Muchas gracias Pablo, that was most helpful, and of course it works.
The particular part that I was missing (there was already
alternative=doublesided in the preamble) of course was the
\startsectionblockenvironment[bodypart], so thanks for highlighting that.
I was also a bit confused about the difference between state=repeat and
repeat=yes, and I can see that both do work in the snippet you gave me,
so perhaps there is no difference between these?
Julian
On 10/11/21 2:05 am, Pablo Rodriguez via ntg-context wrote:
On 11/9/21 4:18 AM, jbf via ntg-context wrote:
I want a particular layer to repeat on recto pages only, but I don't
want this to happen in frontmatter, only in bodymatter.
This is what I have done, just before the first chapter after
\startbodymatter (but unsuccessfully; the layer repeats for every page
at the moment. I must have omitted something).
Hi Julian,
this is what you want:
\startsectionblockenvironment[bodypart]
\setupbackgrounds
[rightpage]
[background=butterfly]
\stopsectionblockenvironment
\startbodymatter
\setupbackgrounds
[rightpage]
[background=butterfly]
\startchapter[title={Chapter title}]
\definelayer[butterfly]
[x=0mm, y=0mm,repeat=yes,width=\paperwidth, height=\paperheight]
\setlayer[butterfly]
[hoffset=.99\textwidth, voffset=1cm]
{\externalfigure[bfly.jpg][width=1.5cm]}
\setupbackgrounds[page][background=butterfly]
The last line adds backgrounds to every page. And without doublesided,
there are not right and left pages.
And you don’t need the \define and \setlayer after \startchapter.
A complete sample would read:
\setuppagenumbering[alternative=doublesided]
\definelayer[butterfly][state=repeat]
\setlayer[butterfly]
[hoffset=.99\textwidth, voffset=1cm]
{butterfly}
\startsectionblockenvironment[bodypart]
\setupbackgrounds
[rightpage]
[background=butterfly]
\stopsectionblockenvironment
\def\rubbish%
{\dorecurse{2}
{\chapter{Chapter}
\dorecurse{25}{\input knuth}}}
\starttext
\startfrontmatter
\rubbish
\stopfrontmatter
\startbodymatter
\rubbish
\stopbodymatter
\startappendices
\rubbish
\stopappendices
\startbackmatter
\rubbish
\stopbackmatter
\stoptext
I hope it helps,
Pablo
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