Tool Open source
Dalaran is an Apache-2.0 robotics-focused observability and visualization stack for recording, replaying, and inspecting multimodal time-series data such as ROS 2 topics, LiDAR sweeps, camera streams, IMU readings, and TF transforms on a synchronized timeline. It is a hard fork of Rerun, uses an Arrow-backed columnar chunk store, renders synchronized 2D and 3D views, and exposes recorded data as dataframes for computation. The project supports Python, Rust, and C++ SDKs, a viewer and CLI, ROS 2 data, Rosbag 2 and MCAP replay, existing Rerun .rrd recordings, and Dalaran .dlr recording files with saved .dbl blueprints; recordings can be written to files or streamed to a viewer or remote catalog.
1 use taken from transcripts — each links to the moment in the video.
A robotics-focused fork of Rerun for recording and inspecting multimodal time series on a synchronized timeline. It handles ROS 2 topics, cameras, IMU data, transforms, Rosbag 2 and MCAP replay, and portable recording bundles.
1 in the library.