pub fn time_breaks(dmin: f64, dmax: f64, m: usize) -> Vec<f64>Expand description
Round time-of-day breaks over [dmin, dmax] seconds (#408): the step is
the smallest of 1/2/5/10/15/30 s, 1/2/5/10/15/30 min, 1/2/3/6/12 h, 1 day
(or whole days) giving at most about m intervals.