Section head placement wrong when the after key is used

Section head placement wrong when the after key is used

[Marco Patzer]

Hi!

In the following example the 2nd section head stays on page one when
the “after” key is used. If the blackrule is commented out the
section head moves to page two as intended.

What's the reason the section head stays on the previous page when
the “after” is used and how to fix this?

\setuphead
  [section]
  [after=\blackrule]  %% works as desired when commenting this one out

\starttext
  \startsection [title=Foo]
    \samplefile{knuth}
  \stopsection

  \startsection [title=Bar]
    \framed[height=15cm]{}
    \samplefile{knuth}
  \stopsection
\stoptext

Marco
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Re: Section head placement wrong when the after key is used

[Pablo Rodriguez]

On 11/19/20 11:55 AM, Marco Patzer wrote:
> Hi!
> [...]
> What's the reason the section head stays on the previous page when
> the “after” is used and how to fix this?

Hi Marco,

by default (according to strc-def.mkiv), \section has "after=\blank".

In some cases, I had used "after={”\blank[samepage, medium]}" to prevent
similar issues.

In this case, a nasty trick could be "after={”\blackrule\blank[samepage,
Opt]}".

Just in case it helps,

Pablo
--
http://www.ousia.tk
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Re: Section head placement wrong when the after key is used

[Marco Patzer]

On Thu, 19 Nov 2020 16:53:52 +0100
Pablo Rodriguez <oinos@gmx.es> wrote:

> On 11/19/20 11:55 AM, Marco Patzer wrote:
> > Hi!
> > [...]
> > What's the reason the section head stays on the previous page when
> > the “after” is used and how to fix this?  
> 
> Hi Marco,
> 
> by default (according to strc-def.mkiv), \section has "after=\blank".
> 
> In some cases, I had used "after={”\blank[samepage, medium]}" to
> prevent similar issues.

In my actual document I already use \blank[halfline]. Changing this
to \blank[halfline, samepage] fixes it.

Thank you very much.

Marco
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