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Re: [sumo-user] FCD output query
The fcd angle attribute is direction of movement relative to the x/x plane (also called heading).
To get relative angles between vehicles you need to subtract the heading from the angle of x,y positions of both vehicles.

Am Fr., 12. Feb. 2021 um 06:45 Uhr schrieb Moyukh Laha <iammoyukh@xxxxxxxxx>:
Thanks, Jakob. I have another doubt.

I find the 'angle'  field in fcd-output is described as--

The angle of the vehicle in navigational standard (0-360 degrees, going clockwise with 0 at the 12'o clock position)

Is it the angle of the vehicle position with respect to the reference (like X-axis and Y-axis) or its direction of movement?

I want to find the angle between the vehicles (position) i.e. angle of all vehicles with respect to one source vehicle. Can I use the angle field? or do I need to use the position of the vehicles (x,y) to compute such an angle?

Thanks.



On Thu, Feb 11, 2021 at 8:42 PM Jakob Erdmann <namdre.sumo@xxxxxxxxx> wrote:
By default, if the vehicle is visible in sumo-gui it should also be included in the fcd-output.
Note, that it is possible to configure only a portion of the vehicles to generate this output (https://sumo.dlr.de/docs/Simulation/Output/FCDOutput.html#restricting_the_set_of_vehicles_that_generate_output)

Am Do., 11. Feb. 2021 um 15:25 Uhr schrieb Moyukh Laha <iammoyukh@xxxxxxxxx>:
Hello,

I want to know the position of each vehicle at every timestep. I am using fcd -output for the same.

My doubt is does it store the position of all vehicles (including static ones)? or only the vehicles that are moving/changing their direction at that timestep?

When running the simulation from SUMO_GUI, I see a much higher number of vehicles. But when I do the fcd-output, the generated XML file stores a much less number of vehicles position at that time.

How do I get the position of all vehicles at every timestep including the static ones?

Thanks.
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