Function heron::rapier_plugin::rapier::ncollide::query::closest_points_ball_ball

pub fn closest_points_ball_ball<N>(
    center1: &Point<N, U3>, 
    b1: &Ball<N>, 
    center2: &Point<N, U3>, 
    b2: &Ball<N>, 
    margin: N
) -> ClosestPoints<N> where
    N: RealField, 

Proximity between balls.