Function clamp

tracker/src/loop.ts:1182–1184

(v: number, lo: number, hi: number)

}

function clamp(v: number, lo: number, hi: number): number {
  return Math.min(hi, Math.max(lo, v));
}

/** SFO airport reference point (the project's anchor airport). */
const SFO_ARP = { lat: 37.6213, lon: -122.379 };