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Normally, people don't run rviz on the computers on their robots. Instead, they use another laptop/desktop computer and set the environment variable ROS_MASTER_URI to the robot before running rviz. Example:

export ROS_MASTER_URI=http://turtlebot1:11311
rosrun rviz rviz

If you really need an alternative to rviz, see DimitriProsser's answer.

Normally, people don't run rviz on the computers on their robots. Instead, they use another laptop/desktop computer and set the environment variable ROS_MASTER_URI to the robot before running rviz. Example:

export ROS_MASTER_URI=http://turtlebot1:11311
rosrun rviz rviz

In the above example, the robot has the domain turtlebot1. You can also just use an ip address there or set up your hosts file as explained here.

If you really need an alternative to rviz, see DimitriProsser's answer.