i Henri, Thank you for your answer. The idea is to make the graph as an attachment. I converted to Metapost but the road is still long! The code is from percusse on StackExchange. As you can see, there is a problem with the ellipse. How do I fix this ? Thank you Fabrice \usemodule[tikz] \starttext \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 0.25cm yscaled 0.22cm shifted (4.125cm,0.1cm) withcolor red; draw fullcircle xscaled 0.25cm yscaled 0.22cm shifted (4.125cm,0.1cm) withshademethod "circular" withshadevector (0,1) withshadecolors (red,white) enddef; match((0,0)); \stopMPcode \starttikzpicture \define[2]\allumette{ \fill [yellow] (#1,#2) rectangle (#1+4,#2+0.2); \fill [yellow!60!black] (#1,#2) -- ++(4,0)-- ++(0.1,-0.05) -- ++(-4,0) -- ++(-0.1,0.05); \draw (#1,#2) -- ++(0,0.2) -- ++(4,0) -- ++(0,-0.2) -- ++(0.1,-0.05) -- ++(-4,0) -- ++(-0.1,0.05); \shade[ball color=red] (#1+4,#2+0.1) ellipse (0.25cm and 0.22cm); \draw (#1+4,#2+0.1) ellipse (0.25cm and 0.22cm); } \allumette{0.1}{0.2} \filldraw[orange,scale=0.5,shift={(8.2,1.2)}] (0,0) .. controls (-1.5,1.25) and (.5,2) .. (-.2,4) .. controls (1,2.5) and (1,.5) .. (0,0); \stoptikzpicture \stoptext Le ven. 14 févr. 2020 à 02:49, Henri Menke a écrit :

On 2/14/20 10:45 AM, Fabrice Couvreur wrote:

...

Hi, How to have the color defined by {yellow!60!black} with Metapost ?

\usemodule[tikz] \starttext \startMPcode fill fullsquare scaled 1cm withcolor (.6yellow + black) ; \stopMPcode

\starttikzpicture \fill[yellow!60!black] (0,0) rectangle (1,1); \stoptikzpicture \stoptext

...

Thank you. Fabrice

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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 a écrit :

Hi,

Le 13 févr. 2020 à 16:45, Fabrice Couvreur 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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On 15-02-2020 12:25, Fabrice Couvreur wrote:

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

Why not draw the match as a picture first, then rotate and shift that picture? Also, if you use a local scale unit, it will be easier to stach the matches together by merely applying a factor in match units. .F