[NTG-context] Questions on columnsetspan (and grids and backgrounds)

Hans Hagen j.hagen at xs4all.nl
Tue May 14 10:39:40 CEST 2019


On 5/13/2019 5:59 PM, Mikael P. Sundqvist wrote:
> Den lör 11 maj 2019 10:28Mikael P. Sundqvist <mickep at gmail.com 
> <mailto:mickep at gmail.com>> skrev:
> 
>     Hi,
> 
>     I have for some hours tried to understand how to work with
>     columnsetspans (I'm trying with an updated lmtx), and have some
>     questions.
> 
>     1) Is it only the floats that has the long list of placement options
>     (given on p. 18 in the columnsets manual), or should they also apply
>     to columnsetspans and columnsetareas? (I cannot get it to work with
>     "default=fxtb:2*10" and similar options for other elements than
>     floats). It would be useful to have it for other type of elements as
>     well.
> 
>     2) What is the current correct way to get back on grid after formulas?
>     The only key that had lead me to something that seems to work in
>     \setupformulas is "option=depth". Is that the way to go?
> 
>     3) This is a bit unrelated, but is it possible to set page backgrounds
>     on specific page. Something like \setupbackgrounds[page][page=3, ...]
>     (I cannot find any keys for this in setup-en.pdf). Right now I can set
>     it for an odd and an even page, but then if I want a background on the
>     page after that, I have to put that code at the place where it will be
>     used. (I got an error with \startpostponing[+1] ... \stoppostponing)
> 
>     4) To be a bit more concrete on the first issue: In the example below,
>     how can I place the columnsetspan at the bottom right? Second and
>     third column, 10 lines down? I attach the result of running this file.
> 
>     /Mikael
> 
>     \setuplayout[grid=yes]
>     \showgrid
>     \definecolumnset[three][n=3]
> 
>     \definecolumnsetspan[two][
>     n=2,
>     background=color,
>     backgroundcolor=lightgray,
>     ]
> 
>     \starttext
>     \startcolumnset[three]
>     \samplefile{knuth}
> 
>     \startcolumnsetspan[two][default=btrl]
>     \samplefile{ward}
>     \stopcolumnsetspan
> 
>     \dorecurse{5}{\samplefile{knuth}\par}
>     \stopcolumnset
>     \stoptext
> 
> 
> Hi!
> 
> I have looked more carefully at the columnsets manual, and it looks like 
> (parts of) the columnsets mechanism is somehow broken at the moment, 
> since some of the examples there are not showing what they are supposed to.

the mkii mechanism has been replaced by a new one but it's not 
completely compatible (these placements are actually for floats and 
spans were just a special kind abusing that mechanism)

> Can this be confirmed? Is there a plan to get it to work soon again?
i'll put it on the todo list

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