From: Hans Hagen <j.hagen@xs4all.nl>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>,
Wolfgang Schuster <wolfgang.schuster.lists@gmail.com>,
Pablo Rodriguez <oinos@gmx.es>
Subject: Re: (bug?) wrong interline in \placelist[alternative=d] with Pagella italics
Date: Mon, 16 Mar 2020 14:35:07 +0100 [thread overview]
Message-ID: <c93ed79c-733d-cfe8-9551-976ccd77d612@xs4all.nl> (raw)
In-Reply-To: <c000938d-3078-dcd6-0094-43d3efb422d0@gmail.com>
On 3/16/2020 1:27 PM, Wolfgang Schuster wrote:
> Pablo Rodriguez schrieb am 16.03.2020 um 10:01:
>> On 3/15/20 10:56 PM, Wolfgang Schuster wrote:
>>> Pablo Rodriguez schrieb am 15.03.2020 um 20:32:
>>>> [...]
>>>> Everthing is fine when italic fonts aren’t used.
>>>
>>> It can be fixed with a strut option for lists, e.g.
>>> \setuplist[strut=no]. The problem in this case is that the ex-height for
>>> the italic font is larger than the ex-height for the upright font which
>>> pushes the text down because add a strut at the begin and end of the
>>> entries.
>>
>> Many thanks for your reply, Wolfgang.
>>
>> I don’t get \setuplist[strut=no] working in the minimal sample I sent
>> yesterday.
>
> The key isn't supported yet but it could help to avoid the spacing problem.
>
>>> Below is a minimal example of the problem, the \setstrut setting changes
>>> the height of the strut for the italic font.
>>
>> I must admit that I don’t understand how to handle struts (I’m not sure
>> I understand what they actually are.)
>
> The simple answer is that a strut is a invisible vertical line with the
> height and depth of a line. When you look at the example below you can
> see the text in the first box touches the top and bottom boundaries.
>
> When we add a strut at the begin and end of the text we ensure the last
> line has the depth of a normal line and the first line gets the complete
> height of a line.
>
> %%%% begin example
> \starttext
>
> \ruledvbox{\samplefile{weisman}}
>
> \blank
>
> \ruledvbox{\begstrut\samplefile{weisman}\endstrut}
>
> \stoptext
> %%%% end example
>
>>> Most fonts (I checked only a small number) don't have such a big
>>> difference between the ex-height of the upright and italic styles which
>>> makes it hard to notice the problem.
>>
>> Yesterday I realized that Pagella was an extreme case, because I tried
>> to report this issue before, but Latin Modern didn’t show the issue (so
>> I thought I was doing something wrong).
>
> Yes, pagella is a extreme case but when you use bold text the vertical
> spacing is also messed up. You can avoid this when you use a fixed
> lineheight (e.g. \setupinterlinespace[line=14pt]) because the default
> distance is font dependant (default: 2.8 * ex-height).
or one can play with these parameters, that default to:
\setupinterlinespace
[height=.72,
depth=.28]
(maybe we should have recomended values for specific fonts)
Hans
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next prev parent reply other threads:[~2020-03-16 13:35 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-15 19:32 Pablo Rodriguez
2020-03-15 21:56 ` Wolfgang Schuster
2020-03-16 9:01 ` Pablo Rodriguez
2020-03-16 12:27 ` Wolfgang Schuster
2020-03-16 13:35 ` Hans Hagen [this message]
2020-03-16 14:42 ` Henning Hraban Ramm
2020-03-16 17:01 ` Wolfgang Schuster
2020-03-16 17:42 ` Hans Hagen
2020-03-16 18:00 ` Wolfgang Schuster
2020-03-16 20:04 ` Pablo Rodriguez
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