removeObserver

Remove observer from scenario simulation

Since R2022a

Syntax

removeObserver(ScenarioSim,ObserverName)

Description

removeObserver(ScenarioSim,ObserverName) removes the observer named ObserverName from the ScenarioSimulation object ScenarioSim.

Examples

Remove Observer from Scenario Simulation

1. Create ScenarioSim, a ScenarioSimulation object.

   rrApp = roadrunner("C:\RoadRunnerProject");
   openScenario(rrApp,"TrajectoryCutIn");
   ScenarioSim = createSimulation(rrApp);
   

2. Create the class mySysObserver, which inherits from matlab.System base class. The mySysObserver class represents an observer.

   classdef mysysObserver < matlab.System
   
   properties(Access=private)
   % …
   end
   methods
   % constructor for the System object
   function obj = mysysObserver()
   end
   end
   
   
   methods(Access = protected)
   
   %reset the values
   function resetImpl(obj)
   obj.mScenarioSimObj = Simulink.ScenarioSimulation.find("ScenarioSimulation", ...
     "SystemObject", obj);
   obj.mScenarioSimActorList = [];
   obj.mIsPacingTurnedOff = false;
   end
   
   
   
   % get the required parameter values
   function stepImpl(obj)
   mSimulationPace = obj.mScenarioSimObj.get("SimulationPace");
   mScenarioSimActorList = obj.mScenarioSimObj.get("ActorSimulation");
   end
   end
   end

3. Add the observer to the scenario.

   obsStatus = addObserver(ScenarioSim,"ReadPaceandActors","mysysObserver");
   

4. Remove the observer from the scenario.

   removeObserver(ScenarioSim,"ReadPaceandActors");

Input Arguments

ScenarioSim — RoadRunner Scenario simulation

ScenarioSimulation object

RoadRunner Scenario simulation, specified as a ScenarioSimulation object.

Example: removeObserver(ScenarioSim, "ObservingRedTruck")

ObserverName — Name of observer

string | character vector

Name of observer to remove, specified as a string or character vector.

Example: "ObservingRedTruck"

Version History

Introduced in R2022a