[NTG-context] Metapost and TikZ color code equivalent

[Fabrice Couvreur]

Hi Henri,
Why does the blue path not rotate 90 with the draw command but rotate with
the fill command ?

\startMPcode

  def match (expr alpha, pos) =
    fill unitsquare xscaled 4cm  yscaled 0.2cm rotated alpha shifted pos
    withcolor yellow ;
    fill origin -- (4cm,0) -- (4.1cm,-0.05cm) --  (0.1cm,-0.05cm) --
    cycle rotated alpha withcolor(.6yellow + black);
    draw origin -- (0,0.2cm) -- (4cm,0.2cm) -- (4cm,0) -- (4.1cm,-0.05cm)
    -- (0.1cm,-0.05cm) -- cycle rotated alpha withcolor blue;
     draw origin -- (0,0.2cm) -- (4cm,0.2cm) -- (4cm,0) -- (4.1cm,-0.05cm)
    -- (0.1cm,-0.05cm) -- cycle rotated alpha withcolor blue;
    draw fullcircle xscaled 0.50cm yscaled 0.44cm shifted (4.125cm,0.1cm)
    rotated alpha;
    draw fullcircle xscaled 0.50cm yscaled 0.44cm shifted (4.125cm,0.1cm)
    rotated alpha
    withshademethod "circular 1"
    withshadevector (0,1)
    withshadecolors (red,white);
    enddef;
  match(0,(0,0));
  match(90,(4.2cm,0));
  match(90,(0,0));
  match(0,(0,4.2cm));

\stopMPcode


Le sam. 15 févr. 2020 à 00:01, Fabrice Couvreur <fabrice1.couvreur at gmail.com>
a écrit :

> Hi,
> Hi,
> I have corrected for the dimensions of the ellipse but I cannot achieve
> the same effect for the red color.
> Thank you.
> Fabrice
> \startMPcode
>   def match (expr pos) =
>     fill unitsquare xscaled 4cm  yscaled 0.2cm shifted pos withcolor
> yellow;
>     fill origin -- (4cm,0) -- (4.1cm,-0.05cm) --  (0.1cm,-0.05cm) -- cycle
>  withcolor(.6yellow + black);
>     draw origin -- (0,0.2cm) -- (4cm,0.2cm) -- (4cm,0) -- (4.1cm,-0.05cm)
> -- (0.1cm,-0.05cm) -- cycle;
>     fill fullcircle xscaled 0.50cm yscaled 0.44cm shifted (4.125cm,0.1cm)
> withcolor red;
>     draw fullcircle xscaled 0.50cm yscaled 0.44cm shifted (4.125cm,0.1cm);
>     draw fullcircle xscaled 0.50cm yscaled 0.44cm shifted (4.125cm,0.1cm)
>          withshademethod "circular"
>          withshadevector (0,1)
>          withshadecolors (red,white)
>   enddef;
>   match((0,0));
>
> \stopMPcode
>
>
>
> Le ven. 14 févr. 2020 à 16:43, Fabrice L <fabrice.alpha at gmail.com> a
> écrit :
>
>> Hi,
>>
>> Le 13 févr. 2020 à 16:45, Fabrice Couvreur <fabrice1.couvreur at gmail.com>
>> a écrit :
>>
>>
>> How to have the color defined by {yellow!60!black} with Metapost ?
>>
>>
>> color MyColor ; MyColor := .6[yellow,black] ;
>>
>> See metafun manual, section 1.13.
>>
>> Thank you.
>> Fabrice
>>
>>
>> Fabrice (another one !).
>>
>>
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