Google Maps API 版本差异 [英] Google Maps API Version difference

问题描述

我正在尝试显示两个地方之间的路线，我想使用

为 Google 地图编码折线

levels 字符串的编码算法

我们如何解决上述问题?
请参考这三个答案链接，以解决您的问题:

• Android - 绘制两个之间的路线图地理点
• https://stackoverflow.com/a/10268114/1472665
• https://stackoverflow.com/a/11357351/1494309

I'm trying to show route between two places, I want to used Google Places API V3 for route steps between two points.

---

Before I was using Old Google Maps API, and following request gives perfect result:

http://maps.google.com/maps?f=d&hl=en&saddr=19.5217608,-99.2615823&daddr=19.531224,-99.248262&ie=UTF8&0&om=0&output=kml

Output :

---

Now I try to replace this with New Google Maps API, and following request gives wrong result, In both case i'm using same source and destination, but result gives different behavior on Google Map:

http://maps.googleapis.com/maps/api/directions/json?origin=19.5217608,-99.2615823&destination=19.531224,-99.248262&sensor=false

My problem is that, New Google Maps API return less number of steps between source and destination therefore the route not showing perfect on Google Map.

Please help to resolve this problem for New Google Maps API v3.

Thanks in advance.

解决方案

What's new in Google Map API v3?
Google Maps Directions API v3 for Android provide routes in the Encoded Polyline Algorithm Format.

What we must have to do?
We must have to decode this Polyline for showing exact Map

How we decode this encoded Polyline provided by Google Directions API v3?
Please Refer these three links to more clear with encoded Polyline returns from the Google Maps Directions API v3

• Decoding polylines from google maps direction api with java
• Encoding polylines for Google Maps
• The encoding algorithm for the levels string

How we can resolve problem in above question?
Please refer these three answer links, that solves your problem :

• Android - Draw route map between two geopoints
• https://stackoverflow.com/a/10268114/1472665
• https://stackoverflow.com/a/11357351/1494309

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