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Topic Graph

Display a graph visualization of the current node and topic topology.

To use this panel, you must be connected to a live ROS system via a native or Rosbridge connection. Use the native connector for best results.

The graph will show nodes, topics, and services. Nodes implement services, and either subscribe or publish to topics. The direction of the graph's arrows will denote whether a node is subscribing to or publishing a topic.

  • Nodes – blue rectangles
  • Topics – purple diamonds
  • Services – red rectangles

User interactions

If any items in the graph are overlapping, click and drag to reposition them for easier viewing.

topic graph panel

Use the available controls to accomplish the following:

  • Zoom fit – Fit the graph within the viewport

  • Orientation – Toggle the graph's orientation

  • Showing services / Hiding services – Toggle the visibility of the services

  • Showing x topics – Toggle between displaying different groups of topics

    topic groups to toggle


  • Scroll – Zoom in and out