Message: 12 Date: Mon, 23 Feb 2004 10:14:38 +0100 To: [EMAIL PROTECTED] From: Hans Hagen <[EMAIL PROTECTED]> Subject: Re: [NTG-context] alignment of marginal material Reply-To: [EMAIL PROTECTED]
At 21:40 22/02/2004, Jonathan Nicholl wrote:
I am trying to write a macro which places a picture in the margin. I would
like the centre of the picture to be aligned vertically with the centre of
the paragraph in which I call the macro. The following works in simple cases:
\def\hazard#1{% \setbox0=\vbox{#1}% \inleft [low] {% \framed% [height=\ht0,% top=\vss,% bottom=\vss,% frame=off]% {\externalfigure [sharp turn sign]}% }% #1}%
If I type something like
\hazard{…paragraph text…}
this produces what I want. But it breaks down with mathematics.
\hazard{% \startformula …mathematics… \stopformula }
produces the picture aligned with the bottom of the mathematics.
A solution to this problem escapes me. Can anyone suggest an improved macro?
Here is my 10 minute solution ... if i'm in the mood i can make an option of it
Maybe other people would like some support for this kind of thing. Certainly I would find it useful if, when I wrote `\inmargin…' somewhere inside a paragraph, I could specify an option to determine the vertical alignment of the marginal material. Suppose `top' aligned the top of the marginal material with the top of the paragraph, `mid' the middle of the marginal material with the midpoint of the paragraph, and `bot' the bottom of the marginal material with the bottom of the paragraph. That would be good.
\newcounter\CurrentFigPar
\def\StartFigPar#1%
{\doglobal\increment\CurrentFigPar
\placefigure
[leftmargin,line,none]{}
{\setbox\scratchbox\hbox{#1}%
\ifnum\MPp{figpar:b:\CurrentFigPar}=\MPp{figpar:e: \CurrentFigPar}\relax
\scratchdimen\MPy{figpar:b:\CurrentFigPar}%
\advance\scratchdimen-\MPy{figpar:e:\CurrentFigPar}%
\advance\scratchdimen-\ht\scratchbox
\advance\scratchdimen\lineheight
\else
\scratchdimen\zeropoint
\fi
\vbox{\vskip.5\scratchdimen\box\scratchbox}}%
\indent\hpos{figpar:b:\CurrentFigPar}{\strut}\ignorespaces}
\def\StopFigPar
{\removeunwantedspaces\hpos{figpar:e:\CurrentFigPar}{\strut}\endgraf}
\starttext
\input tufte
\StartFigPar{\externalfigure[cow.pdf][width=1cm]} \input tufte \StopFigPar
\input tufte
\stoptext=20
Thank you very much indeed, Hans. This puts cow.pdf in the right place in the margin. One problem remains. Surrounding a paragraph by \StartFigPar…\StopFigPar often messes up the inter-paragraph vertical spacing. In particular, surrounding \startformula…\stopformula by \StartFigPar…\StopFigPar introduces big spaces above and below the mathematics.
Is there a simple way to stop this? It would be good if introducing a few \StartFigPar…\StopFigPar pairs to a document had no effect at all on the main body of the document, and just put figures in the margin.
-----------------------
Jonathan Nicholl Department of Philosophy King's College London
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