# [NTG-context] fluctuating baseline of header text

Hans Hagen pragma at wxs.nl
Sun Dec 28 18:55:15 CET 2014

```On 12/28/2014 12:39 PM, j. van den hoff wrote:
> On Sun, 28 Dec 2014 00:45:32 +0100, Hans Hagen <pragma at wxs.nl> wrote:
>
>> -- could such behaviour be achieved presently with some clever trick?
>>
>>  \showstruts
>>  \setuppagenumbering[style=\bfd\setcharstrut{0123456789}\strut,strut=no]
>>  - no default strut
>> - calculate one based on to-be-used-characters (tight case)
>> - apply that one
>>
>>  compare it with
>>  \setuppagenumbering[style=\bfd\setstrut\strut]
>>
>
> thanks a lot. that indeed fixes it.
>
>>  And then wikify it
>
> can do. although things are not yet 100% clear to me (not much to be
> found in the documentation). so is this right:
>
> -- I guess `\setstrut\strut' does set the strut to the maximum height of
> all the glyphs in the used font? the explanation in 4.6 of the ref.
> manual is not really telling me how the box height in the example comes
> about (i.e. what the mentioned `maximal height' actually is).

\setstrut: ht and dp according to settings of lineheight which relates
to the x height (font property)

> -- `\setcharstrut{0123456789}': the command seems to be completely
> undocumented (I could not find it in wiki and ref. manual), but it seems
> clear what it does. except what do you mean by "tight case" here?

set the strut to match the given set of characters

> -- why is it necessary to state `strut=no' to switch of the default on
> top of setting the strut explicitly?

just try it ... i assume you don't want too much depth

Hans

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