多引擎地图服务组件的开发

The Development of Multi-engine Map Service Components

文章着重介绍了多引擎地图服务组件的整体设计,详细描述了面对不同后台代码、不同数据库、不同地图服务时,数据如何转换和存储。并以谷歌地图和51地图为例展示了地图服务API的调用方法,体现了谷歌地图在卫星图片实景地图方面的优势以及51地图在公交导航方面的特色。具体设计中涉及了JavaScript、API引用、HTML等技术,尤其是对JavaScript中构造对象、设置属性、添加监听器、事件服务等方面做了详细的描述。

This article focuses mainly on overall design of multi-engine map services components, describes detailed data con- version and storage facing different background code, different databases and different map services. Taking Google Maps and 51 Maps for example, shows how to call API and advantages of Google Maps in satellite real-image and 51 map in bus navigation. Spe- cific design involves JavaScript, API reference, HTML and other technologies, especially describes construction objects in JavaScript, setting attributes, adding listener, event services.