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You are trying to remap the content of the message not the topic, which you can't do directly.

You'll need to write a simple node that subscribes to gazebo/model_states and publishes the desired topics.

Another option, if you don't want to write the simple node, would be to try to use the topic-tools/transform node.

You are trying to remap the content of the message not the topic, which you can't do directly.

You'll need to write a simple node that subscribes to gazebo/model_states and publishes the desired topics.

Another option, if you don't want to write the simple node, would be to try to use the topic-tools/transform node.