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 <somewidth>{\hss<come content>\hss}
is good enough for centering
Hans
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Hans Hagen | PRAGMA ADE
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