Coordinates x and y of a vehicle in Omnet+SUMO simulation using VEINS

[Rayane Sibaï]

Hello,

In the results of the simulation in OMNeT + sumo using Veins3a3, a vehicle has such position: startPos (616.75,48.45,0) direction (6.12303e-017,1,0). however, in my network, the maximum value of x 500m and for y is 300m. My question is how to know the true position (x and y coordinates of the vehicle) at a precise moment.

Thank in advance

[Christoph Sommer]

Rayane Sibaï wrote:
> a vehicle has such position: startPos (616.75,48.45,0) direction
> (6.12303e-017,1,0). however, in my network, the maximum value of x 500m
> and for y is 300m. My question is how to know the true position

This is a frequently asked question.

Please have a look at the FAQ on
http://veins.car2x.org/documentation/faq/

Best,

Christoph

--
Dr. Christoph Sommer
Distributed Embedded Systems Group
University of Paderborn, Germany
http://www.ccs-labs.org/~sommer/

[Rayane Sibaï]

Dear Christoph,

I already read the answer in the FAQ (the answer to the question "Why are the coordinates returned by Traci methods different from the ones I see in the GUI?"), and I understood why I get these values, but I did not understand how I can get the true coordinates of a vehicle at specific time.

I would be grateful for your help!

[Christoph Sommer]

Rayane Sibaï wrote:
> I already read the answer in the FAQ[...], but I did
> not understand how I can get the true coordinates of a vehicle at some
> point.

The answer is actually below this question: The Veins TraCI modules
transparently perform this transformation (using internal methods
omnet2traci and traci2omnet).

[Rayane Sibaï]

Dear Christoph,

I use this formula to find the coordinates of each vehicle at a specific time, but, what is the value of the margin?

new coord (x, y) : [ (x + netbounds1.x - margin) , ( ( netbounds2.y - netbounds1.y ) - (y - netbounds1.y ) + margin ) ) ]

where netbounds1 . x = Min (playground size. x)

and netbounds1 . y = Min (playground size. y)

and netbounds2 . x = Max (playground size.x)

and netbounds2 . y = Max (playground size.y)

Thanks,

[Christoph Sommer]

Rayane Sibaï wrote:
> I use this formula to find the coordinates of each vehicle at a specific
> time, but, what is the value of the margin?

Just use the methods omnet2traci and traci2omnet. They are designed to
do exactly what you want.

[h rahmatzehi]

Hi Dear Sommer,

I found junctions with this code in veins4.4

traci->getJunctionIds()

How can I find these junctions' position?

در شنبه 29 نوامبر 2014، ساعت 1:12:59 (UTC+3:30)، Christoph Sommer نوشته:

[Pradeep kumar Jha]

Dear Christoph

I am working to find out ,given a Coordinates I have to detect  if the Coordinate  lies within Eavesdropper zone or not. I am not able to know if I can get the center position of a given Eavesdropper. Getting the center position of Eavesdropper will solve my problem.

I would be very grateful if you can provide me as to which file to explore .