pub fn lead_from_tof(
speed_mps: f64,
angle_deg: f64,
tof_s: f64,
range_m: f64,
) -> LeadComponentsExpand description
Pure lead math from a known time of flight — shared by calculate_lead and the
PDF dope-card path (which already has per-row TOF from its sampled trajectory).
Uses the small-angle linear ratio lead/range, matching every other hold table.