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

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

Hi all,
    I just finished a java code and now want to run it with P/S. But i have 
go some confusions about it. My target is to move the a robot to a specific 
point in a map.
    my code is like this:
          //constructor
          PlayerClient robot = new PlayerClient("localhost", 6665);
          PositionInterface position = robot.requestInterfacePosition(0, 
'p');
          SimulationInterface simulation = 
robot.requestInterfaceSimulation(0, 's');
          MapInterface map = robot.requestInterfaceMap(0, 'm');

          PlayerSimulationPose2D simulationPosition.setName(NAME);
          position.setSpeed(100, 30);
          position.setPosition(x, y, yaw);

          //run loop
          robot.readAll();
          simulation.set2DPose(NAME,  start.getX(), start.getY(), 
start.getYaw());
          searchAlgorithm();
Questions are these:
1. i don't understand where the map comes from and how the PlayerClient gets 
the data of map. does it come from World file? if yes, how the MapInterface 
gets the data? do i need to write the code for reading the data from World 
file?

2. what is the difference between PositionInterface and 
PlayerSimulationPose2D? since from the API, i think i can use 
PositionInterface and PlannerInterface to move the robot to a specific 
point, why PlayerSimulationPose2D?

I am a beginner to the robot simulation. So there are such naive questions. 
Any one get some idea?
thanks alot

Jun

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