Re: square in Cambria font

[Sietse Brouwer <sbbrouwer@gmail.com>]

> Of the three fonts I tried (cambria, lmodern,
> lucidaot) it seems lmodern is the only one
> doing it right.

Depends on what is required to 'do it right' --- the Unicode reference
doesn't mention any mathematical use for U+25A1 white square, so I'm
not sure that "must match squared plus glyph" is a requirement.
Perhaps the creators of Cambria expected the glyph to be used for
itemizations, or footnote marks.

Out of curiosity: what are you using the square for / what does it
stand for, that makes matching squared plus so important to you? There
might even exist some other glyph that is semantically more suitable.

Cheers,
Sietse

On 1 May 2013 10:05, Meer, H. van der <H.vanderMeer@uva.nl> wrote:
> Thanks, this indeed produces a square more akin to boxtimes in Cambria. But the situation seems even worse than I thought. Under the 40pt fontsize it is apparent that lucidaot's square has a thinner outline then boxtimes. Of the three fonts I tried (cambria, lmodern, lucidaot) it seems lmodern is the only one doing it right.
>
> Hans van der Meer
>
>
>
> On 1 May 2013, at 12:17 AM, Sietse Brouwer <sbbrouwer@gmail.com>
>  wrote:
>
>> Hello Hans,
>>
>> The bad news: I think it's the font. The good news: here comes
>> MetaPost to the rescue!
>>
>> I don't have Cambria, so I plucked a cambria.ttf file off the Internet
>> somewhere, which contains both Cambria and Cambria Math. I don't know
>> whether you have the same file/version, so YMMV, but it does exhibit
>> the problem you describe.
>>
>> According to the lovely and free FontForge,
>> * the WHITE SQUARE glyph (U+25A1) is 1060 units high
>> * the SQUARED PLUS glyph (U+229E) is 1630 units high (of which 230
>> below the baseline).
>>
>> This is in Cambria Math — Cambria does does not have either of these
>> glyphs. I suspect the square size is a design decision: that the
>> designers decided they wanted the white square to match the letters
>> rather than the 'squared *' operators.
>>
>> Anyway, here's a very close MetaPost approximation of the 'squared
>> plus' square, made by looking in with FontForge and copying the glyph
>> dimensions. (And then tweaking them because some things still didn't
>> look right; didn't manage to fix everything, alas.) It scales with the
>> font size.
>>
>> Cheers,
>> Sietse
>>
>> \setuppapersize[A7][A7]
>> \setuppagenumber[state=stop]
>> \setupbodyfont[cambria,40pt]
>>
>> \showframe
>> \showgrid
>>
>> \startuseMPgraphic{square}
>>    numeric u, strokewd, strokeht, sqwd, sqht;
>>    u        := BodyFontSize / 2083;
>>    strokewd := 128u;
>>    strokeht := 123u;
>>    sqwd     := 1506u;
>>    sqht     := 1533u;
>>    offset   := 200u;
>>    pickup pensquare xscaled strokewd yscaled strokeht;
>>    draw unitsquare xscaled sqwd yscaled sqht;
>>
>>    setbounds currentpicture to
>>        boundingbox currentpicture
>>        leftenlarged offset rightenlarged offset;
>> \stopuseMPgraphic
>>
>> \def\mysquare{%
>>    \lower \dimexpr \bodyfontsize / 2083 * 234
>> \relax\hbox{\useMPgraphic{square}}%
>> }
>>
>> %%%% try it out %%%%
>>
>> \starttext
>>
>> $\square+\mysquare\boxplus$ \crlf
>> $\mysquare\boxplus$
>>
>> \page[yes]
>>
>> $+ \ruledhbox{\boxplus}$  \crlf
>> $+ \ruledhbox{\mysquare}$ \crlf
>> $\ruledhbox{\boxplus}$  \crlf
>> $\ruledhbox{\mysquare}$
>>
>> \stoptext
>> ___________________________________________________________________________________
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>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to the Wiki!
>
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
> webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
> archive  : http://foundry.supelec.fr/projects/contextrev/
> wiki     : http://contextgarden.net
> ___________________________________________________________________________________
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
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