Topic}]

\setuplayout
[marking=on]

\definelayer
[whole]
[width=\paperwidth,
height=\paperheight]

\starttext

\startlayout [page]

\setlayer
[whole]
[x=0mm,
y=0mm]
{\getfiguredimensions[MAG]
\externalfigure[MAG][page=\noffigurepages]}

\setlayer
[whole]
[x=\dimexpr210mm+\measure{SpineWidth}\relax,
y=0mm]
{\externalfigure[MAG][page=1]}

\setlayerframed
[whole]
[x=210mm,
y=20mm]
[frame=off,
offset=overlay,
width=\measure{SpineWidth},
align=center]
{\getvariable{cover}{issue}}

\setlayerframed
[whole]
[x=210mm,
y=92mm]
[frame=off,
offset=overlay,
align=right,
width=\measure{SpineWidth},
height=190mm]
{\rotate
[rotation=90,
align={right,middle},
frame=off,
height=\measure{SpineWidth},
width=190mm]
{\vskip\measure{SpineOffset}
\vbox{MAGAZINE\hfill\getvariable{cover}{topic}}}}

\flushlayer [whole]

\stoplayout

\stoptext
%%%%%%
```
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