%@AUTEUR:Guillaume Connan
prologues:=2;

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);

%        T V I

% Déclarations des constantes %
numeric xmin, xmax, ymin, ymax, N;

ux:=4cm;
uy:=4cm;
xmin := -.5; xmax := 1.15;
ymin := -.15; ymax := 1.15;

% Définitions des axes et labels associés
vardef axes =
  drawarrow (ux*xmin,0) -- (ux*xmax,0) ; % axe des x
  drawarrow (0,uy*ymin) -- (0,uy*ymax) ; % axe des y
  label.lrt(btex $x$ etex,(xmax*ux,0)); % label de l'axe des x
  label.urt(btex $y$ etex,(0,ymax*uy)); % label de l'axe des y
enddef;


beginfig(1);
  axes; label.llft(btex $0$ etex,(-.02*ux,-.02*uy));

  draw(0,0)--(1.2*ux,1.2*uy) withcolor 0.55*white;

  draw(0,uy)--(ux,uy)--(ux,0) withcolor 0.45*white;

  draw(0,0.4*uy)..(0.3*ux,0.5*uy)..(0.6*ux,0.1*uy)..(ux,0.3*uy) withpen pencircle scaled 1.5bp withcolor bleu_m;

  draw(0,0.4*uy) withpen pencircle scaled 6bp;
  draw(ux,0.3*uy) withpen pencircle scaled 6bp;
  
  label.bot(btex $1$ etex,(ux,0));

  label.ulft(btex $1$ etex,(0,uy));
  
  label.ulft(btex $y=x$ etex,(1.15*ux,1.15*uy)) withcolor 0.55*white; 

endfig;
end