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概述 ​

前面的课程中，专门学习过 高德API 如何使用，通过 高德API 的 路径规划2.0 的接口，可以获取到运动轨迹的经纬度坐标点集合，这样就可以方便的与Cesium结合使用。

路径规划2.0：https://lbs.amap.com/api/webservice/guide/api/newroute

javascript
const GD_TOKEN = 'fd7a0e4975078b5d697d478286ce46a8'
const origin = '116.310003,39.991957'
const destination = '116.434446,39.90816'
const url = `https://restapi.amap.com/v5/direction/driving?key=${GD_TOKEN}&origin=${origin}&destination=${destination}&show_fields=polyline`
const drivingData = []

const response = await fetch(url)
const data = await response.json()

data.route.paths[0].steps.forEach((step) => {
  const result = step.polyline.split(';').map((item) => {
    const [lng, lat] = item.split(',')
    return {
      longitude: Number(lng),
      latitude: Number(lat),
      height: 0
    }
  })
  drivingData.push(...result)
})
/次