Cant pass laserscan massage betwene functions iside a class?(read last replay)

Course Support ROS Basics In 5 Days (C++)
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Hi Ziga,

Quite an interesting monologue!

I can’t help much with the C++ part, but there’s something missing in your code, which seems to be causing your head to spin() :smiley::

You need to include ros::spin() in your class init method, where your subscriber and publisher are initialized.

ros::spin() ensures that your subscriber messages arrive. It seems your messages were not arriving; with spin() included, you shouldn’t need to publish to the laser_scan message manually, neither do you need spinOnce().

ros::spin() and rospy.spin() are different, and here lies the difference. See this post for details: