Re: [NTG-context] lmtx update / teaser
On 3/2/2021 11:15 AM, mf wrote:
Il 01/03/21 15:44, Hans Hagen ha scritto:
\starttext
\startuseMPgraphic{circle}
lmt_parshape [
path = fullcircle scaled 136mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\start
\startshapedparagraph[list=circle,mp=circle,repeat=yes,method=cycle]%
list=... refers to a previous \startparagraphshape definition, so mp=...
tells ConTeXt that the definition is derived from MetaPost code instead.
You can go completely crazy with this:
\setupbodyfont[pagella,10pt]
\showframe
\setuplayout[width=middle,height=middle,footer=0pt]
\startuseMPgraphic{circle}
lmt_parshape [
% path = fullcircle scaled 136mm,
path = fullcircle scaled TextWidth randomized 2cm,
% offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\starttext
\startshapedparagraph[mp=circle,repeat=yes,method=cycle]%
\setupalign[verytolerant,stretch,last]\dontcomplain
\dorecurse{100}{
{\darkred \samplefile{tufte}}
{\darkgreen \kerncharacters[.125]\samplefile{ward}}
{\darkblue\it \samplefile{thuan}}
{\darkcyan\bf \samplefile{zapf}}
{\darkmagenta \bi \samplefile{sapolsky}}
{\darkyellow \smallcaps \samplefile{davis}}
\par % \blank
}
\stopshapedparagraph
\stoptext
It might work for a children book or so,
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] lmtx update / teaser
On 3/2/2021 11:15 AM, mf wrote:
Il 01/03/21 15:44, Hans Hagen ha scritto:
\starttext
\startuseMPgraphic{circle}
lmt_parshape [
path = fullcircle scaled 136mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\start
\startshapedparagraph[list=circle,mp=circle,repeat=yes,method=cycle]%
list=... refers to a previous \startparagraphshape definition, so mp=...
tells ConTeXt that the definition is derived from MetaPost code instead.
you're right, the list= can be removed (you can do that and see that it
still works)
Just mp=... could be enough, but maybe "list=xyz,mp=xyz" makes it clear
that mp is used to get a parshape from MetaPost instead of a
\startparagraphshape definition.
\setupalign[verytolerant,stretch,last]\dontcomplain
What's the meaning of \dontcomplain? Why is it needed there?
I don't want to see messages about underful boxes cluttering my log (and
such shapes tend to produce them).
BTW, \startparagraphshape, \stopparagraphshape, \startshapedparagraph,
\stopshapedparagraph should be added to the .xml documentation files.
WOlfgang normally picks up these new thinsg and adds them but we update
the xml files only periodically.
The "right", "left", "both", "copy", "repeat" syntax in
\startparagraphshape is really handy.
I might actually add "metapost {name}" too and "delete n" to wipe out
some previous ones. Rather trivial but we need to be able to say that we
'added a new feature' occasionally. I couldn't yet think of more than
'cycle' and 'repeat' but who knows what users want ... (like some
autofit loop).
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] lmtx update / teaser
Il 01/03/21 15:44, Hans Hagen ha scritto:
\starttext
\startuseMPgraphic{circle}
lmt_parshape [
path = fullcircle scaled 136mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\start
\startshapedparagraph[list=circle,mp=circle,repeat=yes,method=cycle]%
list=... refers to a previous \startparagraphshape definition, so mp=...
tells ConTeXt that the definition is derived from MetaPost code instead.
Just mp=... could be enough, but maybe "list=xyz,mp=xyz" makes it clear
that mp is used to get a parshape from MetaPost instead of a
\startparagraphshape definition.
\setupalign[verytolerant,stretch,last]\dontcomplain
What's the meaning of \dontcomplain? Why is it needed there?
BTW, \startparagraphshape, \stopparagraphshape, \startshapedparagraph,
\stopshapedparagraph should be added to the .xml documentation files.
