[Java-player-users] Re: how to start P/S with java code?

[fly r. <roa...@ho...>]

Hi all,
I am sorry to send two more repearted messages to the server (e.g. 
"questions about using java code with simulator" and "how to use the 
simulator with java code"). Becasue i sent this thread the day before 
yesterday, but couldn't see any new one from the mailing list. So im so fool 
to send two more. Could the administrator cancel the two more ones please?
and i have one more question. when i ran the code as follow:
        PlayerClient player = new PlayerClient("localhost",6665);
        PositionInterface post = player.requestInterfacePosition(0, 
'r');	//a, r or w
        SimulationInterface simulation = 
player.requestInterfaceSimulation(0, 'r');
        player.runThreaded(-1, -1);
        //now loop this stuff...
        player.readAll();
        //update the global data so every behaviour can access it

        simulation.set2DPose("pioneer", 1000, 1000, 0);
        simulation.get2DPose("pioneer");

        int currentX = simulation.getSimulationPose2D().getX();
        int currentY = simulation.getSimulationPose2D().getY();
        int currentYaw = simulation.getSimulationPose2D().getTheta();

        System.out.println("Position  (" + currentX + "/"+ currentY + ") 
Angle " +
                "is " + currentYaw + "   ");
and the result is like this:
       [PlayerClient] : Got response for device 4(stage) with access: r
       [PlayerClient] : Got response for device 31(stage) with access: r
       Exception in thread "main" java.lang.NullPointerException
              at robotsimulation.Test1.main(Test1.java:36)
       [Simulation] : Handling NAR of size = 0

it seems the currentX, Y, Yaw don't get any return value from  
getSimulationPose2D(). but i want to get the value of pose of the robot in 
the simulator. any one get ideas?
thanks very much

Jun

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