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1 | initial version |
You can start with the ROS Navigation Tutorials. More specifically, the Publishing Odometry Information over ROS tutorial addresses your question.
2 | No.2 Revision |
You can start with the ROS Navigation Tutorials. More specifically, the Publishing Odometry Information over ROS tutorial addresses explains how to publish odometry messages for a predefined movement. Normally you would use your question.sensors (e.g. encoders + imu) to determine the odometry.