Metapost and MPlib

Metapost and MPlib

[batela]

Dear Sirs

I would like to include some macros from 
http://melusine.eu.org/syracuse/poulecl/macros in my luatex documents. 
Every time i try to include a new example (from papier.mp, par example) 
i found this old error message:;  texnum.mp Unable to make mpx file.

init_numbers(btex $-$ etex,  btex$$etex, btex ${\times}$10etex

in the google i found a old solution for this kind of error, but for 
LaTeX not for mplib or LuaTeX.

Is there a fresh solution for that?

Syracuse provide to us a nice solutions for writing  maths and physics 
with metapost.

Thanks a lot.

Jorge




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Re: Metapost and MPlib

[Taco Hoekwater]

batela wrote:
> Dear Sirs
> 
> I would like to include some macros from
> http://melusine.eu.org/syracuse/poulecl/macros in my luatex documents.
> Every time i try to include a new example (from papier.mp, par example)
> i found this old error message:;  texnum.mp Unable to make mpx file.
> 
> init_numbers(btex $-$ etex,  btex$$etex, btex ${\times}$10etex

The mplib core (and luatex, by extension) does not have support
for btex ... etex constructs, but I think there is special code
in context mkiv to handle such cases?

Best wishes,
Taco
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Re: Metapost and MPlib

[batela]

Em 03/11/2009, às 8:43, Taco Hoekwater escreveu:

>
>
> batela wrote:
>> Dear Sirs
>>
>> I would like to include some macros from
>> http://melusine.eu.org/syracuse/poulecl/macros in my luatex documents.
>> Every time i try to include a new example (from papier.mp, par 
>> example)
>> i found this old error message:;  texnum.mp Unable to make mpx file.
>>
>> init_numbers(btex $-$ etex,  btex$$etex, btex ${\times}$10etex
>
> The mplib core (and luatex, by extension) does not have support
> for btex ... etex constructs, but I think there is special code
> in context mkiv to handle such cases?


thanks, but i'm afraid that I'm not able to find the solution. Perhaps 
some day anybody will be able to play with syrasuse macros in luatex 
documents.


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Re: Metapost and MPlib

[Hans Hagen]

batela wrote:
> 
> Em 03/11/2009, às 8:43, Taco Hoekwater escreveu:
> 
>>
>>
>> batela wrote:
>>> Dear Sirs
>>>
>>> I would like to include some macros from
>>> http://melusine.eu.org/syracuse/poulecl/macros in my luatex documents.
>>> Every time i try to include a new example (from papier.mp, par example)
>>> i found this old error message:;  texnum.mp Unable to make mpx file.
>>>
>>> init_numbers(btex $-$ etex,  btex$$etex, btex ${\times}$10etex
>>
>> The mplib core (and luatex, by extension) does not have support
>> for btex ... etex constructs, but I think there is special code
>> in context mkiv to handle such cases?
> 
> 
> thanks, but i'm afraid that I'm not able to find the solution. Perhaps 
> some day anybody will be able to play with syrasuse macros in luatex 
> documents.

as the whole site is a mix of french and latex and i'm not fluent in 
either of them ... can you give a small example?

what happens if you don't load the mpnum package (or whatever it's called)


Hans


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Re: Metapost and MPlib

[batela]

Em 03/11/2009, às 6:24, Hans Hagen escreveu:

> batela wrote:
>> Em 03/11/2009, às 8:43, Taco Hoekwater escreveu:
>>>
>>>
>>> batela wrote:
>>>> Dear Sirs
>>>>
>>>> I would like to include some macros from
>>>> http://melusine.eu.org/syracuse/poulecl/macros in my luatex 
>>>> documents.
>>>> Every time i try to include a new example (from papier.mp, par 
>>>> example)
>>>> i found this old error message:;  texnum.mp Unable to make mpx file.
>>>>
>>>> init_numbers(btex $-$ etex,  btex$$etex, btex ${\times}$10etex
>>>
>>> The mplib core (and luatex, by extension) does not have support
>>> for btex ... etex constructs, but I think there is special code
>>> in context mkiv to handle such cases?
>> thanks, but i'm afraid that I'm not able to find the solution. 
>> Perhaps some day anybody will be able to play with syrasuse macros in 
>> luatex documents.
>
> as the whole site is a mix of french and latex and i'm not fluent in 
> either of them ... can you give a small example?
>
> what happens if you don't load the mpnum package (or whatever it's 
> called)


In the file papiers2.mp I have  deactivated  input format  (changed to 
%input format)

In the modules donymodule.mp and geometriesyr16.mp I changed all the 
btex   something etex constructs to " something ".

