def generate_cfg(self, net_params):
"""Generates .sumo.cfg files using net files and netconvert.
This includes files such as the routes vehicles can traverse and the
view settings of the gui (whether the gui is used or not). The
background of the gui is set here to be grey, with RGB values:
(100, 100, 100).
Parameters
----------
net_params: NetParams type
see flow/core/params.py
"""
start_time = 0
end_time = None
self.roufn = "%s.rou.xml" % self.name
addfn = "%s.add.xml" % self.name
cfgfn = "%s.sumo.cfg" % self.name
guifn = "%s.gui.cfg" % self.name
# specify routes vehicles can take
self.rts = self.specify_routes(net_params)
add = makexml("additional",
"http://sumo.dlr.de/xsd/additional_file.xsd")
for (edge, route) in self.rts.items():
add.append(E("route", id="route%s" % edge, edges=" ".join(route)))
printxml(add, self.cfg_path + addfn)
gui = E("viewsettings")
gui.append(E("scheme", name="real world"))
gui.append(
E("background",
backgroundColor="100,100,100",
showGrid="0",
gridXSize="100.00",
gridYSize="100.00"))
printxml(gui, self.cfg_path + guifn)
cfg = makexml("configuration",
"http://sumo.dlr.de/xsd/sumoConfiguration.xsd")
logging.debug(self.netfn)
cfg.append(
self._inputs(self.name,
net=self.netfn,
add=addfn,
rou=self.roufn,
gui=guifn))
t = E("time")
t.append(E("begin", value=repr(start_time)))
if end_time:
t.append(E("end", value=repr(end_time)))
cfg.append(t)
printxml(cfg, self.cfg_path + cfgfn)
return cfgfn
def generate_cfg(self, net_params):
"""
Generates .sumo.cfg files using net files and netconvert.
Requires:
num_cars: Number of cars to seed the simulation with
max_speed: max speed of cars
OR
type_list: List of types of cars to seed the simulation with
start_time: time to start the simulation
end_time: time to end the simulation
"""
start_time = 0
end_time = None
self.roufn = "%s.rou.xml" % self.name
addfn = "%s.add.xml" % self.name
cfgfn = "%s.sumo.cfg" % self.name
guifn = "%s.gui.cfg" % self.name
# specify routes vehicles can take
self.rts = self.specify_routes(net_params)
# TODO: add functionality for multiple routes (such as Braess)
add = makexml("additional",
"http://sumo.dlr.de/xsd/additional_file.xsd")
for (edge, route) in self.rts.items():
add.append(E("route", id="route%s" % edge, edges=" ".join(route)))
# specify (optional) rerouting actions
rerouting = self.specify_rerouters(net_params)
if rerouting is not None:
for rerouting_params in rerouting:
add.append(self._rerouter(rerouting_params["name"],
rerouting_params["from"],
rerouting_params["route"]))
printxml(add, self.cfg_path + addfn)
gui = E("viewsettings")
gui.append(E("scheme", name="real world"))
printxml(gui, self.cfg_path +guifn)
cfg = makexml("configuration",
"http://sumo.dlr.de/xsd/sumoConfiguration.xsd")
logging.debug(self.netfn)
cfg.append(self._inputs(self.name, net=self.netfn, add=addfn,
rou=self.roufn, gui=guifn))
t = E("time")
t.append(E("begin", value=repr(start_time)))
if end_time:
t.append(E("end", value=repr(end_time)))
cfg.append(t)
printxml(cfg, self.cfg_path + cfgfn)
return cfgfn
def make_routes(self):
"""Generate .rou.xml files using net files and netconvert.
This file specifies the sumo-specific properties of vehicles with
similar types, and well as the inflows of vehicles.
"""
vehicles = self.network.vehicles
routes = makexml('routes', 'http://sumo.dlr.de/xsd/routes_file.xsd')
# add the types of vehicles to the xml file
for params in vehicles.types:
type_params_str = {
key: str(params['type_params'][key])
for key in params['type_params']
}
routes.append(E('vType', id=params['veh_id'], **type_params_str))
# add the inflows from various edges to the xml file
if self.network.net_params.inflows is not None:
total_inflows = self.network.net_params.inflows.get()
for inflow in total_inflows:
for key in inflow:
if not isinstance(inflow[key], str):
inflow[key] = repr(inflow[key])
if key == 'edge':
inflow['route'] = 'route{}'.format(inflow['edge'])
del inflow['edge']
routes.append(_flow(**inflow))
printxml(routes, self.cfg_path + self.roufn)
def make_routes(self, scenario, initial_config):
"""Generates .rou.xml files using net files and netconvert.
This file specifies the sumo-specific properties of vehicles with
similar types, and well as the starting positions of vehicles. The
starting positions, however, may be modified in real-time (e.g. during
an environment reset).
