How to use isDone frag?

Does isDone frag have the ability to end the episode?

I want to do trainning of simplependulum which can move in specific space.

The space which I hope is X_Position > 0 && Y_Position>0 ,and AngularVelocity < 0.

Is it possible to end the episode when the pendulum moves outside this range using by isDone frag?

function [NextObservation, Reward, IsDone, LoggedSignals] = myStepfunction(Action,LoggedSignals,SimplePendulum)

        % prestate before moving
        
        statePre = [0;0];
        statePre(1) = SimplePendulum.Theta;
        statePre(2) = SimplePendulum.AngularVelocity;
        
       
        
       
      
        
        IsDone = false;
       
        % updating state 
        SimplePendulum.pstep(Action);
        
       
        
       
        
        
         
         
         
        % get state's information
        state = [0;0];                                  
        state(1) = SimplePendulum.Theta;                % Angular
        state(2) = SimplePendulum.AngularVelocity;      % Angular Velocity
        
        X_state_Position = sin(state(1));
        Y_state_Position = -cos(state(1));
        
        
        % difference between ball distance and target point
        
         
        Ball_Target = 10;
        Ball_Distance = X_state_Position + (-state(2))* sqrt(2*abs(Y_state_Position)/9.8);
        R = -abs(Ball_Distance -Ball_Target);
        
       % here is problem ↓
       % I want to get the information in spesific space, (X_Position > 0,
       % && Y_Positin > 0, && State(2) < 0)
        
         if (state(2)) > 0  && (Y_state_Position > 0) && ((abs(state(2))) > 10) 
            IsDone = true;
         end
        
        
        
        
        
        LoggedSignals.State = state;                   
       
        NextObservation = LoggedSignals.State;
          
     
           Reward = + R;