# Tk_star_polygon_demo.py

# Tk_star_polygon_demo.py -- Note: the points are rounded

from Tkinter import Tk, Canvas, BOTH

root = Tk()
root.geometry("400x400+30+30")

root.title("Star Polygon")
canvas = Canvas()

def star_5pt(x,y,s):
    a,b,c,d,e,f,g,h,j,k,m,n,p = 0,   96,  157,  180,  192,  250,  294,  308,  340,  357,  402,  476,  500
    #                           a     b     c     d     e     f     g     h     j     k     m     n     p
    plot_xy = [(a, d), (e, d), (f, a), (h, d), (p, d), (j, g), (m, n), (f, k), (b, n), (c, g)]
    nova=[]
    for xy in plot_xy:
            xy = (xy[0]*0.002)*s+x,(xy[1]*0.002)*s+y
            nova.append(xy)
    return nova

star = star_5pt(50,50,300)

canvas.create_polygon(star,outline='purple',fill='yellow',width=5)

canvas.pack(fill=BOTH,expand=1)

root.mainloop()