Thanks Wolfgang! Somehow I overlooked the two subtleties you are teaching me here:
\definelayer[Number][width=\paperwidth,height=\paperheight,doublesided=yes]
in which the option doublesided=yes, helps and the options [odd] or [even] in \setlayer:
\setlayer[Number][odd] \setlayer[Number][even]
I will wikify this later this weekend. Best regards: OK On 20 mai 2010, at 10:14, Wolfgang Schuster wrote:
Good example!
\setupcolors[state=start]
\setuppagenumbering[location=footer,alternative=doublesided]
\definelayer[Number][width=\paperwidth,height=\paperheight,doublesided=yes]
\define[1]\myNumber {\setlayer[Number][odd] [preset=righttop,voffset=45mm,hoffset=3mm] {\offset[location=rt,rightoffset=-3mm] {\tlap{\color[darkgreen]{\scale[height=30mm,width=22mm]{\ss#1}}}}}% \setlayer[Number][even] [preset=lefttop,voffset=45mm,hoffset=25mm] {\offset[location=tl,leftoffset=-3mm] {\tlap{\color[darkgreen]{\scale[height=30mm,width=22mm]{\ss#1}}}}}}
\setupbackgrounds[page][background=Number]
\starttext \dorecurse{4}{\myNumber{#1}\input knuth \page} \dorecurse{4}{\myNumber{#1}\dorecurse{6}{\input knuth }\page} \dorecurse{4}{\myNumber{#1}\dorecurse{3}{\input knuth }\page} \stoptext
Wolfgang