Re: Transparency (Metapost)

Re: Transparency (Metapost)

[Jeong Dal]

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Dear Fabrice,

I run your code using ConTeXt LMTX and got the figure.
(LuaMetaTeX 2.00, ConTeXt version: 2019.11.14.)
I don’t know why you have errors.

Here is the beginning of log file:

resolvers       | formats | executing runner 'run luametatex format': /Users/graph/ConTeXtLMTX/tex/texmf-osx-64/bin/luametatex --jobname="test" --fmt=/Users/graph/ConTeXtLMTX/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.fmt --lua=/Users/graph/ConTeXtLMTX/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/luametatex/cont-en.lui cont-yes.mkiv --c:autopdf --c:currentrun=1 --c:fulljobname="/Users/graph/Documents/TeXfiles/test.tex" --c:input="/Users/graph/Documents/TeXfiles/test.tex" --c:kindofrun=1 --c:maxnofruns=9 --c:purge --c:texmfbinpath="/Users/graph/ConTeXtLMTX/tex/texmf-osx-64/bin"
This is LuaMetaTeX, Version 2.00.0 
open source     > level 1, order 1, name 'cont-yes.mkiv'
system          > 
system          > ConTeXt  ver: 2019.11.14 17:47 MKIV beta  fmt: 2019.11.19  int: english/english
system          > 
system          > 'cont-new.mkiv’ loaded


Best regards,

Dalyoung


> 
> \starttext
> \startMPcode
>   defaultfont := "texgyrepagella-regular*default" ;
>   defaultscale :=0.8;
> 
>   color brown;
>   brown = (0.128,0.00,0.00);
> 
>   path twos, threes, sixes;
>   twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
>          shifted 42 left;
>   threes = fullcircle xscaled 4cm yscaled 2cm shifted 42 right;
>   sixes = buildcycle(twos, threes);
> 
>   fill twos   withcolor brown withtransparency(1,0.75);
>   fill threes withcolor yellow withtransparency(1,0.75);
>   fill sixes withcolor yellow + brown withtransparency(1,0.75);
> 
>   draw twos;
>   draw threes;
> 
>   label("...",(1.5cm,0));
>   label("...",(0,0));
>   label("...",(-1.5cm,0));
>   label.top("yeux marron",(-1.5cm,1.25cm));
>   label.top("cheveux blonds",(1.5cm,1.25cm));
> \stopMPcode
> \stoptext


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Re: Transparency (Metapost)

[Wolfgang Schuster]

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Fabrice Couvreur schrieb am 01.12.2019 um 21:56:
> Hi Hans,
> I updated lmtx, but your code does not compile except that the output 
> is a pdf file where it is written ERROR.

Can you clear the cache.

Wolfgang


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Re: Transparency (Metapost)

[Fabrice Couvreur]

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Hi Hans,
I updated lmtx, but your code does not compile except that the output is a
pdf file where it is written ERROR.
Fabrice

tex error       > tex error on line 1 in file ./blond.tex: ?


\font_helpers_low_level_define ...\scaledfontmode
                                                  \relax \ifcase
\scaledfont...
\font_helpers_trigger_define ..._identifier_class
                                                  \csname
\v_font_identifier...
\applyfontclassstrategies ...to_size \lastnamedcs
                                                  \else \expandafter
\font_h...
\font_helpers_synchronize_font ...classstrategies
                                                  \fi \setfalse
\c_font_auto...
\rm ->\ifmmode \mathrm \else \normalrm
                                       \fi
\font_basics_switch_style ...dcsname \lastnamedcs
                                                  \edef \fontstyle
{#1}\ifmm...
...
l.1 \starttext


 1 >>  \starttext
 2
 3     \startMPcode
 4         defaultfont  := "texgyrepagella-regular*default" ;
 5         defaultscale := 0.8 ;
 6
 7         definecolor [ name = "mp:red",   b = 1 ] ;
 8         definecolor [ name = "mp:green", y = 1 ] ;
 9
10         path twos, threes ;
11         twos   := fullcircle xscaled 4cm yscaled 2cm rotated 180 shifted
42

mtx-context     | fatal error: return code: 256

Le dim. 1 déc. 2019 à 13:09, Hans Hagen <j.hagen@xs4all.nl> a écrit :

