Visualization of Particle Interaction Simulation import Tkinter as tk from tkinter_widget import TkinterWidget self.nr_of_fields = 0 self.root = root self.resolution = resolution self.destroy() self.canvas = canvas self.x = x self.y = y self.r = r self.circle_id = self.canvas.create_oval(x - r, y - r, x + r, y + r, fill="red") self.middle_id = self.canvas.create_oval(x - 4, y - 4, x + 4, y + 4, fill="orange") self.set_bindable_and_tagorid(self.canvas, [self.circle_id, self.middle_id]) self.particle_id = particle_id self.canvas.delete(self.circle_id) self.canvas.delete(self.middle_id)