* Placeformula environment
@ 2003-01-15 12:28 BOEDE
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From: BOEDE @ 2003-01-15 12:28 UTC (permalink / raw)
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Hi Hans,
At this moment I am dealing with some chemical formulae.
I ought to place them always in such a way that the may use the width of the
textarea independent of the fact that the \placeformula may occur within an
itemisation. - How to do this?
Some of the formulae are broader than the paper-width. So I tried to place
the formulae in buffers, which are put into place with
\placefigure[left][fig:DEZ1]{none}{\externalfigure[DEZ1][type=buffer,width=\
textwidth]}.
There arise two questions:
1. It looks like that the sizing mechanism does not quite what I expect,
because the formulae still stick out into the margin?
2. Independently from the way the \placefigure mechanisme is used, there is
a problem with the following paragraph?
Could you please have a look into this matter.
See attached file
Groet Willi
[-- Attachment #2: placeformula.tex --]
[-- Type: application/octet-stream, Size: 1768 bytes --]
\setupoutput[pdftex]
\usemodule[pictex,chemic]
\setuplayout
[width=10cm,
backspace=2.5cm]
\setupbodyfont[ss,12pt]
\startbuffer[DEZ1]
\placeformula
\startformula
\chemical{(C_2H_5)_2Zn}{DEZ}
\chemical{PLUS}
\chemical{2H^\oplus}{waterstof (zuur)}
\chemical{GIVES}
\chemical{Zn^{2\oplus}}{zinkion}
\chemical{PLUS}
\chemical{2(C_2H_6)}{ethan}
\stopformula
\stopbuffer
\starttext
\showframe
\startitemize[n]
\head DEZ (dimethylzink)
\startitemize[1,packed]
\item $(C_2H_5)_2Zn$
\head Reactie:
\placefigure[left][fig:DEZ1]{none}{\externalfigure[DEZ1][type=buffer,width=\textwidth]}
\item DEZ is een gasvormige stof, dringt zeer goed door in het papier
\item $ZnO$ blijft als basische reserve in het papier.
\item Gevaarlijke stof, reageerd meteen met $H_2O$.
\stopitemize
\stopitemize
Anders opgezet:
\subsubsubject{DEZ}
\startitemize[1,packed]
\item $(C_2H_5)_2Zn$
\head Reactie:
\stopitemize
\placefigure[left][fig:DEZ1]{none}{\externalfigure[DEZ1][type=buffer,width=\textwidth]}
\startitemize[1,packed]
\item DEZ is een gasvormige stof, dringt zeer goed door in het papier
\item $ZnO$ blijft als basische reserve in het papier.
\item Gevaarlijke stof, reageerd meteen met $H_2O$.
\stopitemize
Derde manier van opzet:
\blank
Dit is de method met DEZ
\placefigure[left][fig:DEZ1]{none}{\externalfigure[DEZ1][type=buffer,width=\textwidth]}
\blank
DEZ is een gasvormige stof, dringt zeer goed door in het papier. \par
$ZnO$ blijft als basische reserve in het papier. \par
Gevaarlijke stof, reageerd meteen met $H_2O$.
\stoptext
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