% 1. Definition of characteristic points (Interpolation points) \figinit{pt} \figpt 1:(0, 30)\figpt 2:(0, -30) \figpt 10:(-50, 50)\figpt 11:(-50,-50)\figpt 12:(-90,0) \figpt 20:(50, 60)\figpt 21:(50,-60)\figpt 22:(90,0) % 2. Creation of the graphical file \figdrawbegin{} \figset curve(roundness=0.23) % More roundness \figset(fillmode=yes,color=0.5) \figdrawcurve[11,2,1,10]\figdrawcurve[20,1,2,21] % Better to do this first \figset(fillmode=no,color=0) \figdrawcurve[11,2,1,10,12,11,2,1]\figdrawcurve[20,1,2,21,22,20,1,2] \figdrawend % 3. Writing text on the figure \figvisu{\figBoxA}{\bf Sets intersection}{} \centerline{\box\figBoxA}