Parameters
----------
scenario: Scenario type
scenario class calling this method. This contains information on
the properties and initial states of vehicles in the network.
initial_config: InitialConfig type
see flow/core/params.py
"""
vehicles = scenario.vehicles
routes = makexml("routes", "http://sumo.dlr.de/xsd/routes_file.xsd")
# add the types of vehicles to the xml file
for vtype, type_params in vehicles.types:
type_params_str = {
key: str(type_params[key])
for key in type_params
}
routes.append(E("vType", id=vtype, **type_params_str))
self.vehicle_ids = vehicles.get_ids()
if initial_config.shuffle:
random.shuffle(self.vehicle_ids)
# add the initial positions of vehicles to the xml file
positions = initial_config.positions
lanes = initial_config.lanes
for i, veh_id in enumerate(self.vehicle_ids):
veh_type = vehicles.get_state(veh_id, "type")
edge, pos = positions[i]
lane = lanes[i]
type_depart_speed = vehicles.get_initial_speed(veh_id)
routes.append(
self._vehicle(veh_type,
"route" + edge,
depart="0",
id=veh_id,
color="1,1,1",
departSpeed=str(type_depart_speed),
departPos=str(pos),
departLane=str(lane)))
# add the in-flows from various edges to the xml file
if self.net_params.in_flows is not None:
total_inflows = self.net_params.in_flows.get()
for inflow in total_inflows:
for key in inflow:
if not isinstance(inflow[key], str):
inflow[key] = repr(inflow[key])
routes.append(self._flow(**inflow))
printxml(routes, self.cfg_path + self.roufn)
def make_routes(self, scenario, initial_config):
vehicles = scenario.vehicles
type_list = vehicles.types
if vehicles.num_vehicles > 0:
routes = makexml("routes", "http://sumo.dlr.de/xsd/routes_file.xsd")
# add the types of vehicles to the xml file
for veh_type in vehicles.types:
routes.append(E("vType", id=veh_type, minGap="0", accel="100",
decel="100"))
self.vehicle_ids = vehicles.get_ids()
if initial_config.shuffle:
random.shuffle(self.vehicle_ids)
# add the initial positions of vehicles to the xml file
positions = initial_config.positions
lanes = initial_config.lanes
for i, id in enumerate(self.vehicle_ids):
veh_type = vehicles.get_state(id, "type")
edge, pos = positions[i]
lane = lanes[i]
indx_type = [i for i in range(len(type_list)) if type_list[i] == veh_type][0]
type_depart_speed = vehicles.get_initial_speed(id)
routes.append(self._vehicle(
veh_type, "route" + edge, depart="0", id=id,
color="1,0.0,0.0", departSpeed=str(type_depart_speed),
departPos=str(pos), departLane=str(lane)))
printxml(routes, self.cfg_path + self.roufn)
def GenerateXMLs(filepath="/home/mesto/flow/MyTests/flows.xml"):
flows = makexml('routes', 'http://sumo.dlr.de/xsd/routes_file.xsd')
flows.append(
CreateVTypeElem('human', '2.6', '4.5', '0.5', '70', '2.5', '0.0'))
flows.append(
CreateFlowElem('121304377#0', 'flow_0', '1', '900', '2156', 'human',
'28.3'))
flows.append(
CreateFlowElem('121304377#0', 'flow_1', '900', '1200', '2100', 'human',
'29.5'))
flows.append(
CreateFlowElem('121304377#0', 'flow_2', '1200', '1500', '2016',
'human', '28.3'))
flows.append(
CreateFlowElem('121304377#0', 'flow_3', '1500', '1800', '2100',
'human', '27.1'))
flows.append(
CreateFlowElem('121304377#0', 'flow_4', '1800', '2100', '2212',
'human', '21.5'))
flows.append(
CreateFlowElem('121304377#0', 'flow_5', '2100', '2400', '2156',
'human', '8.3'))
flows.append(
CreateFlowElem('121304377#0', 'flow_6', '2400', '2700', '3360',
'human', '14.1'))
flows.append(
CreateFlowElem('121304377#0', 'flow_7', '2700', '3000', '2548',
'human', '16.9'))
flows.append(
CreateFlowElem('121304377#0', 'flow_8', '3000', '3300', '2324',
'human', '8.3'))
flows.append(
CreateFlowElem('121304377#0', 'flow_9', '3300', '3600', '2716',
'human', '9.1'))
flows.append(
CreateFlowElem('121304377#0', 'flow_10', '3600', '3900', '2548',
'human', '10.2'))
flows.append(
CreateFlowElem('121304377#0', 'flow_11', '3900', '4200', '2716',
'human', '9.3'))
printxml(flows, filepath)
def make_routes(self, scenario, initial_config):
type_list = scenario.vehicles.types
num_cars = scenario.vehicles.num_vehicles
if num_cars > 0:
routes = makexml("routes", "http://sumo.dlr.de/xsd/routes_file.xsd")
for veh_type in scenario.vehicles.types:
routes.append(E("vType", id=veh_type, minGap="0"))
vehicle_ids = scenario.vehicles.get_ids()
if initial_config.shuffle:
random.shuffle(vehicle_ids)
positions = initial_config.positions
ring_positions = positions[:scenario.vehicles.num_vehicles -
scenario.num_merge_vehicles]
merge_positions = positions[scenario.vehicles.num_vehicles -
scenario.num_merge_vehicles:]
i_merge = 0
i_ring = 0
for i, id in enumerate(vehicle_ids):
if "merge" in scenario.vehicles.get_state(id, "type"):
route, pos = merge_positions[i_merge]
i_merge += 1
else:
route, pos = ring_positions[i_ring]
i_ring += 1
veh_type = scenario.vehicles.get_state(id, "type")
type_depart_speed = scenario.vehicles.get_initial_speed(id)
routes.append(
self._vehicle(veh_type, "route" + route,
depart="0",
departSpeed=str(type_depart_speed),
departPos=str(pos), id=id, color="1,0.0,0.0")
)
printxml(routes, self.cfg_path + self.roufn)
def generate_cfg(self, net_params, traffic_lights, routes):
"""Generate .sumo.cfg files using net files and netconvert.
