java-player-users

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

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

Hi,
   I tried "isPose2DReady ()", and it returned false. so there wasn't data 
come from Stage to the SimulationInterface. how can i get the data from the 
Stage?
another problem is like this:
        set2DPose("pioneer", 1000, 1000, 0);
        .......
        set2DPose("pioneer", 2000, 2000, 0);
the first set method works, but the second one doesn't. how can i make it 
work?

Another problem is about the mapInterface
when i ran the code:
        PositionInterface post = player.requestInterfacePosition(0, 'r');
        SimulationInterface simulation = 
player.requestInterfaceSimulation(0, 'r');
        MapInterface map = player.requestInterfaceMap(0, 'e');
with the .cfg file like this;
       driver
       (
       name "stage"
       provides ["simulation:0"]
       plugin "libstage"
       worldfile "Test1.world"
       )
       # robot 0
        driver( name "stage"  provides ["6665:position:0"] model "p0" )
        driver( name "stage"  provides ["6665:sonar:0"] model "p0" )
        driver( name "stage"  provides ["6665:laser:0"] model "p0" )
        driver( name "stage"  provides ["6665:blobfinder:0"] model "p0" )
        driver( name "stage"  provides ["6665:fiducial:0"] model "p0" )
and the world file like this:
       map(
      size [15 15]
      bitmap "bitmaps/cave.png"
      bitmap_resolution 0.05
      boundary 3
      )
i got error:
        [PlayerClient] : Got response for device 4(stage) with access: r
        [PlayerClient] : Got response for device 31(stage) with access: r
        [PlayerClient] : Got response for device 42() with access: e
[PlayerClient] : Error was replied from the server!

i think maybe i didn't write the right .cfg file. could you tell me if the 
.cfg file is correct, and if wrong, what can i do?

thank you very much

Jun

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

[Radu B. R. <ru...@in...>]

On Fri, Aug 19, 2005 at 10:08:58PM +0100, fly roadto wrote:
> Hi,
>   I tried "isPose2DReady ()", and it returned false. so there wasn't data 
> come from Stage to the SimulationInterface. how can i get the data from the 
> Stage?

You need to wait for it until it becomes ready. In order for it to be ready
though, you need to call get2DPose () first. Okay, I know, it's a bit
complicated, but this is the way the Player server really works. First you
send a request, then wait for the reply and then get the data. Example:
	get2DPose ();	// send a PLAYER_SIMULATION_GET_POSE2D request
	while (!isPose2DReady());	// wait until you get a reply
	// and get the actual pose
	PlayerSimulationPose2D pose = getSimulationPose2D();

Remember that you need to add the object's name in front of the above
methods.
 
> another problem is like this:
>        set2DPose("pioneer", 1000, 1000, 0);
>        .......
>        set2DPose("pioneer", 2000, 2000, 0);
> the first set method works, but the second one doesn't. how can i make it 
> work?

I cannot test it right now, but that sounds weird. Are you executing them
one after another? Is 2000 somewhat outside your map?

> Another problem is about the mapInterface
> when i ran the code:
>        PositionInterface post = player.requestInterfacePosition(0, 'r');
>        SimulationInterface simulation = 
> player.requestInterfaceSimulation(0, 'r');
>        MapInterface map = player.requestInterfaceMap(0, 'e');
> i got error:
>        [PlayerClient] : Got response for device 4(stage) with access: r
>        [PlayerClient] : Got response for device 31(stage) with access: r
>        [PlayerClient] : Got response for device 42() with access: e
> [PlayerClient] : Error was replied from the server!

You need to change 'e' into 'r'. 'e' stands for error, 'r' for read.
Example: 
	MapInterface map = player.requestInterfaceMap(0, 'r');

> thank you very much

No problem mate. Cheers!

> Jun

Yours sincerely,
Radu Bogdan Rusu
--
| Radu Bogdan Rusu | http://www.rbrusu.com
| Intelligent Autonomous Systems Group
| Technische Universitaet Muenchen