Hello, I am trying to create a simple interface with python. I am not getting any errors in python script, but the desired sumo file isn't getting executed.
What I wish to do for now to see of the code is working right or not is, if
the traffic light turns red, any vehicle on that edge should stop right
away.
The two sets of TraCI commands I'll need to do this are:
- Traffic Lights Value Retrieval
- Change Vehicle State
I could understand the use of *Traffic Lights Value Retrieval* command from
*runner.py*
*traci.trafficlights.getPhase*("ID_of_trafficlight")
However, I am not sure about use of *Change Vehicle State*
*-*Use of PORT
How do I identify the PORT? For now I have declared the same port as given
in runner.py
-Starting sumo as a subprocess
I have stored the path as a string in a variable and using that in function
subporocess.Popen()
I believe this should open the file I wish to access via python script
(att2.sumo.cfg)
For now I have given a dummy step which doesn't do anything in TraCI. Once
this works, I can make further changes.
All the files are currently in the same folder.
Regards,
Vaibhav Rungta
Graduate Student - Industrial and Systems Engineering
Graduate Assistant - Toyota Production Systems Lab
Research Assistant - University Transport Research Center
585-754-7133
#First interfacing program
#TraCI
import os #OS module which provides function for interacting with OS
import sys #to communicate with other software
import optparse #a python module to write command line tools
import subprocess #allows to communicate b/w pyhton script and cmd.exe
import random
#check for environment variables
if 'sumo-0.27.1' in os.environ:
tools = os.path.join(os.environ['sumo-0.27.1'], 'tools')
sys.path.append(tools)
else:
sys.exit("please declare environment variables 'sumo-0.27.1'")
PORT = 8813 #port used for communicating with sumo instance
#sumo is started as a subprocess
sumoBinary = "C:/Users/vr2002/Downloads/sumo-win64-0.27.1/sumo-0.27.1/bin"
#sumoBinary is a variable which holds the path to sumo-gui, you can any name
for this variable
sumoProcess = subprocess.Popen([sumoBinary, "-c", "att2.sumo.cfg",
"--remote-port", str(PORT)], stdout=sys.stdout, stderr=sys.stderr)
import traci
traci.init(PORT)
step = 0
while step < 1000:
traci.simulationStep()
if traci.trafficlights.getPhase("B2") == 0: #signal at B2 in state GGrr
continue
else:
continue
traci.close()
<?xml version="1.0" encoding="UTF-8"?> <!-- generated on 10/24/16 10:44:10 by SUMO netconvert Version 0.27.1 <?xml version="1.0" encoding="UTF-8"?> <configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/netconvertConfiguration.xsd";> <input> <node-files value="att2.nod.xml"/> <edge-files value="att2.edg.xml"/> <connection-files value="att2.con.xml"/> <type-files value="att2.typ.xml"/> </input> <output> <output-file value="att2.net.xml"/> </output> <processing> <no-turnarounds value="true"/> </processing> </configuration> --> <net version="0.27" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/net_file.xsd";> <location netOffset="1000.00,1000.00" convBoundary="0.00,0.00,2000.00,2000.00" origBoundary="-1000.00,-1000.00,1000.00,1000.00" projParameter="!"/> <type id="a" priority="1" numLanes="2" speed="17.60"/> <edge id=":B1_0" function="internal"> <lane 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1504.95,1500.00"/> <lane id=":D3_0_1" index="1" speed="17.60" length="0.10" shape="1501.65,1500.00 1501.65,1500.00"/> </edge> <edge id="A2B2" from="A2" to="B2" priority="1" type="a"> <lane id="A2B2_0" index="0" speed="17.60" length="498.55" shape="0.00,995.05 498.55,995.05"/> <lane id="A2B2_1" index="1" speed="17.60" length="498.55" shape="0.00,998.35 498.55,998.35"/> </edge> <edge id="B0B1" from="B0" to="B1" priority="1" type="a"> <lane id="B0B1_0" index="0" speed="17.60" length="500.00" shape="504.95,0.00 504.95,500.00"/> <lane id="B0B1_1" index="1" speed="17.60" length="500.00" shape="501.65,0.00 501.65,500.00"/> </edge> <edge id="B1B2" from="B1" to="B2" priority="1" type="a"> <lane id="B1B2_0" index="0" speed="17.60" length="491.95" shape="504.95,500.00 504.95,991.95"/> <lane id="B1B2_1" index="1" speed="17.60" length="491.95" shape="501.65,500.00 501.65,991.95"/> </edge> <edge id="B2B3" from="B2" to="B3" priority="1" type="a"> <lane id="B2B3_0" index="0" speed="17.60" 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<lane id="D0D1_0" index="0" speed="17.60" length="500.00" shape="1504.95,0.00 1504.95,500.00"/> <lane id="D0D1_1" index="1" speed="17.60" length="500.00" shape="1501.65,0.00 1501.65,500.00"/> </edge> <edge id="D1D2" from="D1" to="D2" priority="1" type="a"> <lane id="D1D2_0" index="0" speed="17.60" length="491.95" shape="1504.95,500.00 1504.95,991.95"/> <lane id="D1D2_1" index="1" speed="17.60" length="491.95" shape="1501.65,500.00 1501.65,991.95"/> </edge> <edge id="D2D3" from="D2" to="D3" priority="1" type="a"> <lane id="D2D3_0" index="0" speed="17.60" length="498.55" shape="1504.95,1001.45 1504.95,1500.00"/> <lane id="D2D3_1" index="1" speed="17.60" length="498.55" shape="1501.65,1001.45 1501.65,1500.00"/> </edge> <edge id="D2E2" from="D2" to="E2" priority="1" type="a"> <lane id="D2E2_0" index="0" speed="17.60" length="491.95" shape="1508.05,995.05 2000.00,995.05"/> <lane id="D2E2_1" index="1" speed="17.60" length="491.95" shape="1508.05,998.35 2000.00,998.35"/> </edge> <edge 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att2.sumo.cfg
Description: Binary data
------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? Reconnect with the command line and become more productive. Learn the new .NET and ASP.NET CLI. Get your free copy! http://sdm.link/telerik
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