def create_uniform_points(n, d, ub=None):
if ub is None:
ub = n
np_points = np.random.randint(0, ub, size=(n, d))
eps = 0.1
eps_points = np.random.uniform(-eps, eps, size=(n, d))
np_points = np_points + eps_points
point_set = PointSet(np_points, n, d)
point_set.name = 'uniform'
return point_set
def create_grid_points(n, d):
assert d == 2
np_points = np.zeros(shape=(n, d), dtype=float)
root_n = int(math.ceil(math.sqrt(n)))
eps = 0.1
x = 0.0
y = 0.0
row = 0
diff = 5.0
for i in range(root_n):
y = 0.0
for j in range(root_n):
x_eps = random.uniform(-eps, eps)
y_eps = random.uniform(-eps, eps)
np_points[row] = np.array((x + x_eps, y + y_eps))
row += 1
y += diff
x += diff
assert row == n
point_set = PointSet(np_points, n, d)
point_set.name = 'grid'
return point_set
def create_pointset(np_array, n, d, name):
point_set = PointSet(np_array, n, d)
point_set.name = name
return point_set
