t=pi/6:pi/3:2*pi;
x=cos(t);
y=sin(t);

h=plot(0,0);
hold on
delete(h)

for i=1:6
	ra=sort(2*pi*rand(1,12));
	r=rand(1,12)/3+0.1;
	rx=r.*cos(ra)+x(i);
	ry=r.*sin(ra)+y(i);
	fill(rx,ry,'k')
end


% centres des cercles
tc=pi/2:2*pi/3:2*pi+pi/2;
xc=cos(tc);
yc=sin(tc);
fill(xc,yc,'w','edgecolor','w')
set(gcf,'color','w')

axis equal
axis off
hold off

