Pyton2.7 Dot serpenstky triangle Tkinter - python-2.7

Question

For my homework I have to create a program that maps dots to a Tkinter window, and creates a serpenstky triangle out of it. I can create it easily with lines, but I dont understand how I am supposed to get the math to work with dots.
My main question is how would I create a full object with dots using math in python for Tkinter?
from Tkinter import *
from random import randint
# the 2D point class
class Point(object):
def __init__(self,x = 0.0 ,y = 0.0):
self._x = float(x)
self._y = float(y)
#property
def x(self):
return self._x
#x.setter
def x(self):
self._x = x
#property
def y(self):
return self._y
#y.setter
def y(self):
self._y = y
#parts from previous program that I left in here just in case
def __str__(self):
return '(' + str(self.x) + ',' + str(self.y) + ')'
def dist(self,other):
return ((self.x - other.x)**2 + (self.y - other.y)**2)**0.5
def midpt(self,other):
x=float((self.x + other.x)/2)
y=float((self.y + other.y)/2)
return Point(x,y)
# the coordinate system class: (0,0) is in the top-left corner
# inherits from the Canvas class of Tkinter
class chaosGame(Canvas):
def __init__(self, master):
Canvas.__init__(self, master, bg="white")
self.colors = ["black"]
self.radius = 0
self.pack(fill=BOTH, expand=1)
def plotPoints(self, n):
min_x = 10
min_y = 0
k=1
max_x = 600
max_y = 520
mid_x = (min_x + max_x)/2
mid_y = (min_y + max_y)/2
x1 = 3**k-1
y1 = 3**k-1
for i in range(n):
point = Point((x1), (y1))
self.plot(point.x, point.y)
k+= 1
def vertPoints(self, n):
topPoint = Point((300), (0))
leftPoint = Point((0), (510))
rightPoint = Point((590), (510))
self.vplot(topPoint.x, topPoint.y)
self.vplot(leftPoint.x, leftPoint.y)
self.vplot(rightPoint.x, rightPoint.y)
def vplot(self, x, y):
color = self.colors[randint(0, len(self.colors) - 1)]
self.create_oval(x, y, x + 10, y + 10, fill= "red")
def plot(self, x, y):
color = self.colors[randint(0, len(self.colors) - 1)]
self.create_oval(x, y, x + self.radius, y + self.radius, fill=color)
##########################################################
WIDTH = 600
HEIGHT = 520
# the number of points to plot
NUM_POINTS = 50000
# create the window
window = Tk()
window.geometry("{}x{}".format(WIDTH, HEIGHT))
window.title("Triangles")
# create the coordinate system as a Tkinter canvas inside the window
s = chaosGame(window)
# plot some random points
s.plotPoints(NUM_POINTS)
s.vertPoints(3)
# wait for the window to close
window.mainloop()