如何从DirectionsResult对象中提取所有经纬度坐标（Google Maps Javascript路线API）

Question

In the official documentation it is said that :

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

I don't want the directions to be displayed on the map,using DirectionsRenderer object,but I need to access the lat-long coordinates from DirectionsResult object beforehand.

Is there any way in which I can do this ?

Answer 1

According to the documentation, a DirectionsResult contains routes property which is an array of DirectionRoute objects. Each route has legs which contain coordinates. You should be able to iterate through the properties to access the lat longs of each leg.

/**
 * 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 });
  });
});