On 3/1/2021 6:27 PM, Otared Kavian wrote:
Hi Hans,
Thank you for the new upload.
The teaser examples work fine, many thanks !
I have a question though: how can one center within a page a text, for example
typeset in a circular shape? I tried with \startalignment, and also with
\startplacefigure but none of these gives a centered circular shape.
Also I noticed that if one removes the comment at the end of
\startshapedparagraph, or add a blank line after that, then the circular shape
is destroyed: is this on purpose ?
\starttext
\startuseMPgraphic{circleBis}
lmt_parshape [
path = fullcircle scaled 90mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\startplacefigure[align=middle,number=no]
\framed[width=90mm,offset=2mm,align=normal]\bgroup
\startshapedparagraph
[list=circle,mp=circleBis,repeat=yes,method=repeat]%
\setupalign[verytolerant,stretch,last]\dontcomplain
{\darkred \samplefile{thuan}}
\stopshapedparagraph
\egroup
\stopplacefigure
\stoptext
We're talking parshapes here, think of
\parshape 2
2mm 10cm
4mm 12cm
or
\parshape 2
options 1 % force a repeat
2mm 10cm
4mm 12cm
but then nicely wrapped in a macro. The circle is (cf metafun manual)
converted into such a parshape. A parshape is forgotten when a new
paragraph is started, but ... we have extra magic that revives them
which is why the multi-page-par examples work too. The cycle and repeat
methods do that (using abit diufferent tricks than the 20 year old one
but not that different); these methods are independent of the parshape's
repeat option itself, which is an engine feature.
Messing with left/right 'align' will also bring left/rightskip into the
game so normally you will not do that. I admit it take a bit of
imagination to get the picture. The 'last' keyword is some old context
feature that centers the last line (which looks nicer in a circle) which
is using some parfillskip magic.
Hans
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Hans Hagen | PRAGMA ADE
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tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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