Re: [sumo-user] Problem getting Parameter of my device(No device of type

[Jakob Erdmann <namdre.sumo@xxxxxxxxx>]

Hello,

using vehicle.getParameter(vehID, DEVICENAME.PARAMNAME) is currently the recommended way to access vehicle devices.

To make this work, your device must override the device method deviceName() to return the value "Car2Car".

regards,

Jakob

Am So., 15. Dez. 2019 um 13:54 Uhr schrieb WTler <valentin.klamka@xxxxxxxxxxxxxx>:

Hi,
I made a new device-class called MSDevice_Car2Car_Energy_Sharing which just
extends MSDevice_Battery. So far when I load additional parameters in my
type.add.xml file like that:
<additional>
        <vType id="myType" emissionClass="Energy/unknown">

    </vType>
</additional>
it just works. That means every car in my simulation has this device now.
Now to my problem: I want to implement a method which calculates something
and call it with traci from python. When I want to get parameters like
energyConsumed I previously did:
traci.vehicle.getParameter(vehID,"device.battery.energyConsumed")
Now I want to call it from my class. When I try:
traci.vehicle.getParameter(vehID,"device.Car2Car.energyConsumed")
I get:
Vehicle '102' does not support device parameter
'device.Car2Car.energyConsumed' (No device of type 'Car2Car' exists).
How can I get a parameter of my class?
My insertOption method:

void
MSDevice_Car2Car_Energy_Sharing::insertOptions(OptionsCont& oc) {
        oc.addOptionSubTopic("Car2Car-Energy-Sharing");
        insertDefaultAssignmentOptions("Car2Car-Energy-Sharing",
"Car2Car-Energy-Sharing", oc);

        oc.doRegister("device.Car2Car.parameter", new Option_Float(0.0));
        oc.addDescription("device.Car2Car.parameter", "Car2Car-Energy-Sharing",
"The Car2Car-Energy-Sharing Device");
}

Since my class MSDevice_Car2Car_Energy_Sharing extends MSDevice_Battery I
would assume that would return the parameter of MSDevice_Battery. When I
have that, I assume its possible to trigger my method with getParameter? (is
this best practice anyway?). I appreciate any help




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