additional information

I insert log to confirm what happened after getparamer() as following:

  get_parameter("max_particles", max_particles_);
  get_parameter("min_particles", min_particles_);
std::cerr << "-------------------------------------------------------" << std::endl;
std::cerr << "max_particles:" << max_particles_ << std::endl;
std::cerr << "min_particles:" << min_particles_ << std::endl;
std::cerr << "-------------------------------------------------------" << std::endl;

and I get the log following:

[amcl-7] -------------------------------------------------------
[amcl-7] max_particles:2000
[amcl-7] min_particles:821708790
[amcl-7] -------------------------------------------------------

it's quiet strange that the get_parameter() read a wrong value.

from navigation2.

-67897767946

That is out of bounds of what an int can represents (+/-2147483647), so my guess is that its a wrap around issue. That is undefined behavior so getting a weird number seems to track for me.

from navigation2.

uh of course you're right. I missed such situation. ^_^

from navigation2.