This method is responsible for creating the following config files:
- *.add.xml: This file contains the sumo-specific properties of
vehicles with similar types, and properties of the traffic lights.
- *.rou.xml: This file contains the routes vehicles can traverse,
either from a specific starting edge, or by vehicle name, and well as
the inflows of vehicles.
- *.gui.cfg: This file contains the view settings of the gui (whether
the gui is used or not). The background of the gui is set here to be
grey, with RGB values: (100, 100, 100).
- *.sumo.cfg: This is the file that is used by the simulator to
identify the location of the various network, vehicle, and traffic
light properties that are used when instantiating the simulation.
Parameters
----------
net_params : flow.core.params.NetParams
see flow/core/params.py
traffic_lights : flow.core.params.TrafficLightParams
traffic light information, used to determine which nodes are
treated as traffic lights
routes : dict
Key = name of the starting edge
Element = list of edges a vehicle starting from this edge must
traverse.
"""
# this is the data that we will pass to the *.add.xml file
add = makexml('additional',
'http://sumo.dlr.de/xsd/additional_file.xsd')
# add the types of vehicles to the xml file
for params in self.network.vehicles.types:
type_params_str = {
key: str(params['type_params'][key])
for key in params['type_params']
}
add.append(E('vType', id=params['veh_id'], **type_params_str))
# add (optionally) the traffic light properties to the .add.xml file
num_traffic_lights = len(list(traffic_lights.get_properties().keys()))
if num_traffic_lights > 0:
if traffic_lights.baseline:
tl_params = traffic_lights.actuated_default()
tl_type = str(tl_params['tl_type'])
program_id = str(tl_params['program_id'])
phases = tl_params['phases']
max_gap = str(tl_params['max_gap'])
detector_gap = str(tl_params['detector_gap'])
show_detector = tl_params['show_detectors']
detectors = {'key': 'detector-gap', 'value': detector_gap}
gap = {'key': 'max-gap', 'value': max_gap}
if show_detector:
show_detector = {'key': 'show-detectors', 'value': 'true'}
else:
show_detector = {'key': 'show-detectors', 'value': 'false'}
nodes = self._inner_nodes # nodes where there's traffic lights
tll = []
for node in nodes:
tll.append({
'id': node['id'],
'type': tl_type,
'programID': program_id
})
for elem in tll:
e = E('tlLogic', **elem)
e.append(E('param', **show_detector))
e.append(E('param', **gap))
e.append(E('param', **detectors))
for phase in phases:
e.append(E('phase', **phase))
add.append(e)
else:
tl_properties = traffic_lights.get_properties()
for node in tl_properties.values():
# At this point, we assume that traffic lights are properly
# formed. If there are no phases for a static traffic
# light, ignore and use default
if node['type'] == 'static' and not node.get('phases'):
continue
elem = {
'id': str(node['id']),
'type': str(node['type']),
'programID': str(node['programID'])
}
if node.get('offset'):
elem['offset'] = str(node.get('offset'))
e = E('tlLogic', **elem)
for key, value in node.items():
if key == 'phases':
for phase in node.get('phases'):
e.append(E('phase', **phase))
else:
e.append(
E('param', **{
'key': key,
'value': str(value)
}))
add.append(e)
printxml(add, self.cfg_path + self.addfn)
# this is the data that we will pass to the *.gui.cfg file
gui = E('viewsettings')
gui.append(E('scheme', name='real world'))
gui.append(
E('background',
backgroundColor='100,100,100',
showGrid='0',
gridXSize='100.00',
gridYSize='100.00'))
printxml(gui, self.cfg_path + self.guifn)
# this is the data that we will pass to the *.rou.xml file
routes_data = makexml('routes',
'http://sumo.dlr.de/xsd/routes_file.xsd')
# add the routes to the .add.xml file
for route_id in routes.keys():
# in this case, we only have one route, convert into into a
# list of routes with one element
if isinstance(routes[route_id][0], str):
routes[route_id] = [(routes[route_id], 1)]
# add each route incrementally, and add a second term to denote
# the route number of the given route at the given edge
for i in range(len(routes[route_id])):
r, _ = routes[route_id][i]
routes_data.append(
E('route',
id='route{}_{}'.format(route_id, i),
edges=' '.join(r)))
# add the inflows from various edges to the xml file
if self.network.net_params.inflows is not None:
total_inflows = self.network.net_params.inflows.get()
for inflow in total_inflows:
# do not want to affect the original values
sumo_inflow = deepcopy(inflow)
# convert any non-string element in the inflow dict to a string
for key in sumo_inflow:
if not isinstance(sumo_inflow[key], str):
sumo_inflow[key] = repr(sumo_inflow[key])
# distribute the inflow rates across all routes from a given
# edge on the basis of the provided fractions for each route
edge = sumo_inflow['edge']
del sumo_inflow['edge']
for i, (_, frac) in enumerate(routes[edge]):
sumo_inflow['name'] += str(i)
sumo_inflow['route'] = 'route{}_{}'.format(edge, i)
for key in ['vehsPerHour', 'probability', 'period']:
if key in sumo_inflow:
sumo_inflow[key] = str(float(inflow[key]) * frac)
if 'number' in sumo_inflow:
sumo_inflow['number'] = str(
int(float(inflow['number']) * frac))
routes_data.append(_flow(**sumo_inflow))