> On 12/1/2019 11:32 AM, Fabrice Couvreur wrote:
> > Hello
> > Thank you for your suggestion. However, it works with context and not
> > with lmtx.
> > Fabrice
> >
> > \starttext
> > \startMPcode
> >     defaultfont := "texgyrepagella-regular*default" ;
> >     defaultscale :=0.8;
> >
> >     color brown;
> >     brown = (0.128,0.00,0.00);
> >
> >     path twos, threes, sixes;
> >     twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
> >            shifted 42 left;
> >     threes = fullcircle xscaled 4cm yscaled 2cm shifted 42 right;
> >     sixes = buildcycle(twos, threes);
> >
> >     fill twos   withcolor brown withtransparency(1,0.75);
> >     fill threes withcolor yellow withtransparency(1,0.75);
> >     fill sixes withcolor yellow + brown withtransparency(1,0.75);
> >
> >     draw twos;
> >     draw threes;
> >
> >     label("...",(1.5cm,0));
> >     label("...",(0,0));
> >     label("...",(-1.5cm,0));
> >     label.top("yeux marron",(-1.5cm,1.25cm));
> >     label.top("cheveux blonds",(1.5cm,1.25cm));
> > \stopMPcode
> > \stoptext
> >
> > tex error       > tex error on line 1 in file ./blond.tex: ?
> Looks ok here ... but isn't the transparacy used instead of the sizes?
> Anyway, you can use named colors
>
> \starttext
>
> \startMPcode
>     defaultfont  := "texgyrepagella-regular*default" ;
>     defaultscale := 0.8 ;
>
>     definecolor [ name = "mp:red",   b = 1 ] ;
>     definecolor [ name = "mp:green", y = 1 ] ;
>
>     path twos, threes ;
>     twos   := fullcircle xscaled 4cm yscaled 2cm rotated 180 shifted 42
> left ;
>     threes := fullcircle xscaled 4cm yscaled 2cm             shifted 42
> right ;
>
>     fill twos   withcolor "mp:red"   withtransparency(1,0.5) ;
>     fill threes withcolor "mp:green" withtransparency(1,0.5) ;
>
>     draw twos ;
>     draw threes ;
>
>     label("...",( 1.5cm,0));
>     label("...",( 0,    0));
>     label("...",(-1.5cm,0));
>     label.top("\strut yeux marron",   (-1.5cm,1.25cm));
>     label.top("\strut cheveux blonds",( 1.5cm,1.25cm));
> \stopMPcode
>
> \stoptext
>
> (you cannot overload colors at the tex level in mp but use them in order
> to be consistent)
>
> Hans
>
> -----------------------------------------------------------------
>                                            Hans Hagen | PRAGMA ADE
>                Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>         tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -----------------------------------------------------------------
>
> ___________________________________________________________________________________
> 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://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>

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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
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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Transparency (Metapost)

[Hans Hagen]

On 12/1/2019 11:32 AM, Fabrice Couvreur wrote:
> Hello
> Thank you for your suggestion. However, it works with context and not 
> with lmtx.
> Fabrice
> 
> \starttext
> \startMPcode
>     defaultfont := "texgyrepagella-regular*default" ;
>     defaultscale :=0.8;
> 
>     color brown;
>     brown = (0.128,0.00,0.00);
> 
>     path twos, threes, sixes;
>     twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
>            shifted 42 left;
>     threes = fullcircle xscaled 4cm yscaled 2cm shifted 42 right;
>     sixes = buildcycle(twos, threes);
> 
>     fill twos   withcolor brown withtransparency(1,0.75);
>     fill threes withcolor yellow withtransparency(1,0.75);
>     fill sixes withcolor yellow + brown withtransparency(1,0.75);
> 
>     draw twos;
>     draw threes;
> 
>     label("...",(1.5cm,0));
>     label("...",(0,0));
>     label("...",(-1.5cm,0));
>     label.top("yeux marron",(-1.5cm,1.25cm));
>     label.top("cheveux blonds",(1.5cm,1.25cm));
> \stopMPcode
> \stoptext
> 
> tex error       > tex error on line 1 in file ./blond.tex: ?
Looks ok here ... but isn't the transparacy used instead of the sizes? 
Anyway, you can use named colors

\starttext

\startMPcode
    defaultfont  := "texgyrepagella-regular*default" ;
    defaultscale := 0.8 ;

    definecolor [ name = "mp:red",   b = 1 ] ;
    definecolor [ name = "mp:green", y = 1 ] ;

    path twos, threes ;
    twos   := fullcircle xscaled 4cm yscaled 2cm rotated 180 shifted 42 
left ;
    threes := fullcircle xscaled 4cm yscaled 2cm             shifted 42 
right ;

    fill twos   withcolor "mp:red"   withtransparency(1,0.5) ;
    fill threes withcolor "mp:green" withtransparency(1,0.5) ;

    draw twos ;
    draw threes ;

    label("...",( 1.5cm,0));
    label("...",( 0,    0));
    label("...",(-1.5cm,0));
    label.top("\strut yeux marron",   (-1.5cm,1.25cm));
    label.top("\strut cheveux blonds",( 1.5cm,1.25cm));
\stopMPcode

