Re: [Java-player-users] setPosition message format

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

John, that sounds about right, but before I start digging and debugging, would it be 
possible to try it again using HEAD (CVS) Player/Stage and SVN Javaclient ?

There were quite a few bugs that were fixed in the repository since the last official 
version, and it might be that yours was fixed too.

If it still doesn't work, I'd be more than happy to fix it. Now if I could only make the 
day 48h instead of 24h, maybe I could write some documentation for it as well. ;)

Cheers,
Radu.

John Oliver wrote:
> I have been having some trouble with getting setPosition to work on a
> Position2DInterface.  (Player/stage 2.0.1 and Javaclient 2.0.1)
> 
> Taking a quick(well perhaps not that quick) look at the code in player the
> pack function (player_position2d_cmd_pack) it appears to look for both a
> position command and a velocity in the message:
> 
> ...
>   if(xdr_player_pose_t(&xdrs,&msg->pos) != 1)
>     return(-1);
>   if(xdr_player_pose_t(&xdrs,&msg->vel) != 1)
>     return(-1);
>   if(xdr_u_char(&xdrs,&msg->state) != 1)
>     return(-1);
> ...
> 
> while the java version only sends the
> position(Position2DInterface.setPosition), and from what I can tell this is
> leading to my "warning : decoding failed on message to 4:1 with type 2"
> messages.
> 
> Have I made a mistake here or is this something to be patched?  And is it a
> player problem or JavaClient?  My instinct is that player should not be
> looking for a velocity in a position command however I do not entirely
> understand the P/S message formats and wanted confirmation that this was the
> case(or not).
> 
> thanks
> 
> John

-- 
| Radu Bogdan Rusu | http://rbrusu.com/
| http://www9.cs.tum.edu/people/rusu/
| Intelligent Autonomous Systems
| Technische Universitaet Muenchen