Re: [NTG-context] I (metapost) can't handle numbers bigger than 32767.99998

2019-07-05 Thread Zhichu
Hi Hans,

I simply put the unicode character there and everything works pretty well.

I was using only 5 Chinese characters in a document: 中國科學院, which means Chinese 
Academy of Sciences. Looked up their unicode number:

for c in u'中國科學院': print(ord(c))
20013
22283
31185
23416
38498

and draw every glyph carefully in a metapost file "cas-chars.mp":

beginglyph(20013,1000,1000,0);
  % a lot of fillings and drawingsendglyph;

then call them in a test file:

\definemetafont[cas-logo][cas-chars.mp]
\startTEXpage
\definefont[cas][cas@cas-logo]
\cas 中國科學院\stopTEXpage

If I remove the beginglyph(38498,1000,1000,0) part in the mp file and “\cas 
中國科學” will generate the correct output. or if I change 
beginglyph(38498,1000,1000,0) to  beginglyph(32767,1000,1000,0) and “\cas 
中國科學\char"7FFF” also gives the right output.

I'm looking forward to “some” module :-)
--
From:Hans Hagen 
Send Time:2019 Jul. 5 (Fri.) 17:03
To:陈之初 ; mailing list for ConTeXt users 

Subject:Re: [NTG-context] I (metapost) can't handle numbers bigger than 
32767.8

On 7/5/2019 8:32 AM, Zhichu wrote:
> Hi everyone,
> 
> I was using metapost to generate some symbols, as in 
> "tex/texmf-context/metapost/context/fonts/mpiv/demo-symbols.tex"

How do you use these symbols in a document? Do you call them up by 
number somehow? Using some glyph interface doesn't make much sense I 
think, as the font stuff comes from mf which is 8 bit. So, these 
character numbers (and simensions) are not really saying much, other 
than that they're properties of a figure.

(In context lmtx there will likely be some module for mp fonts. We can 
already do a lot but there is some more potential.)

Hans


> Occasionally, I want to customize a glyph whose charcode is a little large, 
> say the character " 
> 院":
> 
> ~~~IPython
> In [1]: for c in u'院': print(ord(c))
> 38498
> 
> 
> so I wrote:
> 
> beginglyph(38498,2,4,0) ; % high voltage
>  interim ahlength := 1 ;
>  drawarrow (1,4) -- (0,2) -- (2,3) -- (1,0) withcolor darkred ;
> endglyph ;
> 
> 
> and I got:
> 
> ! Enormous number has been reduced.
> l.60 beginzhglyph(38498
> );
> I can't handle numbers bigger than 32767.8;
> so I've changed your constant to that maximum amount.
> 
> 
> So charcode is a 15-bit integer?
> 
> Currently, I use `beginglyph(32767,2,4,0) ;` and call it with \char"7FFF. Not 
> an elegant way I think.
> 
> Is there a fix? I checked the metapost manual and found that charcode is only 
> used to set the filename to something like %{jobname}.%{charcode} I can't see 
> why there's a limit for charcode.
> 
> 
> 
> 
> 
> 
> ___
> 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
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> 


-- 

-
   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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Re: [NTG-context] I (metapost) can't handle numbers bigger than 32767.99998

2019-07-05 Thread Hans Hagen

On 7/5/2019 8:32 AM, Zhichu wrote:

Hi everyone,

I was using metapost to generate some symbols, as in 
"tex/texmf-context/metapost/context/fonts/mpiv/demo-symbols.tex"


How do you use these symbols in a document? Do you call them up by 
number somehow? Using some glyph interface doesn't make much sense I 
think, as the font stuff comes from mf which is 8 bit. So, these 
character numbers (and simensions) are not really saying much, other 
than that they're properties of a figure.


(In context lmtx there will likely be some module for mp fonts. We can 
already do a lot but there is some more potential.)


Hans


Occasionally, I want to customize a glyph whose charcode is a little large, say the character " 
院":


~~~IPython
In [1]: for c in u'院': print(ord(c))
38498


so I wrote:

beginglyph(38498,2,4,0) ; % high voltage
 interim ahlength := 1 ;
 drawarrow (1,4) -- (0,2) -- (2,3) -- (1,0) withcolor darkred ;
endglyph ;


and I got:

! Enormous number has been reduced.
l.60 beginzhglyph(38498
);
I can't handle numbers bigger than 32767.8;
so I've changed your constant to that maximum amount.


So charcode is a 15-bit integer?

Currently, I use `beginglyph(32767,2,4,0) ;` and call it with \char"7FFF. Not 
an elegant way I think.

Is there a fix? I checked the metapost manual and found that charcode is only 
used to set the filename to something like %{jobname}.%{charcode} I can't see 
why there's a limit for charcode.






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--

-
  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] I (metapost) can't handle numbers bigger than 32767.99998

2019-07-05 Thread Zhichu
Hi everyone,

I was using metapost to generate some symbols, as in 
"tex/texmf-context/metapost/context/fonts/mpiv/demo-symbols.tex"

Occasionally, I want to customize a glyph whose charcode is a little large, say 
the character "院":

~~~IPython
In [1]: for c in u'院': print(ord(c))
38498


so I wrote:

beginglyph(38498,2,4,0) ; % high voltage
interim ahlength := 1 ;
drawarrow (1,4) -- (0,2) -- (2,3) -- (1,0) withcolor darkred ;
endglyph ;


and I got:

! Enormous number has been reduced.
l.60 beginzhglyph(38498
);
I can't handle numbers bigger than 32767.8;
so I've changed your constant to that maximum amount.


So charcode is a 15-bit integer?

Currently, I use `beginglyph(32767,2,4,0) ;` and call it with \char"7FFF. Not 
an elegant way I think.

Is there a fix? I checked the metapost manual and found that charcode is only 
used to set the filename to something like %{jobname}.%{charcode} I can't see 
why there's a limit for charcode.





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