javascript - 如何从 DirectionsResult 对象中提取所有经纬度坐标(Google map Javascript 方向 API)

Question

在 official documentation据说:

The DirectionsResult contains the result of the directions query, which you may either handle yourself, or pass to a DirectionsRenderer object, which can automatically handle displaying the result on a map

我不希望使用 DirectionsRenderer 对象在 map 上显示路线，但我需要事先从 DirectionsResult 对象访问经纬度坐标。

有什么办法可以做到这一点吗？

Answer 1

根据文档，DirectionsResult 包含 routes 属性，该属性是 DirectionRoute 对象的数组。每条路线都有包含坐标的legs。您应该能够迭代属性来访问每条腿的经纬度。

/**
 * Assuming you have a directions result
 * assigned to const myDirectionsResult
 */

// es6 syntax

// const myDirectionsResult = ...

const legCoordinates = [];

myDirectionsResult.routes.forEach(route => {
  route.legs.forEach(leg => {
    const {start_location, end_location} = leg;

    legCoordinates.push({ start_location, end_location });
  });
});