SetPhysicsProperties
This is a ROS service definition.
Source
# sets pose and twist of a link. All children link poses/twists of the URDF tree will be updated accordingly
float64 time_step # dt in seconds
float64 max_update_rate # throttle maximum physics update rate
geometry_msgs/Vector3 gravity # gravity vector (e.g. earth ~[0,0,-9.81])
gazebo_msgs/ODEPhysics ode_config # configurations for ODE
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bool success # return true if set wrench successful
string status_message # comments if available