The "right", "left", "both", "copy", "repeat" syntax in
\startparagraphshape is really handy.
Thanks,
Massi
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Re: [NTG-context] lmtx update / teaser
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
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] lmtx update / teaser
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 ?
Best regards: Otared
% begin example-circular-shape.tex
\starttext
%\startuseMPgraphic{circle}
% lmt_parshape [
% path = fullcircle scaled 136mm,
% offset = 2mm,
% bottomskip = - 1.5LineHeight,
% ] ;
%\stopuseMPgraphic
\startuseMPgraphic{circleBis}
lmt_parshape [
path = fullcircle scaled 90mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\startalignment[middle]
%\startplacefigure[align=middle,number=no]
\start
\startshapedparagraph[list=circle,mp=circleBis,repeat=yes,method=repeat]%
\setupalign[verytolerant,stretch,last]
\dontcomplain
{\darkred \samplefile{thuan}}
\stopshapedparagraph
\stop
%\stopplacefigure
\stopalignment
\stoptext
% end example-circular-shape.tex
> On 1 Mar 2021, at 15:44, Hans Hagen wrote:
>
> Hi,
>
> I uploaded a new lmtx. As I'm currently going through the metafun todo files
> I ended up at the fancy shape part (parshapes) running over multiple
> paragraphs and decided to provide a (kind of low level) interface that
> integrates that. The example code is a few decades old but still works ok (i
> might try to improve them a bit some day). Anyway, here is a teaser:
>
> \starttext
>
> \startuseMPgraphic{circle}
>lmt_parshape [
>path = fullcircle scaled 136mm,
>offset = 2mm,
>bottomskip = - 1.5LineHeight,
>] ;
> \stopuseMPgraphic
>
> \start
> \startshapedparagraph[list=circle,mp=circle,repeat=yes,method=cycle]%
>\setupalign[verytolerant,stretch,last]\dontcomplain
>{\darkred \samplefile{tufte}}\par
>{\darkgreen \samplefile{tufte}}\par
>{\darkblue\samplefile{tufte}}\par
>{\darkcyan\samplefile{tufte}}\par
>{\darkmagenta \samplefile{tufte}}\par
> \stopshapedparagraph
> \stop
>
> \page
>
> \start
> \startshapedparagraph[list=circle,mp=circle,repeat=yes,method=repeat]%
>\setupalign[verytolerant,stretch,last]\dontcomplain
>{\darkred \samplefile{tufte}}
>{\darkgreen \samplefile{tufte}}
>{\darkblue\samplefile{tufte}}
>{\darkcyan\samplefile{tufte}}
>{\darkmagenta \samplefile{tufte}}
> \stopshapedparagraph
> \stop
>
> \stoptext
>
> The interface is still somewhat rough (no grouping for instance, not a real
> envrionment so that might change) but seems to work ok. One can also go the
> tex route and say:
>
> \startparagraphshape[test]
>left 1mm right 1mm
>left 2mm right 2mm
>left 3mm right 3mm
>copy 8
>left 4mm right 4mm
>left 5mm right 5mm
>left 5mm hsize 10cm
> \stopparagraphshape
>
> or
>
> \startparagraphshape[test]
>left 1mm right 1mm
>right 3mm
>left 5mm right 5mm
>repeat
> \stopparagraphshape
>
> or
>
> \startparagraphshape[test]
>both 1mm both 2mm both 3mm both 4mm both 5mm both 6mm
>both 7mm both 6mm both 5mm both 4mm both 3mm both 2mm
> \stopparagraphshape
>
> or
>
> \startparagraphshape[test-repeat]
>both 1mm both 2mm both 3mm both 4mm both 5mm both 6mm
>both 7mm both 6mm both 5mm both 4mm both 3mm both 2mm
>repeat
> \stopparagraphshape
>
> and use that with:
>
> \startshapedparagraph[list=test]
>\dorecurse{8}{\showparagraphshape\samplefile{tufte} \par}
> \stopshapedparagraph
>
> or
>
> \startshapedparagraph[list=test-repeat]
>\dorecurse{8}{\showparagraphshape\samplefile{tufte} \par}
> \stopshapedparagraph
>
> Some more info is in the lowlevel-paragrsph document (part of the low level
> series).
