Re: [NTG-context] Moving horizontally a whole ensemble of layers in the same run?
On Wed, Dec 18, 2019 at 06:13:51PM +0100, Wolfgang Schuster wrote:
> Rudolf Bahr schrieb am 18.12.2019 um 15:13:
> > On Tue, Dec 17, 2019 at 07:30:49PM +0100, Hans Hagen wrote:
> >
> > > you need to make a MWE to show what you mean
> > >
> > > normally
> > >
> > > \hbox to {\hss\hss}
> > >
> > > is good enough for centering
> > Here is my MWE. Think of a photo album. To make it interesting the pages
> > should
> > all be different. To this purpose layers are a good means. I'd like to
> > centre
> > the layers on their page without doing so manually and without changig the
> > distances
> > between them. Using luacode one can calculate the distance d between the
> > leftmost
> > and the rightmost edge. Half the difference (\textwidth - d) is the amount
> > to move
> > the whole layer ensemble.
> >
> > My question is now: Does in context exist a possibility to move all layers
> > jointly
> > without correcting all their x-values subsequently?
>
> 1. You can use hoffset and voffset to shift all layers.
>
> 2. You can use \setlayerframed to put paragraphs in a layer.
>
>
> \setuppapersize[A4,landscape]
>
> \setupexternalfigures[location=default]
>
> \definelayer[LAY]
>
> \starttext
>
> \startbuffer
>
> \setlayerframed
> [LAY]
> [x=0pt,
> y=-8pt]
> [frame=off,
> width=.35\textwidth,
> align={normal,tolerant}]
> {\externalfigure[cow][width=\hsize]
> \blank[line]
> \input tufte\par}
>
> \setlayerframed
> [LAY]
> [x=225pt,
> y=0pt]
> [orientation=90,
> foregroundstyle={\definedfont[Serif at 82pt]}]
> {JOURNEY}
>
> \setlayerframed
> [LAY]
> [x=360pt,
> y=50pt]
> [frame=off,
> width=200pt,
> align={normal,tolerant}]
> {\input ward
> \blank[line]
> \externalfigure[hacker][height=.4\textheight]}
>
> \flushlayer[LAY]
>
> \stopbuffer
>
> \getbuffer
>
> \page
>
> \setuplayer[LAY][hoffset=4cm,voffset=-2cm]
>
> \getbuffer
>
> \stoptext
>
> Wolfgang
>
Thank you very much, Wolfgang! That is exactly what I need
and what I was looking for! Very nice coding indeed!
Rudolf
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Re: [NTG-context] Moving horizontally a whole ensemble of layers in the same run?
Rudolf Bahr schrieb am 18.12.2019 um 15:13:
On Tue, Dec 17, 2019 at 07:30:49PM +0100, Hans Hagen wrote:
you need to make a MWE to show what you mean
normally
\hbox to {\hss\hss}
is good enough for centering
Here is my MWE. Think of a photo album. To make it interesting the pages should
all be different. To this purpose layers are a good means. I'd like to centre
the layers on their page without doing so manually and without changig the
distances
between them. Using luacode one can calculate the distance d between the
leftmost
and the rightmost edge. Half the difference (\textwidth - d) is the amount to
move
the whole layer ensemble.
My question is now: Does in context exist a possibility to move all layers
jointly
without correcting all their x-values subsequently?
1. You can use hoffset and voffset to shift all layers.
2. You can use \setlayerframed to put paragraphs in a layer.
\setuppapersize[A4,landscape]
\setupexternalfigures[location=default]
\definelayer[LAY]
\starttext
\startbuffer
\setlayerframed
[LAY]
[x=0pt,
y=-8pt]
[frame=off,
width=.35\textwidth,
align={normal,tolerant}]
{\externalfigure[cow][width=\hsize]
\blank[line]
\input tufte\par}
\setlayerframed
[LAY]
[x=225pt,
y=0pt]
[orientation=90,
foregroundstyle={\definedfont[Serif at 82pt]}]
{JOURNEY}
\setlayerframed
[LAY]
[x=360pt,
y=50pt]
[frame=off,
width=200pt,
align={normal,tolerant}]
{\input ward
\blank[line]
\externalfigure[hacker][height=.4\textheight]}
\flushlayer[LAY]
\stopbuffer
\getbuffer
\page
\setuplayer[LAY][hoffset=4cm,voffset=-2cm]
\getbuffer
\stoptext
Wolfgang
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Re: [NTG-context] Moving horizontally a whole ensemble of layers in the same run?