printxml(routes_data, self.cfg_path + self.roufn)
# this is the data that we will pass to the *.sumo.cfg file
cfg = makexml('configuration',
'http://sumo.dlr.de/xsd/sumoConfiguration.xsd')
cfg.append(
_inputs(net=self.netfn,
add=self.addfn,
rou=self.roufn,
gui=self.guifn))
t = E('time')
t.append(E('begin', value=repr(0)))
cfg.append(t)
printxml(cfg, self.cfg_path + self.sumfn)
return self.sumfn
def generate_net(self,
net_params,
traffic_lights,
nodes,
edges,
types=None,
connections=None):
"""Generate Net files for the transportation network.
Creates different network configuration files for:
* nodes: x,y position of points which are connected together to form
links. The nodes may also be fitted with traffic lights, or can be
treated as priority or zipper merge regions if they combines several
lanes or edges together.
* edges: directed edges combining nodes together. These constitute the
lanes vehicles will be allowed to drive on.
* types (optional): parameters used to describe common features amount
several edges of similar types. If edges are not defined with common
types, this is not needed.
* connections (optional): describes how incoming and outgoing edge/lane
pairs on a specific node as connected. If none is specified, SUMO
handles these connections by default.
The above files are then combined to form a .net.xml file describing
the shape of the traffic network in a form compatible with SUMO.
Parameters
----------
net_params : flow.core.params.NetParams
network-specific parameters. Different networks require different
net_params; see the separate sub-classes for more information.
traffic_lights : flow.core.params.TrafficLightParams
traffic light information, used to determine which nodes are
treated as traffic lights
nodes : list of dict
A list of node attributes (a separate dict for each node). Nodes
attributes must include:
* id {string} -- name of the node
* x {float} -- x coordinate of the node
* y {float} -- y coordinate of the node
edges : list of dict
A list of edges attributes (a separate dict for each edge). Edge
attributes must include:
* id {string} -- name of the edge
* from {string} -- name of node the directed edge starts from
* to {string} -- name of the node the directed edge ends at
In addition, the attributes must contain at least one of the
following:
* "numLanes" {int} and "speed" {float} -- the number of lanes and
speed limit of the edge, respectively
* type {string} -- a type identifier for the edge, which can be
used if several edges are supposed to possess the same number of
lanes, speed limits, etc...
types : list of dict
A list of type attributes for specific groups of edges. If none are
specified, no .typ.xml file is created.
connections : list of dict
A list of connection attributes. If none are specified, no .con.xml
file is created.
Returns
-------
edges : dict <dict>
Key = name of the edge
Elements = length, lanes, speed
connection_data : dict < dict < list < (edge, pos) > > >
Key = name of the arriving edge
Key = lane index
Element = list of edge/lane pairs that a vehicle can traverse
from the arriving edge/lane pairs
"""
# add traffic lights to the nodes
tl_ids = list(traffic_lights.get_properties().keys())
for n_id in tl_ids:
indx = next(i for i, nd in enumerate(nodes) if nd['id'] == n_id)
nodes[indx]['type'] = 'traffic_light'
# for nodes that have traffic lights that haven't been added
for node in nodes:
if node['id'] not in tl_ids \
and node.get('type', None) == 'traffic_light':
traffic_lights.add(node['id'])
# modify the x and y values to be strings
node['x'] = str(node['x'])
node['y'] = str(node['y'])
if 'radius' in node:
node['radius'] = str(node['radius'])
# xml file for nodes; contains nodes for the boundary points with
# respect to the x and y axes
x = makexml('nodes', 'http://sumo.dlr.de/xsd/nodes_file.xsd')
for node_attributes in nodes:
x.append(E('node', **node_attributes))
printxml(x, self.net_path + self.nodfn)
# modify the length, shape, numLanes, and speed values
for edge in edges:
edge['length'] = str(edge['length'])
if 'priority' in edge:
edge['priority'] = str(edge['priority'])
if 'shape' in edge:
if not isinstance(edge['shape'], str):
edge['shape'] = ' '.join('%.2f,%.2f' % (x, y)
for x, y in edge['shape'])
if 'numLanes' in edge:
edge['numLanes'] = str(edge['numLanes'])
if 'speed' in edge:
edge['speed'] = str(edge['speed'])
# xml file for edges
x = makexml('edges', 'http://sumo.dlr.de/xsd/edges_file.xsd')
for edge_attributes in edges:
x.append(E('edge', attrib=edge_attributes))
printxml(x, self.net_path + self.edgfn)
# xml file for types: contains the the number of lanes and the speed
# limit for the lanes
if types is not None:
# modify the numLanes and speed values
for typ in types:
if 'numLanes' in typ:
typ['numLanes'] = str(typ['numLanes'])
if 'speed' in typ:
typ['speed'] = str(typ['speed'])
x = makexml('types', 'http://sumo.dlr.de/xsd/types_file.xsd')
for type_attributes in types:
x.append(E('type', **type_attributes))
printxml(x, self.net_path + self.typfn)
# xml for connections: specifies which lanes connect to which in the
# edges
if connections is not None:
# modify the fromLane and toLane values
for connection in connections:
