grid+formulas: bug or expected behavior?

grid+formulas: bug or expected behavior?

[Luca Donetti]

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Dear all,
I'm typesetting a document with grid layout and some formulas, like in the
minimal example below:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setuplayout[grid=yes]
\showgrid

\starttext
\input knuth
%\blank
\startformula
  a = b + c
\stopformula
\input knuth
\stoptext
%%%%%%%%%%%%%%%%%%%%%%%%%%%%

I don't have any specific need for the alignment of the formula with
respect to the grid, but I expect the text below the formula to be on the
grid. However, I've not been able to achieve that with any of the layout
options described in the latest "details.pdf" manual: in all cases I've
tried the text below the formula doesn't "sit" on the grid.

While I do not understand this behavior, I've thought that it could be the
intended one, because this is what happens in chapter 4 of the "details"
manual. Then, I noticed that in older versions of the same manual (for
example the one included in texlive 2017) the behavior shown in chapter 4
is the one I expect: the text after formulas is aligned to the grid. So I'm
a bit puzzled: should the text after formulas be aligned to the grid or
not? Is this a (known?) bug or intended behavior?

If this is the expected behavior, I can live with that because by trial and
error I found a workaround. If I employ a \blank command before the formula
(as in the commented line in the above example), the text after the formula
is "correctly" aligned.

Thank you in advance.

LD

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Re: grid+formulas: bug or expected behavior?

[Henning Hraban Ramm]

Zitat von Luca Donetti <donetti@gmail.com>:

> I don't have any specific need for the alignment of the formula with
> respect to the grid, but I expect the text below the formula to be on the
> grid. However, I've not been able to achieve that with any of the layout
> options described in the latest "details.pdf" manual: in all cases I've
> tried the text below the formula doesn't "sit" on the grid.

Looking through my unread ML mails, I saw nobody answered to you.

Did you try enclosing your formulae in \startlinecorrection ...  
\stoplinecorrection ?
AFAIK that should do the job.



Greetlings, Hraban
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Re: grid+formulas: bug or expected behavior?

[Wolfgang Schuster]

Luca Donetti schrieb am 31.05.2019 um 20:46:
> Dear all,
> I'm typesetting a document with grid layout and some formulas, like in 
> the minimal example below:
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \setuplayout[grid=yes]
\setupformulas[option=depth]
> \showgrid
>
> \starttext
> \input knuth
> %\blank
> \startformula
> a = b + c
> \stopformula
> \input knuth
> \stoptext
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%
Wolfgang

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Re: grid+formulas: bug or expected behavior?

[Luca Donetti]

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Thank you Wolfgang.
LD

On Fri, Jul 26, 2019 at 1:08 PM Wolfgang Schuster <
wolfgang.schuster.lists@gmail.com> wrote:

> Luca Donetti schrieb am 31.05.2019 um 20:46:
> > Dear all,
> > I'm typesetting a document with grid layout and some formulas, like in
> > the minimal example below:
> >
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%
> > \setuplayout[grid=yes]
> \setupformulas[option=depth]
> > \showgrid
> >
> > \starttext
> > \input knuth
> > %\blank
> > \startformula
> > a = b + c
> > \stopformula
> > \input knuth
> > \stoptext
> > %%%%%%%%%%%%%%%%%%%%%%%%%%%%
> Wolfgang
>
>

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Re: grid+formulas: bug or expected behavior?

[luigi scarso]

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Hi Luca,
the size of your  message was a bit over the 100KByte limit of the mailing
list, but I have made an exception and approved it .
But (everybody) please stay under 100KByte, space is a precious resource.

-- 
luigi

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Re: grid+formulas: bug or expected behavior?

[Luca Donetti]

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> > I don't have any specific need for the alignment of the formula with
> > respect to the grid, but I expect the text below the formula to be on the
> > grid. However, I've not been able to achieve that with any of the layout
> > options described in the latest "details.pdf" manual: in all cases I've
> > tried the text below the formula doesn't "sit" on the grid.
>
> Looking through my unread ML mails, I saw nobody answered to you.
>
> Did you try enclosing your formulae in \startlinecorrection ...
> \stoplinecorrection ?
> AFAIK that should do the job.
>
> Greetlings, Hraban
>
>
Thank you Hraban,

Indeed what you suggest works. If I write:
  \startlinecorrection
  \startformula
    a = b + c
  \stopformula
  \stoplinecorrection
the text below the formula is correctly aligned to the grid.

However, what puzzles me is that the version _without_ \startlinecorrection
... \stoplinecorrection works with an old version of context (from texlive
2017). Moreover, i guess this is not something due to my setup, because I
observe the same (or at least very similar) behavior in the chapter of the
details.pdf manual about grid and math. In the attached screenshot I show
the first page of such chapter in the version shipped with a recent beta
(on the left) and with texlive 2017 (on the right). While in the old
version the text after the formulas is aligned to the grid, in the new
version of the manual this is not the case: the text is not aligned.

Is this a known (documented?) change or an unnoticed regression?

Thank you in advance,
LD

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