r doesnot mean "the number of chaff point"

[vegetable-cock]

in fact, the "r" in fuzzy_vault.py means "the number of all points"

for i in range(t, r):  
    x_i = uniform(0, max_x * 1.1) 
    y_i = uniform(0, max_y * 1.1)
    vault.append([x_i, y_i])