Google地图如何运作？ [英] How does Google Maps work?

问题描述

谷歌地图背后的技术名称是什么？它允许服务器只发送用户请求的地图部分以提高性能，并且是否有任何图书馆可以处理这个问题？

解决方案

该技术一般可以描述为地图服务器。地图服务器从覆盖整个地球的大量预先生成的地图平铺图像生成所请求位置的地图。地图服务器可以覆盖来自其他数据库的数据。地图查看器客户端和地理数据库的组合传统上称为地理信息系统（GIS）。

任何人都可以使用 Google Maps API 。还有一个很好的开源地图服务器（称为 MapServer ）如果你想部署你自己的地图服务器。

What is the name of the technology behind Google Maps which allows the server to send only the part of the map requested from the user to enhance the performance, and is there any library to handle this?

解决方案

The technology could generically be described as a map server. The map server generates a map for the requested location from a large set of pre-generated map tile images covering the entire planet. The map server may overlay data from other databases on top of this. The combination of a map viewer client and geographical database is traditionally called a Geographical Information System (GIS).

Anyone can write web applications that embed Google maps using the Google Maps API.There is also a fine open source map server (called MapServer) should you wish to deploy your own map server.

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