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