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From: Hans Hagen <pragma@wxs.nl>
To: ntg-context@ntg.nl
Subject: Re: Anomaly in stretch framed text to width
Date: Wed, 09 Oct 2013 10:38:14 +0200	[thread overview]
Message-ID: <525515F6.7040001@wxs.nl> (raw)
In-Reply-To: <20131009141147.3660@binki>

On 10/9/2013 7:11 AM, hwitloc@gmail.com wrote:
>
> Wolfgang Schuster wrote:
>> .... snipped ..
>>
>> \starttext
>> \framed[width=40mm]{word}
>> \framed[width=40mm]{\stretched[features=none,width=\framedwidth]{word}}
>> \stoptext
>>
>
> I also appreciate the example provided by Wolfgang.  I have found an anomaly which produces incorrect results on my system.
>
> Versin:  mtx-context     | current version: 2013.09.03 16:23
>
>
> Not so minimal, minimal example.  I did a range of values for comparison.
> Problem is:
>     1. I expect a one character word to be centered.  Not necessary but I expected this, because all words >1 character do center alignment.
>
>     2. The letter 'w' for some reason binds to the next character and produces an incorrect result.
>
>     3. In the last table the letters 'db' seem to be stuck together when the word is seven characters or more.  This anomalous unsymmetric binding also occurs in the 2nd and 3rd tables, as well.

normally this goes unnoticed because we don't add that much stretch 
(there is a hyphenation point in between that needs a special treatment)

> \starttext
>
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{1}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{12}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{123}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{1234}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{12345}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{123456}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{1234567}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{12345678}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{123456789}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{1234567890}}
>
> \blank[big]
>
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{w}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wo}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wor}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{word}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordw}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordwo}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordwor}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordword}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordwordw}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wordwordwo}}
>
> \blank[big]
>
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{w}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wa}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{war}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{ward}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardw}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardwa}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardwar}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardward}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardwardw}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{wardwardwa}}
>
> \blank[big]
>
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{b}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{ba}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bar}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bard}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardb}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardba}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardbar}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardbard}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardbardb}}
>   \framed[width=45mm]{\stretched[features=none,width=\framedwidth]{bardbardba}}
>
> \stoptext
>
> Is this a caculation / rouding / logic error ?

more a limitation of disc nodes; i now handle some cases in a special 
way (will upload new beta later)

Hans

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      reply	other threads:[~2013-10-09  8:38 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-08 18:04 Pablo Rodriguez
2013-10-08 18:15 ` Wolfgang Schuster
2013-10-08 19:40   ` Pablo Rodriguez
2013-10-09  5:11   ` Anomaly in " hwitloc
2013-10-09  8:38     ` Hans Hagen [this message]

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