[NTG-context] Scale content to height of the font, measure font height

[NTG-context] Scale content to height of the font, measure font height

[Gerion Entrup]

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Hi,

I'd like to scale something (actually a symbol drawn in TikZ) to the exact 
high of the char 'M'. I found the scale environment for it but struggle to 
measure the correct font height. I found the "definemeasure/measure/measured" 
commands but they define a dimension and are not for doing measurements on 
rendered text. Is there a simple way to get the height a char as a dimension?

MWE:
```
\starttext
% Is it possible to replace 1cm with a common expression?
This is the letter M. \scale[height=1cm]{a} should have the exact same size as 
M.

This should also be true {\tfc with a bigger M. \scale[height=1cm]{a}}.
\stoptext
```

Best
Gerion


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___________________________________________________________________________________
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___________________________________________________________________________________

[NTG-context] Re: Scale content to height of the font, measure font height

[Hans Hagen]

On 6/10/2024 1:16 PM, Gerion Entrup wrote:
> Hi,
> 
> I'd like to scale something (actually a symbol drawn in TikZ) to the exact
> high of the char 'M'. I found the scale environment for it but struggle to
> measure the correct font height. I found the "definemeasure/measure/measured"
> commands but they define a dimension and are not for doing measurements on
> rendered text. Is there a simple way to get the height a char as a dimension?
> 
> MWE:
> ```
> \starttext
> % Is it possible to replace 1cm with a common expression?
> This is the letter M. \scale[height=1cm]{a} should have the exact same size as
> M.
> 
> This should also be true {\tfc with a bigger M. \scale[height=1cm]{a}}.
> \stoptext
\the\dimexpr\fontcharht\font`M+\fontchardp\font`M\relax

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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___________________________________________________________________________________

[NTG-context] Re: Scale content to height of the font, measure font height

[seyal zavira]

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Also you can use this:

assuming that you have a fixed size figure such as a pdf page:

\definesymbol[Bsymbol][{\scale[width=1.6ex]{\externalfigure[myfile.pdf][page=1]}}]
\define\mysym{\kern 0.2em \symbol[Bsymbol] \kern 0.3em}

\starttext
this is a sample\mysym text.
\tfa{this is a sample\mysym text.}
\stoptext

On Mon, Jun 10, 2024 at 7:18 AM Gerion Entrup <gerion.entrup@flump.de>
wrote:

> Hi,
>
> I'd like to scale something (actually a symbol drawn in TikZ) to the exact
> high of the char 'M'. I found the scale environment for it but struggle to
> measure the correct font height. I found the
> "definemeasure/measure/measured"
> commands but they define a dimension and are not for doing measurements on
> rendered text. Is there a simple way to get the height a char as a
> dimension?
>
> MWE:
> ```
> \starttext
> % Is it possible to replace 1cm with a common expression?
> This is the letter M. \scale[height=1cm]{a} should have the exact same
> size as
> M.
>
> This should also be true {\tfc with a bigger M. \scale[height=1cm]{a}}.
> \stoptext
> ```
>
> Best
> Gerion
>
>
> ___________________________________________________________________________________
> If your question is of interest to others as well, please add an entry to
> the Wiki!
>
> maillist : ntg-context@ntg.nl /
> https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
> webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
> archive  : https://github.com/contextgarden/context
> wiki     : https://wiki.contextgarden.net
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the Wiki!

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___________________________________________________________________________________

[NTG-context] Re: Scale content to height of the font, measure font height

[Wolfgang Schuster]

Gerion Entrup schrieb am 10.06.2024 um 13:16:
> Hi,
> 
> I'd like to scale something (actually a symbol drawn in TikZ) to the exact
> high of the char 'M'. I found the scale environment for it but struggle to
> measure the correct font height. I found the "definemeasure/measure/measured"
> commands but they define a dimension and are not for doing measurements on
> rendered text. Is there a simple way to get the height a char as a dimension?
> 
> MWE:
> ```
> \starttext
> % Is it possible to replace 1cm with a common expression?
> This is the letter M. \scale[height=1cm]{a} should have the exact same size as
> M.
> 
> This should also be true {\tfc with a bigger M. \scale[height=1cm]{a}}.
> \stoptext
> ```

\starttext
M\scale[height=\heightofstring{M}]{a}M
\stoptext

Wolfgang
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___________________________________________________________________________________

[NTG-context] Re: Scale content to height of the font, measure font height

[Gerion Entrup]

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Am Montag, 10. Juni 2024, 15:53:19 MESZ schrieb Wolfgang Schuster:
> Gerion Entrup schrieb am 10.06.2024 um 13:16:
> > Hi,
> > 
> > I'd like to scale something (actually a symbol drawn in TikZ) to the exact
> > high of the char 'M'. I found the scale environment for it but struggle to
> > measure the correct font height. I found the "definemeasure/measure/measured"
> > commands but they define a dimension and are not for doing measurements on
> > rendered text. Is there a simple way to get the height a char as a dimension?
> > 
> > MWE:
> > ```
> > \starttext
> > % Is it possible to replace 1cm with a common expression?
> > This is the letter M. \scale[height=1cm]{a} should have the exact same size as
> > M.
> > 
> > This should also be true {\tfc with a bigger M. \scale[height=1cm]{a}}.
> > \stoptext
> > ```
> 
> \starttext
> M\scale[height=\heightofstring{M}]{a}M
> \stoptext
> 
> Wolfgang
> 

Thank you all! Added to the wiki: https://wiki.contextgarden.net/Dimensions

Gerion

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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 / https://mailman.ntg.nl/mailman3/lists/ntg-context.ntg.nl
webpage  : https://www.pragma-ade.nl / https://context.aanhet.net (mirror)
archive  : https://github.com/contextgarden/context
wiki     : https://wiki.contextgarden.net
___________________________________________________________________________________