ROS 2 tf2 turtle-pose transform broadcaster node

Official ROS geometry tutorial node that subscribes to a turtle pose and broadcasts a timestamped world-to-turtle transform, including a derived Euler-to-quaternion helper. It is an installed ROS 2 console entrypoint; the selected file has Apache-2.0 and BSD-2-Clause component terms.

ros2-tf2-broadcaster | Record version: source-87928f4e427dc4166e936e262d4f519c915faa1ff2d59998540bc0d4c96ac61f

Record JSON | Markdown | Pinned upstream source

Access

Read the pinned node, both component license terms, package declarations and setup registration before use. This source reference does not install or execute code.

For one verified inert file, use the installed CLI's inspect response fetch_source_args and append --project DIR --json. Source-file retrieval creates no environment and does not install or run the source.

Hub preparation adapter: false. Follow the upstream setup and invocation contract.

Source and license

Repository: https://github.com/ros/geometry_tutorials
Revision: 8e677416092ac97606a4a23256c815ba2fe762d4
Path: turtle_tf2_py/turtle_tf2_py/turtle_tf2_broadcaster.py
Source SHA256: 87928f4e427dc4166e936e262d4f519c915faa1ff2d59998540bc0d4c96ac61f
Source bytes: 3511
Original authors: Open Source Robotics Foundation, Inc., Matthew Brett, Christoph Gohlke
License: Apache-2.0 AND BSD-2-Clause
License scope: Selected file has an Apache-2.0 header, copyright 2021 Open Source Robotics Foundation, Inc., plus a quaternion helper derived from transforms3d under BSD-2-Clause, copyright 2009-2019 Matthew Brett and Christoph Gohlke. Both notice sets apply to their components; retain attribution, terms, disclaimers and applicable notices when redistributing. Pinned BSD terms: https://github.com/matthew-brett/transforms3d/blob/f185e866ecccb66c545559bc9f2e19cb5025e0ab/LICENSE . This is not a choice between licenses or blanket package/dependency clearance.
License SHA256: not independently verified
Hub commit: 0442ed7b99d78a970e92780a16df793e65039370

Artifact

{
  "kind": "code",
  "format": "python"
}

Requirements

{
  "python": null,
  "packages": [
    "Compatible ROS 2 rclpy environment with the context-manager init API used by this source",
    "tf2_ros",
    "geometry_msgs",
    "turtlesim_msgs",
    "numpy",
    "Installed turtle_tf2_py package exposing the reviewed console entrypoint"
  ],
  "hardware": [],
  "system": [
    "Configured ROS graph publishing the intended absolute /<turtlename>/pose topic",
    "Reviewed turtlename parameter, world/child frame naming and node clock"
  ],
  "notes": "The package is labeled version 0.7.0 at a Rolling-branch source pin; neither label establishes a tested ROS distribution, Python version or operating system. The turtlename parameter defaults to turtle. Pose callbacks subscribe to /<turtlename>/pose, stamp transforms with current node time, set parent frame world and child frame turtlename, copy x/y with z=0, convert yaw to quaternion and call sendTransform. Set intended parameters and provide matching pose publishers; this node alone does not create a complete following demo. The exact source imports turtlesim_msgs, whose availability must be resolved in the chosen environment. The copied helper's pinned transforms3d terms were reviewed, but mathematical correctness, clock/frame behavior, package installation and ROS graph compatibility were not executed or tested."
}

Invocation

{
  "entrypoint": "ros2 run turtle_tf2_py turtle_tf2_broadcaster",
  "notes": "Installed ROS 2 console command backed by the pinned setup.py registration turtle_tf2_py.turtle_tf2_broadcaster:main. The source defines main without a __main__ guard; direct python-file execution is not the declared node invocation. Starting the console entrypoint initializes rclpy and broadcasts transforms from incoming pose messages. The Hub supplies inert source metadata with no preparation/execution adapter and ran no ROS node, package installer or simulator. A single fetched Python file is insufficient."
}

Explicit compatibility

[]

Missing environment fields remain unknown. Discovery labels do not establish robot compatibility.

Evidence

Level: source_reviewed; runtime verification: not_run.

Complete ROS node read as inert text and Python AST parsed without import or execution. Source, package, setup and Apache license pins matched the complete immutable tree. A separate three-GET review checked the exact linked transforms3d tree, BSD-2-Clause license and Euler source/helper attribution. Component source terms and registered console entrypoint were reviewed; no runtime or physical-controller compatibility is claimed.

Source review and contributor reports do not establish task completion. Preserve upstream attribution and licenses.