Align empty world with upstream

robotology / gym-ignition

Framework for developing OpenAI Gym robotics environments simulated with Ignition Gazebo

https://robotology.github.io/gym-ignition

GNU Lesser General Public License v3.0

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Align empty world with upstream #336

Closed diegoferigo closed 3 years ago

diegoferigo commented 3 years ago

This PR aligns with upstream's default.sdf the empty world that is used when no sdf if passed to the GazeboSimulator. In our case there is no ground.