You have full control over the simulation duration. As long as the while
loop is executed, your simulation continues. Jakob just wrote it as some
sample code to adapt to your purpose. Could be something like:
runSim = True
steps = 0
while runSim:
traci.simulationStep()
steps += 1
# stop criterion - can be any other condition
runSim = steps < 3600
Regards
Mirko
Am 08.09.2018 um 17:56 schrieb Muktadir R Chowdhury (mrchwdhr):
Will the following loop continue to run till the simulation finishes?
while True:
traci.simulationStep()
Muktadir
------------------------------------------------------------------------
*From:* [email protected] <[email protected]>
on behalf of Jakob Erdmann <[email protected]>
*Sent:* Friday, September 7, 2018 6:47:54 PM
*To:* Sumo project User discussions
*Subject:* Re: [sumo-user] Getting information from simulated vehicle
Yes.
2018-09-07 14:35 GMT+02:00 Muktadir R Chowdhury (mrchwdhr)
<[email protected] <mailto:[email protected]>>:
Regarding client ordering: the process that spawns the clients
just needs to assign an arbitrary running number and this number
is given after connecting with the setOrder command.
Does it mean setting up the order in which the clients will be
served by Traci server?
Muktadir
------------------------------------------------------------------------
*From:* [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> on behalf of Jakob Erdmann
<[email protected] <mailto:[email protected]>>
*Sent:* Friday, September 7, 2018 6:09:03 PM
*To:* Sumo project User discussions
*Subject:* Re: [sumo-user] Getting information from simulated vehicle
The web service technology employed by TraaS can be used in a
local network without involving the world wide web.
Regarding client ordering: the process that spawns the clients
just needs to assign an arbitrary running number and this number
is given after connecting with the setOrder command.
2018-09-07 13:56 GMT+02:00 Muktadir R Chowdhury (mrchwdhr)
<[email protected] <mailto:[email protected]>>:
My client program can not be web-based. So I am left with the
first option and I am using C++ Traci API.
When using TraCI in multi-client mode, all clients have to
connect at the beginning and all of them have to run at least
a loop similar to
while True:
traci.simulationStep()
According to document: "Please note that in multi client
scenarios you must explicity specify the execution order of
the clients using the /SetOrder/-command
<http://sumo.dlr.de/wiki/TraCI/Control-related_commands#Command_0x03:_SetOrder>."
Do I also have to do it here? If so how can I do it?
I don't needmy client to interfere with the simulation. I just
want the simulation to run and the clients will get info as
needed.
Muktadir
------------------------------------------------------------------------
*From:* [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> on behalf of Jakob
Erdmann <[email protected] <mailto:[email protected]>>
*Sent:* Friday, September 7, 2018 5:19:58 PM
*To:* Sumo project User discussions
*Subject:* Re: [sumo-user] Getting information from simulated
vehicle
When using TraCI in multi-client mode, all clients have to
connect at the beginning and all of them have to run at least
a loop similar to
while True:
traci.simulationStep()
Alternatively, you can use TraaS (TraCI as a Service) which
acts as a single client and collects commands from an
arbitrary number of web service clients and forwards them to
sumo. (http://traas.sourceforge.net/cms/
<http://traas.sourceforge.net/cms/>)
TraaS is already part of sumo and can be found in sumo/bin.
regards,
Jakob
2018-09-07 13:12 GMT+02:00 Muktadir R Chowdhury (mrchwdhr)
<[email protected] <mailto:[email protected]>>:
Thanks for your reply. Ok I will upgrade my SUMO.
According to this
http://sumo.dlr.de/wiki/TraCI#V2X_simulation
<http://sumo.dlr.de/wiki/TraCI#V2X_simulation> , "When
started with the --remote-port /<INT>/
<http://sumo.dlr.de/wiki/Basics/Notation#Referenced_Data_Types>
option,
SUMO <http://sumo.dlr.de/wiki/SUMO> only prepares the
simulation and waits for all external applications to
connect and take over the control. ".
That means client connected to SUMO is responsible for
running the simulation. But, what I want to do is SUMO
will run as soon as I issue the command "sumo
--remote-port <INT> --num-clients <INT>". Then each client
(correspond to a vehicle) will connect to SUMO and request
some vehicle specific information (like current position
etc.).
Can you please give me a pointer on how can I do this?
Muktadir
------------------------------------------------------------------------
*From:* [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> on behalf of Jakob
Erdmann <[email protected] <mailto:[email protected]>>
*Sent:* Friday, September 7, 2018 4:58:36 PM
*To:* Sumo project User discussions
*Subject:* Re: [sumo-user] Getting information from
simulated vehicle
Multi-client support is only available since version
0.31.0. I recommend upgrading to version 1.0.0, though.
regards,
Jakob
2018-09-07 12:56 GMT+02:00 Muktadir R Chowdhury (mrchwdhr)
<[email protected] <mailto:[email protected]>>:
How can I specify the number of clients when starting
SUMO, I am using SUMO version 0.25 and it is saying
"no option with the name 'num-clients' exists."
Muktadir
------------------------------------------------------------------------
*From:* [email protected]
<mailto:[email protected]>
<[email protected]
<mailto:[email protected]>> on behalf of
Jakob Erdmann <[email protected]
<mailto:[email protected]>>
*Sent:* Friday, September 7, 2018 4:19:59 PM
*To:* Sumo project User discussions
*Subject:* Re: [sumo-user] Getting information from
simulated vehicle
Yes, as long as you know the number of clients in advance.
2018-09-07 12:05 GMT+02:00 Muktadir R Chowdhury
(mrchwdhr) <[email protected]
<mailto:[email protected]>>:
I want to achieve the following in SUMO:
(1) SUMO will run in a specified port. Let's say
there are "n" vehicles in the simulation.
(2) SUMO will keep running while "n" client will
connect to SUMO, and each client will print
location information of each of the vehicles in
regular interval.
Is it possible to do?
Muktadir Chowdhury
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