ROS Programming: Building Powerful Robots

Configuring the debugging level of a particular node

By default, only messages of INFO or higher levels are shown. ROS uses these levels to filter the messages printed by a particular node. There are many ways to do so. Some of them are set at the time of compilation and some messages aren't even compiled below a given verbosity level; others can be changed before execution using a configuration file, and it is also possible to change the logging level dynamically using the rqt_console and rqt_logger_level tools.

It is possible to set the logging level at compile time in our source code, but this is very uncommon and not recommended as it it requires us to modify the source code to change the logging level.

Nevertheless, in some cases we ...