if 'fromLane' in connection:
connection['fromLane'] = str(connection['fromLane'])
if 'toLane' in connection:
connection['toLane'] = str(connection['toLane'])
x = makexml('connections',
'http://sumo.dlr.de/xsd/connections_file.xsd')
for connection_attributes in connections:
if 'signal_group' in connection_attributes:
del connection_attributes['signal_group']
x.append(E('connection', **connection_attributes))
printxml(x, self.net_path + self.confn)
# xml file for configuration, which specifies:
# - the location of all files of interest for sumo
# - output net file
# - processing parameters for no internal links and no turnarounds
x = makexml('configuration',
'http://sumo.dlr.de/xsd/netconvertConfiguration.xsd')
t = E('input')
t.append(E('node-files', value=self.nodfn))
t.append(E('edge-files', value=self.edgfn))
if types is not None:
t.append(E('type-files', value=self.typfn))
if connections is not None:
t.append(E('connection-files', value=self.confn))
x.append(t)
t = E('output')
t.append(E('output-file', value=self.netfn))
x.append(t)
t = E('processing')
t.append(E('no-internal-links', value='false'))
t.append(E('no-turnarounds', value='true'))
x.append(t)
printxml(x, self.net_path + self.cfgfn)
subprocess.call([
'netconvert -c ' + self.net_path + self.cfgfn + ' --output-file=' +
self.cfg_path + self.netfn + ' --no-internal-links="false"'
],
shell=True)
# collect data from the generated network configuration file
error = None
for _ in range(RETRIES_ON_ERROR):
try:
edges_dict, conn_dict = self._import_edges_from_net(net_params)
return edges_dict, conn_dict
except Exception as e:
print('Error during start: {}'.format(e))
print('Retrying in {} seconds...'.format(WAIT_ON_ERROR))
time.sleep(WAIT_ON_ERROR)
raise error
def generate_cfg(self, net_params, traffic_lights, routes):
"""Generate .sumo.cfg files using net files and netconvert.
This includes files such as the routes vehicles can traverse,
properties of the traffic lights, and the view settings of the gui
(whether the gui is used or not). The background of the gui is set here
to be grey, with RGB values: (100, 100, 100).
Parameters
----------
net_params : NetParams type
see flow/core/params.py
traffic_lights : flow.core.traffic_lights.TrafficLights type
traffic light information, used to determine which nodes are
treated as traffic lights
routes : dict
Key = name of the starting edge
Element = list of edges a vehicle starting from this edge must
traverse.
"""
# specify routes vehicles can take
self.rts = routes
add = makexml('additional',
'http://sumo.dlr.de/xsd/additional_file.xsd')
# add the routes to the .add.xml file
for (edge, route) in self.rts.items():
add.append(E('route', id='route%s' % edge, edges=' '.join(route)))
# add (optionally) the traffic light properties to the .add.xml file
num_traffic_lights = len(list(traffic_lights.get_properties().keys()))
if num_traffic_lights > 0:
if traffic_lights.baseline:
tl_params = traffic_lights.actuated_default()
tl_type = str(tl_params['tl_type'])
program_id = str(tl_params['program_id'])
phases = tl_params['phases']
max_gap = str(tl_params['max_gap'])
detector_gap = str(tl_params['detector_gap'])
show_detector = tl_params['show_detectors']
detectors = {'key': 'detector-gap', 'value': detector_gap}
gap = {'key': 'max-gap', 'value': max_gap}
if show_detector:
show_detector = {'key': 'show-detectors', 'value': 'true'}
else:
show_detector = {'key': 'show-detectors', 'value': 'false'}
# FIXME(ak): add abstract method
nodes = self.specify_tll(net_params)
tll = []
for node in nodes:
tll.append({
'id': node['id'],
'type': tl_type,
'programID': program_id
})
for elem in tll:
e = E('tlLogic', **elem)
e.append(E('param', **show_detector))
e.append(E('param', **gap))
e.append(E('param', **detectors))
for phase in phases:
e.append(E('phase', **phase))
add.append(e)
else:
tl_properties = traffic_lights.get_properties()
for node in tl_properties.values():
# At this point, we assume that traffic lights are properly
# formed. If there are no phases for a static traffic
# light, ignore and use default
if node['type'] == 'static' and not node.get('phases'):
continue
elem = {
'id': str(node['id']),
'type': str(node['type']),
'programID': str(node['programID'])
}
if node.get('offset'):
elem['offset'] = str(node.get('offset'))
e = E('tlLogic', **elem)
for key, value in node.items():
if key == 'phases':
for phase in node.get('phases'):
e.append(E('phase', **phase))
else:
e.append(
E('param', **{
'key': key,
'value': str(value)
}))
add.append(e)
printxml(add, self.cfg_path + self.addfn)
gui = E('viewsettings')
gui.append(E('scheme', name='real world'))
gui.append(
E('background',
backgroundColor='100,100,100',
showGrid='0',
gridXSize='100.00',
gridYSize='100.00'))
printxml(gui, self.cfg_path + self.guifn)
cfg = makexml('configuration',
'http://sumo.dlr.de/xsd/sumoConfiguration.xsd')
cfg.append(
_inputs(net=self.netfn,
add=self.addfn,
rou=self.roufn,
gui=self.guifn))
t = E('time')
t.append(E('begin', value=repr(0)))
cfg.append(t)
printxml(cfg, self.cfg_path + self.sumfn)
return self.sumfn
def generate_net(self, net_params, traffic_lights):
"""Generates Net files for the transportation network.
