微信小程序----原生API实现【到这里去（目的地）】路线规划

<map class="rui-rtpn-map" markers="{{markers}}" longitude="{{longitude}}" latitude="{{latitude}}">
  <cover-view class='rui-rtpn-location' bindtap='openLocation' style='background:#fff url({{iconPath.iconLocation}}) no-repeat center center/10vw 10vw;'></cover-view>
</map>

// pages/map/map.js
const iconPath = require('../../utils/iconPath.js');
Page({
  data: {
    latitude: 30.5427,
    longitude: 104.0527,
    markers: [{
      id: 1,
      latitude: 30.5427,
      longitude: 104.0527
    }]
  },
  onLoad () {
    this.setData({ iconPath: iconPath})
    this.openLocation();
  },
  openLocation(){
    wx.openLocation({
      latitude: this.data.latitude,
      longitude: this.data.longitude,
      scale: 28,
      name: '西部电信中心',
      address: '益州大道1666号'
    })
  }
})

.rui-rtpn-map{
  width: 100vw;
  height: 100vh;
  position: relative;
}
.rui-rtpn-location{
  width: 15vw;
  height: 15vw;
  border-radius: 50%;
  position: absolute;
  bottom: 12vw;
  right: 2vw;
  border: 1px solid #1296db;
  z-index: 10;
}