> Am 30.03.2015 um 21:39 schrieb Hans Hagen <pra...@wxs.nl>:
>
> On 3/30/2015 5:07 PM, Wolfgang Schuster wrote:
>> Hi Hans,
>>
>> the \MPr gives an empty string when the page and paper size are the same.
>>
>> The first papersize setups gives the wrong output while the second setup
>> with different sizes gives the right output.
>>
>> \setuppapersize[A6][A6] % wrong.pdf
>> %\setuppapersize[A6][A5] % right.pdf
>>
>> \starttext
>>
>> \dontleavehmode\xypos{testposition}
>>
>> \startlines[style=mono]
>> X: \MPx{testposition}
>> Y: \MPy{testposition}
>> R: \MPr{testposition}
>> \stoplines
>>
>> \stoptext
>
> this is because the page region is only used fpr special pusposed and only
> flushed when a page is mapped onto a larger papersize
>
> anyway, as you seem to need it i'll make a virtual region out of it
The \MPr value is needed for the layer mechanism when you use “position=yes”.
\definelayer[mylayer]
\setupbackgrounds[page][background=mylayer]
\starttext
a \setlayer[mylayer][position=yes]{b} c
\stoptext
Wolfgang_______________________________________________
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