Function vecToAzEl

shared/src/aim.ts:90–95

(v: Vec3)

/** ENU unit vector -> world az/el (degrees). */
export function vecToAzEl(v: Vec3): { azDeg: number; elDeg: number } {
  return {
    azDeg: norm360(Math.atan2(v[0], v[1]) / DEG),
    elDeg: Math.asin(Math.max(-1, Math.min(1, v[2]))) / DEG,
  };
}

/** Great-circle angle between two look directions, degrees. */
export function angularSepDeg(