Creates different network configuration files for:
* nodes: x,y position of points which are connected together to form
links. The nodes may also be fitted with traffic lights, or can be
treated as priority or zipper merge regions if they combines several
lanes or edges together.
* edges: directed edges combining nodes together. These constitute the
lanes vehicles will be allowed to drive on.
* types (optional): parameters used to describe common features amount
several edges of similar types. If edges are not defined with common
types, this is not needed.
* connections (optional): describes how incoming and outgoing edge/lane
pairs on a specific node as connected. If none is specified, SUMO
handles these connections by default.
The above files are then combined to form a .net.xml file describing
the shape of the traffic network in a form compatible with SUMO.
Parameters
----------
net_params : flow.core.params.NetParams type
network-specific parameters. Different networks require different
net_params; see the separate sub-classes for more information.
traffic_lights : flow.core.traffic_lights.TrafficLights type
traffic light information, used to determine which nodes are
treated as traffic lights
Returns
-------
edges : dict <dict>
Key = name of the edge
Elements = length, lanes, speed
connection_data : dict < dict < list<tup> > >
Key = name of the arriving edge
Key = lane index
Element = list of edge/lane pairs that a vehicle can traverse
from the arriving edge/lane pairs
"""
nodfn = "%s.nod.xml" % self.name
edgfn = "%s.edg.xml" % self.name
typfn = "%s.typ.xml" % self.name
cfgfn = "%s.netccfg" % self.name
netfn = "%s.net.xml" % self.name
confn = "%s.con.xml" % self.name
# specify the attributes of the nodes
nodes = self.specify_nodes(net_params)
# add traffic lights to the nodes
for n_id in traffic_lights.get_ids():
indx = next(i for i, nd in enumerate(nodes) if nd["id"] == n_id)
nodes[indx]["type"] = "traffic_light"
# xml file for nodes; contains nodes for the boundary points with
# respect to the x and y axes
x = makexml("nodes", "http://sumo.dlr.de/xsd/nodes_file.xsd")
for node_attributes in nodes:
x.append(E("node", **node_attributes))
printxml(x, self.net_path + nodfn)
# collect the attributes of each edge
edges = self.specify_edges(net_params)
# xml file for edges
x = makexml("edges", "http://sumo.dlr.de/xsd/edges_file.xsd")
for edge_attributes in edges:
x.append(E("edge", attrib=edge_attributes))
printxml(x, self.net_path + edgfn)
# specify the types attributes (default is None)
types = self.specify_types(net_params)
# xml file for types: contains the the number of lanes and the speed
# limit for the lanes
if types is not None:
x = makexml("types", "http://sumo.dlr.de/xsd/types_file.xsd")
for type_attributes in types:
x.append(E("type", **type_attributes))
printxml(x, self.net_path + typfn)
# specify the connection attributes (default is None)
connections = self.specify_connections(net_params)
# xml for connections: specifies which lanes connect to which in the
# edges
if connections is not None:
x = makexml("connections",
"http://sumo.dlr.de/xsd/connections_file.xsd")
for connection_attributes in connections:
x.append(E("connection", **connection_attributes))
printxml(x, self.net_path + confn)
# check whether the user requested no-internal-links (default="true")
if net_params.no_internal_links:
no_internal_links = "true"
else:
no_internal_links = "false"
# xml file for configuration, which specifies:
# - the location of all files of interest for sumo
# - output net file
# - processing parameters for no internal links and no turnarounds
x = makexml("configuration",
"http://sumo.dlr.de/xsd/netconvertConfiguration.xsd")
t = E("input")
t.append(E("node-files", value=nodfn))
t.append(E("edge-files", value=edgfn))
if types is not None:
t.append(E("type-files", value=typfn))
if connections is not None:
t.append(E("connection-files", value=confn))
x.append(t)
t = E("output")
t.append(E("output-file", value=netfn))
x.append(t)
t = E("processing")
t.append(E("no-internal-links", value="%s" % no_internal_links))
t.append(E("no-turnarounds", value="true"))
x.append(t)
printxml(x, self.net_path + cfgfn)
subprocess.call([
"netconvert -c " + self.net_path + cfgfn + " --output-file=" +
self.cfg_path + netfn +
' --no-internal-links="%s"' % no_internal_links
],
shell=True)
# location of the .net.xml file
self.netfn = netfn
# collect data from the generated network configuration file
error = None
for _ in range(RETRIES_ON_ERROR):
try:
edges_dict, conn_dict = self._import_edges_from_net()
return edges_dict, conn_dict
except Exception as error:
print("Error during start: {}".format(traceback.format_exc()))
print("Retrying in {} seconds...".format(WAIT_ON_ERROR))
time.sleep(WAIT_ON_ERROR)
raise error
def generate_cfg(self, net_params, traffic_lights):
"""Generates .sumo.cfg files using net files and netconvert.
