Re: [Java-player-users] Regarding javaclient3 execution in eclipse

[Vitalijs K. <vit...@gm...>]

Hi!

Could you please describe in details what exactly you understand with
successful and unsuccessful code execution. Where exactly your code stops
or does something unexpected?
I have used something very similar to your code [1], with only difference
that I had small delay between subsequent data readiness checks.

There is one feature worth to mention about.
>From source code of Ranger (and most others) interface:
...
public boolean isDataReady () {
  if (readyPrdata) {
    readyPrdata = false;
    return true;
  }
  return false;
}
...

This function returns true only once per data reading cycle.
In that sense your code is a bit redundant
  System.out.println(rngi.isDataReady ()); // if this will return true
  while (!rngi.isDataReady ()); // then this will wait till next data
exchange tick.

[1]
https://github.com/Vitaljok/mrs-optimization/blob/master/robot-sim/rkv/rkv_1/src/rkv_1/Main.java


Vitālijs

2015-11-27 18:18 GMT+02:00 Vikas Chauhan <vik...@gm...>:

> Hi,
>      I am executing a Player Stage program in java using javaclient3 on
> eclipse. I have attached the java sample program .On my ubuntu system
> somtimes this code executes and manytimes not( like if i try 9 times it
> executes only one time)
> I think The main problem is with
> while (!rngi.isDataReady ());
> method , for sonar it is not able to executes but it executes successfully
> for laser.
> by luck it gets values of sonar sometime (once in 9 time) , I want to know
> the reason why it is happening. I think isDataReady() method has some
> problem or javaclient3 jar has some problem.
>   while (!rngi.isDataReady ());
>   sonarValues = rngi.getData ().getRanges ();
> Kindly suggests the solution because this code is excuting successfully
> everytime on my friend's ubuntu system with same configuration but on my
> system it is not executing. We have invested 4 days to know the reason why
> it is happening that it is executing randomly very few time on my system
> but on my friend's system is is executng successfully.
>
>
> Thanks and regards
> vikas chauhan
>
>
>
>
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