juh schrieb am 29.05.2020 um 10:29:
Dear all,
with your help I can colorize the empty even page right before a chapter starts
on the odd page. The mwe below shows it.
Now I would like to redefine the contents of the left page on the fly in the
text
so that I could place images on this page.
I thought that I could get a simple solution by inserting a TEXpage as even
page, but this does not work for several reasons. First a TEXpage is not counted
correctly like a normal page. And secondly I found now way to put it on the
even page.
So what I really want to achieve is a way to redefine this setups at some point
in the text to insert eg. a picture on the even page before a chapter.
\startsetups [chapter:before]
\doifoddpageelse
{}
{\pushbackground[page]
\setupbackgrounds[page][background=color,backgroundcolor=blue,]
\page[empty,right]
\popbackground}
\stopsetups
Here comes the not so mwe:
%% start mwe
\setuplayout [ location=doublesided ]
\setuppagenumbering[alternative=doublesided]
\definepagebreak [chapter] [footer,yes,header,footer,right]
\startsetups [chapter:before]
\doifoddpageelse
{}
{\pushbackground[page]
\setupbackgrounds[page][background=color,backgroundcolor=blue,]
\page[empty,right]
\popbackground}
\stopsetups
\setuphead
[chapter]
[
page=yes,
before=\directsetup{chapter:before},
]
\setupexternalfigure[location=default]
\starttext
\startchapter
[title={foo}]
\dorecurse{2}{\input tufte \par}
\stopchapter
\startchapter
[title={foo2}]
\dorecurse{6}{\input tufte \par}
\stopchapter
\startchapter
[title={bar}]
\input knuth
\startTEXpage
\externalfigure[cow.pdf][height=\paperheight,width=\paperwidth]
\stopTEXpage
\stopchapter
\startchapter
[title={baz}]
\input knuth
\stopchapter
\stoptext
%% stop mwe
As you see the image is not in the right place and of course the pagenumbering
is wrong.
Use \startTEXpage[pagestate=start] to increase the page number with TEX
pages.
I want that one of these blue pages shows an image. Is this possible?
Yes but there are different ways for different requirements.
- Do you you have a picture before *every* chapter?
- Do you use full page images?
- Are the images cropped to fit the page dimension, stretched or
centered with margins?
- ...
Wolfgang
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
___________________________________________________________________________________
