How to generate random vehicles during simulation in driving scenario ?

Question

Muhammad Iqbal 2020-9-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/597718-how-to-generate-random-vehicles-during-simulation-in-driving-scenario

编辑： Raynier Suresh 2021-2-15

when I follow the web example here Spawn and Despawn ,to genarte the non ego vehicle in driving simulation ,the error occurs

as

Error using driving.scenario.mixin.PropertiesInitializableInConstructor (line 20)
'EntryTime' is not a valid property name for driving.scenario.Actor
Error in driving.scenario.Actor (line 37)
           obj@driving.scenario.mixin.PropertiesInitializableInConstructor(varargin{:});
Error in drivingScenario/actor (line 161)
a = driving.scenario.Actor(obj, actorID, varargin{:});
Error in Untitled11 (line 25)
nonEgoactor2 = actor(scenario,'ClassID',1, ...

why this error occur ,is the EntryTime nad ExitTime is not a valid attribute for actors or something else?

any sugestion to run this example and genarate the random nonego vehicles in the drivingscenario will be appreciated.

Regards

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Muhammad Iqbal 2020-9-25

在 MATLAB Online 中打开

Hi thansk for your reply;

I want to genertae the nonego vehicel randomly during simulation by spawn and despwn concept to that i follow this code :

scenario = drivingScenario('StopTime',3);
roadCenters = [0 1 0; 53 1 0];
laneSpecification = lanespec([1 1]);
road(scenario,roadCenters,'Lanes',laneSpecification);
roadCenters = [20.3 33.4 0; 20 3 0];
laneSpecification = lanespec(2);
road(scenario,roadCenters,'Lanes',laneSpecification)
%%%%%%%%%%Ego Vehicle%%%%%%%%%%%%%%%%%%
egoVehicle = vehicle(scenario,'ClassID',1, ...
                    'Position',[1.5 2.5 0]);
waypoints = [2 3 0; 13 3 0;
            21 3 0; 31 3 0;
            43 3 0; 47 3 0];
speed = 15;
trajectory(egoVehicle,waypoints,speed)
%%%%%%%%non Ego Vehicle%%%%%%%%%%%%%%%
car = vehicle(scenario,'ClassID',1, ...
                'Position',[22 30 0],'EntryTime',0.8,'ExitTime',2);   
waypoints = [22 30 0; 22 23 0;
            22 13 0; 22 7 0;
            18 -0.3 0; 12 -0.8 0; 3 -0.8 0];
speed = 35;
trajectory(car,waypoints,speed)

here is the output from version command:

Error using driving.scenario.mixin.PropertiesInitializableInConstructor (line 20)
'EntryTime' is not a valid property name for driving.scenario.Vehicle
Error in driving.scenario.Actor (line 37)
           obj@driving.scenario.mixin.PropertiesInitializableInConstructor(varargin{:});
Error in driving.scenario.Vehicle (line 16)
            obj@driving.scenario.Actor(scenario, id, varargin{:});
Error in drivingScenario/vehicle (line 167)
v = driving.scenario.Vehicle(obj, actorID, varargin{:});
Error in Untitled11 (line 18)
car = vehicle(scenario,'ClassID',1, ...
    

thanks

Rik 2020-9-25

在 MATLAB Online 中打开

That is not the output of the version command. Put the line below in your command window and paste the result in a comment.

clc,version

Muhammad Iqbal 2020-9-28

在 MATLAB Online 中打开

here it is :

ans =
    '9.8.0.1323502 (R2020a)'
thanks

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Answer 1

Raynier Suresh 2021-2-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/597718-how-to-generate-random-vehicles-during-simulation-in-driving-scenario#answer_623707

编辑：Raynier Suresh 2021-2-15

Hi, The Actor Spawn and Despawn feature is available from the R2020b version. Thus in R2020a the "EntryTime" and "ExitTime" property will not be there, that is the reason for the error.

The R2020a documentation for the vehicle function is https://www.mathworks.com/help/releases/R2020a/driving/ref/drivingscenario.vehicle.html