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Re: [sumo-user] Class for person in Omnet++

Hi,

you may also want to take a look at this pull request to veins: https://github.com/sommer/veins/pull/148

It included subscription support for pedestrians. It seemed to have worked, yet was to complex to get merged into Veins. But you may be able to gain some ideas or salvage some code.


On 22.04.22 10:05, Jakob Erdmann wrote:
You'll have to patch TraCICommandInterface to add this method. The code is easily adaptable from other entities that provide a position (i.e. Poi)
On the implementation side, it should look like this:

Coord TraCICommandInterface::Person::getPosition()
{
return traci->genericGetCoord(CMD_GET_PERSON_VARIABLE, personId, VAR_POSITION, RESPONSE_GET_PERSON_VARIABLE);
}

Adding a pull-request against https://github.com/sommer/veins may help out future Veins users.

Am Fr., 22. Apr. 2022 um 09:50 Uhr schrieb Thanhnt Nguyen <thanhnt.fit@xxxxxxxxx>:
Thank you.
I suppose "traci" is an attribute of DemoBaseApplLayer class. In this class "traci" is an instance of TraCICommandInterface.
However the TraCICommandInterface class has no attribute named "person"
How could I access it?


On Fri, Apr 22, 2022 at 9:26 AM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
The default way to write position information is with --fcd-output.
If you need the information at runtime, you can call traci.person.getPosition(personID) 
The list of all person ids can be obtained with traci.person.getIDList() (This includes all persons generated by a personFlow)

Am Fr., 22. Apr. 2022 um 09:20 Uhr schrieb Thanhnt Nguyen <thanhnt.fit@xxxxxxxxx>:
I found a quick hack to get coordinates of all pedestrians in personFlow.
In the source code of SUMO, edit the file: GUIEdge.cpp. More specifically, find the statement:
person->drawGL(s);
and then write a new line: std::cout<<person->getPosition()<<std::endl;
It works, the position will be printed as sumo-gui runs alone.
However, a new problem arises: My project needs positions to be available while the simulation is running. But the data of position is not printed as choosing "Run as Omnet++ simulation". The simulation should end and a user should close the Qtenv, the data would be available in the terminal. I tried other ways (such as writing a file) but it doesn't change: data only is printed after a user closes Qtenv.
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--
Nguyen Tien Thanh
Department of Software Engineering
School of Information and Communication Technology (SoICT, http://www.fit.hut.edu.vn)
Hanoi University of Technology (HUT, http://www.hut.edu.vn)
1 DaiCoViet Road, Hanoi, Vietnam
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Website: www.fit.hut.edu.vn/~thanhnt
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-- 
Dominik S. Buse M.Sc.
PhD Candidate at Data Communications and Networking Group (TKN), TU Berlin, Germany
Researcher at Software Innovation Campus Paderborn, Paderborn University, Germany
http://www.tkn.tu-berlin.de/team/buse/

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