%@AUTEUR:Guillaume Connan
prologues:=2;

verbatimtex
%&latex
\documentclass{article}
\begin{document}
etex

input courbes;
input geo;

color vert_e, turquoise, orange, vert_fonce, rose, vert_mer, bleu_ciel, or, rouge_v,bleu_m,bleu,bleu_f;
vert_e:=(0,0.790002,0.340007);
turquoise:=(0.250999,0.878399,0.815699);
orange:=(0.589999,0.269997,0.080004);
vert_fonce:=(0,1.4*0.392193,0);
rose:=(1.0, 0.752907, 0.796106);
bleu_ciel:=(1.2*0.529405,1.2*0.807794,1);%.2*0.921598);
or:=(1,0.843104,0);
rouge_v:=(0.829997,0.099994,0.119999);
bleu_m:=(0.7*0.529405,0.7*0.807794,0.7);%*0.921598);
bleu_f:=(0.211762,0.3231176,0.3686392);
bleu:=(0.529405,0.807794,1);


beginfig(1);
  path a,b,aa,ab;
  a=fullcircle scaled 2cm;
  b=a shifted (0,1cm);
  aa=halfcircle scaled 2cm;
  ab=buildcycle(aa,b);
  picture pa,pb,px;
  pa=thelabel(btex $B\setminus A$ etex, (0,-.5cm));
  pb=thelabel(btex $A\cap B$ etex, (0,0.5cm));
  px=thelabel(btex $A\setminus B$ etex, (0,1.5cm));
  
  fill a withcolor .8white;
  fill b withcolor bleu_m;
  fill ab withcolor bleu_ciel;
  unfill bbox pa;
  draw pa;
  unfill bbox pb;
  draw pb;
  unfill bbox px;
  draw px;
endfig;
end