Main Content

restart

Restart driving scenario simulation from beginning

Description

restart(scenario) restarts the simulation of the driving scenario, scenario, from the beginning. The function sets the SimulationTime property of the driving scenario to 0.

example

Examples

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Create a driving scenario in which a vehicle travels down a straight, 25-meter road at 20 meters per second. Plot the scenario.

scenario = drivingScenario('SampleTime',0.1);

roadcenters= [0 0 0; 25 0 0];
road(scenario,roadcenters)
ans = 
  Road with properties:

           Name: ""
         RoadID: 1
    RoadCenters: [2x3 double]
      RoadWidth: 6
      BankAngle: [2x1 double]
        Heading: [2x1 double]

v = vehicle(scenario,'ClassID',1);

waypoints = [5 0 0; 20 0 0];
speed = 20; % m/s
smoothTrajectory(v,waypoints,speed)

plot(scenario)

Figure contains an axes object. The axes object with xlabel X (m), ylabel Y (m) contains 3 objects of type patch, line.

Run the simulation and display the location of the vehicle at each time step.

while advance(scenario)
    fprintf('Vehicle location: %0.2f meters at t = %0.0f ms\n', ...
            v.Position(1), ...
            scenario.SimulationTime * 1000)
end
Vehicle location: 7.00 meters at t = 100 ms
Vehicle location: 9.00 meters at t = 200 ms
Vehicle location: 11.00 meters at t = 300 ms
Vehicle location: 13.00 meters at t = 400 ms
Vehicle location: 15.00 meters at t = 500 ms
Vehicle location: 17.00 meters at t = 600 ms
Vehicle location: 19.00 meters at t = 700 ms

Figure contains an axes object. The axes object with xlabel X (m), ylabel Y (m) contains 3 objects of type patch, line.

Restart the simulation. Increase the sample time and rerun the simulation.

restart(scenario);
scenario.SampleTime = 0.2;

while advance(scenario)
    fprintf('Vehicle location: %0.2f meters at t = %0.0f ms\n', ...
            v.Position(1), ...
            scenario.SimulationTime * 1000)
end
Vehicle location: 9.00 meters at t = 200 ms
Vehicle location: 13.00 meters at t = 400 ms
Vehicle location: 17.00 meters at t = 600 ms

Figure contains an axes object. The axes object with xlabel X (m), ylabel Y (m) contains 3 objects of type patch, line.

Input Arguments

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Driving scenario, specified as a drivingScenario object.

Version History

Introduced in R2017a