In the modules papiers2.mp and donymodule.mp I have deactivated the 
init_numbers function (init_numbers changed to %init_numbers )

Now all seems to work.

thanks

Jorge

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Re: Metapost and MPlib

[batela]

[-- Attachment #1: Type: text/plain, Size: 205 bytes --]

Another incompatibility between metapost and mkiv.

I try to run this code but i found  a error with some garbage.


Please try to run the file in attach. The error coming from the  
curvelabel function.


[-- Attachment #2: teste2.tex --]
[-- Type: application/x-tex, Size: 1378 bytes --]

[-- Attachment #3: Type: text/plain, Size: 486 bytes --]

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Re: Metapost and MPlib

[Aditya Mahajan]

[-- Attachment #1: Type: TEXT/PLAIN, Size: 319 bytes --]

On Wed, 4 Nov 2009, batela wrote:

> Another incompatibility between metapost and mkiv.
>
> I try to run this code but i found  a error with some garbage.
>
> Please try to run the file in attach. The error coming from the  curvelabel 
> function.

* Change # to \#.
* Don't redefine pt!

See the attached file.

Aditya

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: Type: TEXT/x-tex; name=teste2.tex, Size: 1558 bytes --]


\starttext


\startMPcode

path Cb[];

vardef courbe[](expr a,b,nb)(text texte)=
 path $;
 for i:=0 upto nb :
 x@[i]:=(a+i*(b-a)/nb);
 x:=x@[i];
 y@[i]:=texte;
 endfor ;
 Cb@:=(x@.0*x.u,y@.0*y.u)
 for i:=1 upto nb :
   ..(x@[i]*x.u,y@[i]*y.u)
 endfor;
 Cb@:=Cb@ shifted (z.origine*cm);
 $=Cb@;
$
enddef;

vardef cadre(expr q,r)=
  z.so=q;
  z.ne=r;
  path limite;
  limite:=z.so*cm--(x.ne*cm,y.so*cm)--z.ne*cm--(x.so*cm,y.ne*cm)--cycle;
  extra_endfig := "clip currentpicture to limite;" & extra_endfig;
enddef;
vardef origine(expr p)=
  x.origine=xpart(p);
  y.origine=ypart(p);
enddef;
vardef unites(expr q,r)=
  x.u:=q*cm;
  y.u:=r*cm;
enddef;


vardef depart(expr q,r,p,s,t)=
  cadre(q,r);
  origine(p);
  unites(s,t);
enddef;

vardef origine(expr p)=
  x.origine=xpart(p);
  y.origine=ypart(p);
enddef;

vardef unites(expr q,r)=
  x.u:=q*cm;
  y.u:=r*cm;
enddef;

vardef curvelabel@\#(expr a)(suffix pos)=
  save se;
  picture se;
  numeric t;
%show a;
  pair pp,tangent;
  if str pos ="" :
    t:=0.5*length Cb@\#
  else :
    t:=pos*length Cb@\#;
%show t;
  fi;
  pp:=point t of Cb@\#;
  tangent:=unitvector(direction t of Cb@\#);
  se=image(
    label(a rotated angle(tangent), pp+2mm*(tangent rotated 90));
    );
  se
enddef;


depart((-3,-3.5),(2.5,3.5),(0,0),2,2);
draw courbe1(-1,1,100,x*x) withcolor blue;
draw curvelabel1(btex $x^2$ etex, 0.9);

\stopMPcode


\stoptext

[-- Attachment #3: Type: text/plain, Size: 486 bytes --]

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