custom-rviz-overlay

To display real-time telemetry on an RViz viewport, you can use ROS 2 Python nodes that subscribe to BatteryState and Twist messages, then publish OverlayText data to render 2D status indicators directly on the 3D view.

RViz overlays are 2D text and status indicators rendered directly on the RViz viewport. You need them during development, SITL simulations, and field deployments when operators require at-a-glance telemetry for battery, velocity, and navigation state.

Yes, displaying RViz overlays requires rviz_2d_overlay_plugins and OverlayText message support to render the 2D text and status indicators directly on the viewport for your ROS 2 robot telemetry.

Yes, you can use ROS 2 overlays to create on-robot dashboards for field deployments. By running BatteryOverlayPublisher and DashboardOverlay nodes, you can monitor real-time navigation state and telemetry at a glance.

To set up RViz configuration for navigation and battery overlays, launch the BatteryOverlayPublisher and DashboardOverlay nodes, then add the rviz_2d_overlay_plugins overlays to your RViz configuration file.

The best way to monitor nav status within 3D visualization is using RViz overlays. They subscribe to Nav status topics and render the telemetry as 2D text directly on the viewport, eliminating the need to switch windows.