gazebo_worlds_collection A comprehensive set of Gazebo models and worlds collected from several public projects. chessboard.world cafe.world car.world distribution_center.world factory.world farm.world hospital.world house.world inventory.world lawn.world neighborhood.world warehouse.world agriculture.world barrels.world canyonview_field.world inspection.world office_earthquake.world outdoor.world Credits 3DGEMS chaolmu RotorS TU Delft ARTI-Robots Clearpath Robotics Fetch Robotics mlherd