Groot1Publisher: Visualize and Monitor BehaviorTree v4 trees in Groot 1
Open-source bridge enables live monitoring of BehaviorTree.CPP v4 execution in the free Groot 1 editor.
Developer Vishnu-Kr has released Groot1Publisher, an open-source tool that creates a crucial bridge between BehaviorTree.CPP v4 and the legacy Groot 1 visualization environment. This personal project addresses a specific pain point in the robotics community: after upgrading to BT.CPP v4, developers lost the ability to use Groot 1's simpler, fully free interface for real-time tree monitoring. The tool emerged from Vishnu-Kr's own workflow needs, providing a practical solution for those who prefer Groot 1's straightforward approach over the newer Groot 2 ecosystem.
The technical implementation is elegantly simple—Groot1Publisher acts as a drop-in replacement for Groot2Publisher, requiring zero modifications to existing source code while maintaining full functionality including SubTree support and port remapping. It's compatible with ROS 2 distributions Humble, Iron, and Jazzy, making it immediately useful for current robotics projects. This bridge effectively decouples visualization tool preference from behavior tree library version, giving developers architectural flexibility. As an open-source side project, its future development depends on community adoption and feedback, but it already solves a concrete interoperability problem in robot behavior tree development workflows.
- Drop-in replacement for Groot2Publisher with zero source code modifications required
- Full compatibility with ROS 2 Humble, Iron, and Jazzy distributions
- Enables live visualization of BehaviorTree.CPP v4 trees in the free Groot 1 editor
Why It Matters
Gives robotics developers architectural freedom to use preferred visualization tools without being locked into specific behavior tree library versions.