This includes files such as the routes vehicles can traverse,
properties of the traffic lights, and the view settings of the gui
(whether the gui is used or not). The background of the gui is set here
to be grey, with RGB values: (100, 100, 100).
Parameters
----------
net_params: NetParams type
see flow/core/params.py
traffic_lights : flow.core.traffic_lights.TrafficLights type
traffic light information, used to determine which nodes are
treated as traffic lights
"""
start_time = 0
end_time = None
self.roufn = "%s.rou.xml" % self.name
addfn = "%s.add.xml" % self.name
cfgfn = "%s.sumo.cfg" % self.name
guifn = "%s.gui.cfg" % self.name
# specify routes vehicles can take
self.rts = self.specify_routes(net_params)
add = makexml("additional",
"http://sumo.dlr.de/xsd/additional_file.xsd")
# add the routes to the .add.xml file
for (edge, route) in self.rts.items():
add.append(E("route", id="route%s" % edge, edges=" ".join(route)))
# add (optionally) the traffic light properties to the .add.xml file
if traffic_lights.num_traffic_lights > 0:
if traffic_lights.baseline:
tl_type = str(traffic_lights["tl_type"])
program_id = str(traffic_lights["program_id"])
phases = traffic_lights["phases"]
max_gap = str(traffic_lights["max_gap"])
detector_gap = str(traffic_lights["detector_gap"])
show_detector = traffic_lights["show_detectors"]
detectors = {"key": "detector-gap", "value": detector_gap}
gap = {"key": "max-gap", "value": max_gap}
if show_detector:
show_detector = {"key": "show-detectors", "value": "true"}
else:
show_detector = {"key": "show-detectors", "value": "false"}
# FIXME(ak): add abstract method
nodes = self.specify_tll(net_params)
tll = []
for node in nodes:
tll.append({
"id": node['id'],
"type": tl_type,
"programID": program_id
})
for elem in tll:
e = E("tlLogic", **elem)
e.append(E("param", **show_detector))
e.append(E("param", **gap))
e.append(E("param", **detectors))
for phase in phases:
e.append(E("phase", **phase))
add.append(e)
else:
tl_properties = traffic_lights.get_properties()
for node in tl_properties.values():
# at this point, the generator assumes that traffic lights
# are properly formed. If there are no phases for a static
# traffic light, ignore and use default
if node["type"] == "static" and not node.get("phases"):
continue
elem = {
"id": str(node["id"]),
"type": str(node["type"]),
"programID": str(node["programID"])
}
if node.get("offset"):
elem["offset"] = str(node.get("offset"))
e = E("tlLogic", **elem)
for key, value in node.items():
if key == "phases":
for phase in node.get("phases"):
e.append(E("phase", **phase))
else:
e.append(
E("param", **{
"key": key,
"value": str(value)
}))
add.append(e)
printxml(add, self.cfg_path + addfn)
gui = E("viewsettings")
gui.append(E("scheme", name="real world"))
gui.append(
E("background",
backgroundColor="100,100,100",
showGrid="0",
gridXSize="100.00",
gridYSize="100.00"))
printxml(gui, self.cfg_path + guifn)
cfg = makexml("configuration",
"http://sumo.dlr.de/xsd/sumoConfiguration.xsd")
logging.debug(self.netfn)
cfg.append(
self._inputs(self.name,
net=self.netfn,
add=addfn,
rou=self.roufn,
gui=guifn))
t = E("time")
t.append(E("begin", value=repr(start_time)))
if end_time:
t.append(E("end", value=repr(end_time)))
cfg.append(t)
printxml(cfg, self.cfg_path + cfgfn)
return cfgfn
from lxml import etree
E = etree #.Element
import xml.etree.ElementTree as ET
from flow.core.util import makexml, printxml, ensure_dir
file = "/home/mesto/flow/MyTests/I24-62.add.xml"
tree = E.parse(file)
if __name__ == "__main__":
root = tree.getroot()
#tree.append(file)
add = makexml('additional', 'http://sumo.dlr.de/xsd/additional_file.xsd')
for child in root:
add.append(child)
#add.append(E('flow', id = 'Test'))
printxml(add, "/home/mesto/flow/MyTests/test.xml")
def make_routes(self, scenario, positions, lanes, shuffle):
"""Generates .rou.xml files using net files and netconvert.
