การคำนวณบนพื้นผิวโลก (Spherical)

let meters = Spherical.computeDistanceBetween(from: from, to: to)
let heading = Spherical.computeHeading(from: from, to: to)

let ring = (0..<8).map { i in
    Spherical.computeOffset(origin: center, distance: 3_000.0, heading: Double(i) * 45.0)
}

let routeMeters = Spherical.computeLength(routePoints)

import { computeDistanceBetween, computeOffset, computeLength } from '@mapconductor/js-sdk-core';

const meters = computeDistanceBetween(from, to);

// วงแหวนห่างจากจุดกึ่งกลาง 3 กม. ทุก 45 องศา
const ring = Array.from({ length: 8 }, (_, i) =>
  computeOffset({ origin: center, distance: 3000, heading: i * 45 }));

const routeMeters = computeLength(routePoints);