On Tue, Dec 17, 2019 at 07:30:49PM +0100, Hans Hagen wrote:
> you need to make a MWE to show what you mean
>
> normally
>
> \hbox to {\hss\hss}
>
> is good enough for centering
Here is my MWE. Think of a photo album. To make it interesting the pages should
all be different. To this purpose layers are a good means. I'd like to centre
the layers on their page without doing so manually and without changig the
distances
between them. Using luacode one can calculate the distance d between the
leftmost
and the rightmost edge. Half the difference (\textwidth - d) is the amount to
move
the whole layer ensemble.
My question is now: Does in context exist a possibility to move all layers
jointly
without correcting all their x-values subsequently?
I append the pdf-file of my MWE.
Rudolf
-- MWE
-
\setuppapersize[A4,landscape]
\setupexternalfigures[location={default}]
\starttext
\definelayer[LAY]%
\setlayer[LAY][x=0pt,y=-8pt]%
{%
\vbox
{%
\hsize=.35\textwidth
\externalfigure[cow][width=\hsize]%
\vskip\lineheight
\input tufte
}
}
\setlayer[LAY][x=210pt,y=0pt]%
{%
\definedfont[Serif at 82pt]
\rotate[rotation=90,frame=on,offset=2pt]{\hbox{JOURNEY}}
}
\setlayer[LAY][x=360pt,y=50pt]%
{%
\vbox
{%
\hsize=200pt
\input ward
\vskip\lineheight
\externalfigure[hacker][height=.4\textheight]%
}
}
\flushlayer[LAY]
\page
\definelayer[LAY]%
\setlayer[LAY][x=0pt,y=0pt]%
{\externalfigure[mill][height=.4\textheight]}
\setlayer[LAY][x=150pt,y=0pt]%
{\externalfigure[hacker][height=.4\textheight]}
\setlayer[LAY][x=0pt,y=200pt]%
{\externalfigure[cow][width=.5\textwidth]}
\setlayer[LAY][x=\dimexpr.65\textwidth+40pt\relax,y=0pt]%
{%
\vbox
{%
\hsize=.2\textwidth
\startalignment[flushleft]
\input ward
\vskip\lineheight
\input ward
\stopalignment
}
}
\flushlayer[LAY]
\stoptext
mwe-komprimiert.pdf
Description: Adobe PDF document
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Re: [NTG-context] Moving horizontally a whole ensemble of layers in the same run?
On 12/17/2019 7:18 PM, Rudolf Bahr wrote:
Hi Hans,
assume we fixed between "\definelayer" and "\flushlayer" a whole ensemble
of layers on a page. And by calculating per luacode we determined the leftmost
and the rightmost edge of the ensemble and would now like to horizontally centre
the ensemble. We don't know the rightmost edge before we placed the last layer.
By luacode we can calculate how much the centring movement should be, because we
know "\textwidth", but we cannot save the calculated centring value in the
context
program for another run. Saving the luacode values of hundred of pages in
flattened
lua tables would be possible, but rather awkward; the problem of relating pages
to
tables would arise, especially when pages are taken out or additional pages are
inserted.
Do you know a way to settle the centring in the same context run in which the
layers
are placed? Could "\flushlayer" perform it somehow?
you need to make a MWE to show what you mean
normally
\hbox to {\hss\hss}
is good enough for centering
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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[NTG-context] Moving horizontally a whole ensemble of layers in the same run?
Hi Hans, assume we fixed between "\definelayer" and "\flushlayer" a whole ensemble of layers on a page. And by calculating per luacode we determined the leftmost and the rightmost edge of the ensemble and would now like to horizontally centre the ensemble. We don't know the rightmost edge before we placed the last layer. By luacode we can calculate how much the centring movement should be, because we know "\textwidth", but we cannot save the calculated centring value in the context program for another run. Saving the luacode values of hundred of pages in flattened lua tables would be possible, but rather awkward; the problem of relating pages to tables would arise, especially when pages are taken out or additional pages are inserted. Do you know a way to settle the centring in the same context run in which the layers are placed? Could "\flushlayer" perform it somehow? Rudolf ___ 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 ___