This file specifies the sumo-specific properties of vehicles with
similar types, and well as the starting positions of vehicles. The
starting positions, however, may be modified in real-time (e.g. during
an environment reset).
Parameters
----------
scenario : Scenario type
scenario class calling this method. This contains information on
the properties and initial states of vehicles in the network.
positions : list of tuple (float, float)
list of start positions [(edge0, pos0), (edge1, pos1), ...]
lanes : list of float
list of start lanes
shuffle : bool
specifies whether the vehicle IDs should be shuffled before the
vehicles are assigned starting positions
"""
vehicles = scenario.vehicles
routes = makexml("routes", "http://sumo.dlr.de/xsd/routes_file.xsd")
# add the types of vehicles to the xml file
for params in vehicles.types:
type_params_str = {
key: str(params["type_params"][key])
for key in params["type_params"]
}
routes.append(E("vType", id=params["veh_id"], **type_params_str))
self.vehicle_ids = vehicles.get_ids()
if shuffle:
random.shuffle(self.vehicle_ids)
# add the initial positions of vehicles to the xml file
for i, veh_id in enumerate(self.vehicle_ids):
veh_type = vehicles.get_state(veh_id, "type")
edge, pos = positions[i]
lane = lanes[i]
type_depart_speed = vehicles.get_initial_speed(veh_id)
routes.append(
self._vehicle(veh_type,
"route" + edge,
depart="0",
id=veh_id,
color="1,1,1",
departSpeed=str(type_depart_speed),
departPos=str(pos),
departLane=str(lane)))
# add the in-flows from various edges to the xml file
if self.net_params.in_flows is not None:
total_inflows = self.net_params.in_flows.get()
for inflow in total_inflows:
for key in inflow:
if not isinstance(inflow[key], str):
inflow[key] = repr(inflow[key])
routes.append(self._flow(**inflow))
printxml(routes, self.cfg_path + self.roufn)
def generate_net(self, net_params):
"""
Generates Net files for the transportation network. Different networks
require different net_params; see the separate sub-classes for more
information.
"""
nodfn = "%s.nod.xml" % self.name
edgfn = "%s.edg.xml" % self.name
typfn = "%s.typ.xml" % self.name
cfgfn = "%s.netccfg" % self.name
netfn = "%s.net.xml" % self.name
confn = "%s.con.xml" % self.name
# specify the attributes of the nodes
nodes = self.specify_nodes(net_params)
# xml file for nodes; contains nodes for the boundary points with
# respect to the x and y axes
x = makexml("nodes", "http://sumo.dlr.de/xsd/nodes_file.xsd")
for node_attributes in nodes:
x.append(E("node", **node_attributes))
printxml(x, self.net_path + nodfn)
# collect the attributes of each edge
edges = self.specify_edges(net_params)
# xml file for edges
x = makexml("edges", "http://sumo.dlr.de/xsd/edges_file.xsd")
for edge_attributes in edges:
x.append(E("edge", attrib=edge_attributes))
printxml(x, self.net_path + edgfn)
# specify the types attributes (default is None)
types = self.specify_types(net_params)
# xml file for types: contains the the number of lanes and the speed
# limit for the lanes
if types is not None:
x = makexml("types", "http://sumo.dlr.de/xsd/types_file.xsd")
for type_attributes in types:
x.append(E("type", **type_attributes))
printxml(x, self.net_path + typfn)
# specify the connection attributes (default is None)
connections = self.specify_connections(net_params)
# xml for connections: specifies which lanes connect to which in the
# edges
if connections is not None:
x = makexml("connections",
"http://sumo.dlr.de/xsd/connections_file.xsd")
for connection_attributes in connections:
x.append(E("connection", **connection_attributes))
printxml(x, self.net_path + confn)
# check whether the user requested no-internal-links (default="true")
if net_params.no_internal_links:
no_internal_links = "true"
else:
no_internal_links = "false"
# xml file for configuration, which specifies:
# - the location of all files of interest for sumo
# - output net file
# - processing parameters for no internal links and no turnarounds
x = makexml("configuration",
"http://sumo.dlr.de/xsd/netconvertConfiguration.xsd")
t = E("input")
t.append(E("node-files", value=nodfn))
t.append(E("edge-files", value=edgfn))
if types is not None:
t.append(E("type-files", value=typfn))
if connections is not None:
t.append(E("connection-files", value=confn))
x.append(t)
t = E("output")
t.append(E("output-file", value=netfn))
x.append(t)
t = E("processing")
t.append(E("no-internal-links", value="%s" % no_internal_links))
t.append(E("no-turnarounds", value="true"))
x.append(t)
printxml(x, self.net_path + cfgfn)
retcode = subprocess.call(
["netconvert -c " + self.net_path + cfgfn + " --output-file=" +
self.cfg_path + netfn + ' --no-internal-links="%s"'
% no_internal_links],
stdout=sys.stdout, stderr=sys.stderr, shell=True)
self.netfn = netfn
return self.net_path + netfn
