Bezier curves
This script defines functions which can draw Bezier curves using the kandinsky library
the function that does the actual drawing is:
draw_bezier(funct_bezier,points,Nsteps,col)
- funct_bezier: either bezier1(), bezier2() or bezier3()
- points is a list or tuple of (x,y)
- Nsteps: number of points calculated, are connected with straight lines
- col: color to draw