def set_random_loads(max_for_each_route):
scheme_len = len(SystemBuilder.scheme.node)
for route in SystemBuilder.routes:
for k in range(int(random() * max_for_each_route)):
dispatch_st_num = route.route_list[int(random() * route.length())]
destination_is_founded = False
counter = 0
while not destination_is_founded:
counter += 1
assert counter < 999
destination_st_num = int(random() * scheme_len) + 1
try:
way_length, way_list = nx.bidirectional_dijkstra(
SystemBuilder.routes_scheme, dispatch_st_num, destination_st_num)
new_growth_coeff = GrowthCoeff(RandomFunctions.growth_coef_func(), way_list)
destination_is_founded = True
SystemBuilder.growth_coeffs.append(new_growth_coeff)
attr_name = SystemBuilder.ATTRIBUTE_GROWTH_LIST
SystemBuilder.scheme.node[dispatch_st_num][attr_name].append(new_growth_coeff)
except nx.exception.NetworkXError:
pass
except nx.exception.NetworkXNoPath:
pass
def build_random_routes(attempts_num, min_len):
scheme_len = len(SystemBuilder.scheme.node)
k = 0
while k < attempts_num:
first_station_number = int(random() * scheme_len) + 1
second_station_number = int(random() * scheme_len) + 1
way_len, way_list = \
nx.bidirectional_dijkstra(SystemBuilder.scheme, first_station_number, second_station_number)
if way_len >= min_len:
way_list = way_list + way_list[::-1][1:]
new_route = Route(way_list, RandomFunctions.launch_cost_func(way_list))
SystemBuilder.routes.append(new_route)
k += 1
SystemBuilder._create_routes_scheme()
def build_random_brunches(len, first_number=1, second_number=2):
drop_len_func = lambda len: int(len/4)
brunch_prob = 0.5
brunch_list = list()
for k in range(len-1):
SystemBuilder.scheme.add_edge(first_number, second_number, weight=1)
SystemBuilder.scheme[first_number][second_number][SystemBuilder.ATTRIBUTE_TIME_IN_WAY] = RandomFunctions.time_distance_func()
if random() < brunch_prob:
brunch_list.append(first_number)
first_number = second_number
second_number += 1
try:
if SystemBuilder.build_random_brunches.max < second_number:
SystemBuilder.build_random_brunches.max = second_number
except AttributeError:
SystemBuilder.build_random_brunches.max = second_number
for number in brunch_list:
SystemBuilder.build_random_brunches(
drop_len_func(len), first_number=number, second_number=SystemBuilder.build_random_brunches.max)
attr_name = SystemBuilder.ATTRIBUTE_GROWTH_LIST
nx.set_node_attributes(SystemBuilder.scheme, attr_name, None)
for num in SystemBuilder.scheme.nodes():
SystemBuilder.scheme.node[num][attr_name] = list()
def set_random_launch_periods():
for route in SystemBuilder.routes:
route.period = RandomFunctions.period_func()
def set_random_storage_costs():
attr_name = SystemBuilder.ATTRIBUTE_STORAGE_PRICE
nx.set_node_attributes(SystemBuilder.scheme, attr_name, None)
for num in SystemBuilder.scheme.nodes():
SystemBuilder.scheme.node[num][attr_name] = RandomFunctions.storage_cost_func()
def set_random_launch_costs():
for route in SystemBuilder.routes:
route.cost_of_launch = RandomFunctions.launch_cost_func(route.route_list)
