Henning Hraban Ramm schrieb am 13.09.2019 um 18:51:
Hi, in an example document I’m trying to get pictures of random size and
placement.
Unfortunately the expansion is over my head:
%%%%%%%%%%%%%%%%%
\useMPlibrary[dum]
\usemodule[visual]
\startluacode
local locations = {
'top',
'bottom',
'left',
'right',
}
function RandomLocation()
context(locations[math.random(1,#locations)])
end
\stopluacode
\newdimen\PicWidth
\PicWidth=\textwidth
\define[1]\Blindbild{
\getrandomnumber\imgH{1}{9}
\PicWidth=\textwidth
\doif{#1}{left}{\PicWidth=.4\textwidth}
\doif{#1}{right}{\PicWidth=.4\textwidth}
\startplacefigure[location={#1},title={#1 \fakewords{3}{20}}]
\externalfigure[place #1][width=\PicWidth,height=\dimexpr\textheight * \imgH /
10 \relax]
\stopplacefigure
}
Put the value of the random location in a macro.
\define[1]\Blindbild
{\edef\PicLocation{#1}%
\getrandomnumber\imgH{1}{9}%
\PicWidth=\textwidth
\doifinset{\PicLocation}{left,right}{\PicWidth=.4\textwidth}%
\startplacefigure[location={\PicLocation},title={\PicLocation\space\fakewords{3}{20}}]
\externalfigure
[place \PicLocation]
[width=\PicWidth,
height=\dimexpr\textheight * \imgH / 10 \relax]
\stopplacefigure}
Wolfgang
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