>
> This kind of features falls into the category 'fancy' (no one reqtested it),
> nice for posters and covers. It might evolve depending on needs for fancy
> features, but as said, it's currently a side track of metafun, so it's also
> in the category 'fun'. It's code for 'controlled' usage.
>
> Hans
>
> -
> Hans Hagen | PRAGMA ADE
> Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
> tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -
> ___
> If your question is of interest to others as well, please add an entry to the
> Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage :
[NTG-context] lmtx update / teaser
Hi,
I uploaded a new lmtx. As I'm currently going through the metafun todo
files I ended up at the fancy shape part (parshapes) running over
multiple paragraphs and decided to provide a (kind of low level)
interface that integrates that. The example code is a few decades old
but still works ok (i might try to improve them a bit some day). Anyway,
here is a teaser:
\starttext
\startuseMPgraphic{circle}
lmt_parshape [
path = fullcircle scaled 136mm,
offset = 2mm,
bottomskip = - 1.5LineHeight,
] ;
\stopuseMPgraphic
\start
\startshapedparagraph[list=circle,mp=circle,repeat=yes,method=cycle]%
\setupalign[verytolerant,stretch,last]\dontcomplain
{\darkred \samplefile{tufte}}\par
{\darkgreen \samplefile{tufte}}\par
{\darkblue\samplefile{tufte}}\par
{\darkcyan\samplefile{tufte}}\par
{\darkmagenta \samplefile{tufte}}\par
\stopshapedparagraph
\stop
\page
\start
\startshapedparagraph[list=circle,mp=circle,repeat=yes,method=repeat]%
\setupalign[verytolerant,stretch,last]\dontcomplain
{\darkred \samplefile{tufte}}
{\darkgreen \samplefile{tufte}}
{\darkblue\samplefile{tufte}}
{\darkcyan\samplefile{tufte}}
{\darkmagenta \samplefile{tufte}}
\stopshapedparagraph
\stop
\stoptext
The interface is still somewhat rough (no grouping for instance, not a
real envrionment so that might change) but seems to work ok. One can
also go the tex route and say:
\startparagraphshape[test]
left 1mm right 1mm
left 2mm right 2mm
left 3mm right 3mm
copy 8
left 4mm right 4mm
left 5mm right 5mm
left 5mm hsize 10cm
\stopparagraphshape
or
\startparagraphshape[test]
left 1mm right 1mm
right 3mm
left 5mm right 5mm
repeat
\stopparagraphshape
or
\startparagraphshape[test]
both 1mm both 2mm both 3mm both 4mm both 5mm both 6mm
both 7mm both 6mm both 5mm both 4mm both 3mm both 2mm
\stopparagraphshape
or
\startparagraphshape[test-repeat]
both 1mm both 2mm both 3mm both 4mm both 5mm both 6mm
both 7mm both 6mm both 5mm both 4mm both 3mm both 2mm
repeat
\stopparagraphshape
and use that with:
\startshapedparagraph[list=test]
\dorecurse{8}{\showparagraphshape\samplefile{tufte} \par}
\stopshapedparagraph
or
\startshapedparagraph[list=test-repeat]
\dorecurse{8}{\showparagraphshape\samplefile{tufte} \par}
\stopshapedparagraph
Some more info is in the lowlevel-paragrsph document (part of the low
level series).
This kind of features falls into the category 'fancy' (no one reqtested
it), nice for posters and covers. It might evolve depending on needs for
fancy features, but as said, it's currently a side track of metafun, so
it's also in the category 'fun'. It's code for 'controlled' usage.
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : http://contextgarden.net
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