View all turtles Turtlesim under ROS in Ubuntu18.04 LTS

Table of contents

1. Run the little turtle emulator

2. Locations of all baby turtles:

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1. Run the little turtle emulator

When I first came into contact with the little turtle, I often used the following commands in different windows to run the little turtle:

roscore                         
rosrun turtlesim turtlesim_node
rosrun turtlesim turtle_teleop_key

However, the baby turtles are different every time they appear. for example:

Another example:

In fact, there are only a few little turtles in total, and they just randomly call different turtles each time.

2. Location of the little turtle:

In the root directory, search the path: /opt/ros/melodic/share/turtlesim/images. You can find all the little turtles:

/opt/ros/melodic/share/turtlesim/images