from matplotlib import pyplot as plt from libs.aco import AntColony, total_distance name = "berlin52" cities = [[565, 575], [25, 185], [345, 750], [945, 685], [845, 655], [880, 660], [25, 230], [525, 1000], [580, 1175], [650, 1130], [1605, 620], [1220, 580], [1465, 200], [1530, 5], [845, 680], [725, 370], [145, 665], [415, 635], [510, 875], [560, 365], [300, 465], [520, 585], [480, 415], [835, 625], [975, 580], [1215, 245], [1320, 315], [1250, 400], [660, 180], [410, 250], [420, 555], [575, 665], [1150, 1160], [700, 580], [685, 595], [685, 610], [770, 610], [795, 645], [720, 635], [760, 650], [475, 960], [95, 260], [875, 920], [700, 500], [555, 815], [830, 485], [1170, 65], [830, 610], [605, 625], [595, 360], [1340, 725], [1740, 245]] optimal = 7542 n_ants = 10 alpha = 1 beta = 2 evaporation = 0.5 intensification = 2 max_times = [0.1, 0.5, 1, 2, 5, 10] iterations = 1 best_distances = [] times = [] colors = [ '#1f77b4', # Bleu moyen '#ff7f0e', # Orange '#2ca02c', # Vert '#d62728', # Rouge '#9467bd', # Violet '#8c564b', # Marron '#e377c2', # Rose '#7f7f7f', # Gris '#bcbd22', # Vert olive '#17becf', # Turquoise '#1b9e77', # Vert Teal '#d95f02', # Orange foncé '#7570b3', # Violet moyen '#e7298a', # Fuchsia '#66a61e', # Vert pomme '#e6ab02', # Jaune or '#a6761d', # Bronze '#666666', # Gris foncé '#f781bf', # Rose clair '#999999', # Gris moyen ] for max_time in max_times: for iteration in range(iterations): ant_colony = AntColony(cities, n_ants, alpha, beta, evaporation, intensification, max_time) print("Running iteration number {}/{} ({} sec)".format(iteration + 1, iterations, max_time)) best_route = ant_colony.run() best_distances.append([total_distance(best_route), colors[max_times.index(max_time) % len(colors)]]) times.append(max_time) title = "" title += "Best distance per iterations ({})\n".format(name) title += "Nb cities: " + str(len(cities)) + " / " title += "Ants: " + str(n_ants) + " / " title += "Alpha: " + str(alpha) + " / " title += "Beta: " + str(beta) + " / " title += "Evaporation: " + str(evaporation) + " / " title += "Intensification: " + str(intensification) plt.title(title) plt.xlabel('Iteration') plt.ylabel('Distance') plt.axhline(y=optimal, color='r') distances = [x[0] for x in best_distances] # Extractions des valeurs max_dist = max(distances) plt.ylim(0, max_dist+max_dist*0.2) values = [item[0] for item in best_distances] colors = [item[1] for item in best_distances] bars = plt.bar(range(len(values)), values, color=colors) for i, bar in enumerate(bars): yval = bar.get_height() plt.text(bar.get_x() + bar.get_width()/2, yval + 0.05, "dist: {}\ntime: {}s".format(int(yval), times[i]), rotation=75, ha='center', va='bottom') plt.xticks(range(len(values)), [str(i+1) for i in range(len(values))]) plt.show()