\stoptext

(you cannot overload colors at the tex level in mp but use them in order 
to be consistent)

Hans

-----------------------------------------------------------------
                                           Hans Hagen | PRAGMA ADE
               Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
        tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-----------------------------------------------------------------
___________________________________________________________________________________
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://context.aanhet.net
archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Transparency (Metapost)

[Fabrice Couvreur]

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Hello
Thank you for your suggestion. However, it works with context and not with
lmtx.
Fabrice

\starttext
\startMPcode
   defaultfont := "texgyrepagella-regular*default" ;
   defaultscale :=0.8;

   color brown;
   brown = (0.128,0.00,0.00);

   path twos, threes, sixes;
   twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
          shifted 42 left;
   threes = fullcircle xscaled 4cm yscaled 2cm shifted 42 right;
   sixes = buildcycle(twos, threes);

   fill twos   withcolor brown withtransparency(1,0.75);
   fill threes withcolor yellow withtransparency(1,0.75);
   fill sixes withcolor yellow + brown withtransparency(1,0.75);

   draw twos;
   draw threes;

   label("...",(1.5cm,0));
   label("...",(0,0));
   label("...",(-1.5cm,0));
   label.top("yeux marron",(-1.5cm,1.25cm));
   label.top("cheveux blonds",(1.5cm,1.25cm));
\stopMPcode
\stoptext

tex error       > tex error on line 1 in file ./blond.tex: ?


\font_helpers_low_level_define ...\scaledfontmode
                                                  \relax \ifcase
\scaledfont...
\font_helpers_trigger_define ..._identifier_class
                                                  \csname
\v_font_identifier...
\applyfontclassstrategies ...to_size \lastnamedcs
                                                  \else \expandafter
\font_h...
\font_helpers_synchronize_font ...classstrategies
                                                  \fi \setfalse
\c_font_auto...
\rm ->\ifmmode \mathrm \else \normalrm
                                       \fi
\font_basics_switch_style ...dcsname \lastnamedcs
                                                  \edef \fontstyle
{#1}\ifmm...
...
l.1 \starttext


 1 >>  \starttext
 2     \startMPcode
 3        defaultfont := "texgyrepagella-regular*default" ;
 4        defaultscale :=0.8;
 5
 6        color brown;
 7        brown = (0.128,0.00,0.00);
 8
 9        path twos, threes, sixes;
10        twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
11               shifted 42 left;

mtx-context     | fatal error: return code: 256


Le dim. 1 déc. 2019 à 00:34, Jeong Dal <haksan@me.com> a écrit :

> \
>
>
> Dear Fabrice,
>
> I got color and transparency using the following command in LMTX(metafun).
>
> fill p withcolor yellow withtransparency(1, .75);
>
> I hope that it helps.
>
> Best regards,
>
> Dalyoung
>
> ___________________________________________________________________________________
> 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://context.aanhet.net
> archive  : https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
>
> ___________________________________________________________________________________
>

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___________________________________________________________________________________
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wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Transparency (Metapost)

[Jeong Dal]

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> \

Dear Fabrice,

I got color and transparency using the following command in LMTX(metafun).

fill p withcolor yellow withtransparency(1, .75);

I hope that it helps.

Best regards,

Dalyoung

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___________________________________________________________________________________

Transparency (Metapost)

[Fabrice Couvreur]

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Hello,
I have a little trouble with the management of transparency : the colors
are not respected.
Thank you.
Fabrice

\starttext
\startMPcode
   defaultfont := "texgyrepagella-regular*default" ;
   defaultscale :=0.8;

   color brown;
   brown = (0.165,0.42,0.42);

   path twos, threes;
   twos = fullcircle xscaled 4cm yscaled 2cm rotated 180
          shifted 42 left;
   threes = fullcircle xscaled 4cm yscaled 2cm shifted 42 right;

   fill twos   withcolor transparent(1,0.4,brown);
   fill threes withcolor transparent(1,0.4,yellow);

   draw twos;
   draw threes;

   label("...",(1.5cm,0));
   label("...",(0,0));
   label("...",(-1.5cm,0));
   label.top("yeux marron",(-1.5cm,1.25cm));
   label.top("cheveux blonds",(1.5cm,1.25cm));
\stopMPcode
\stoptext

[image: blond.jpg]

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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
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archive  : https://bitbucket.org/phg/context-mirror/commits/
wiki     : http://contextgarden.net
___________________________________________________________________________________