基于Google Earth API技术的网络虚拟校园建立

The Establishment of a virtual campus based on Google Earth API

虚拟校园就是将校园的实体(如图书馆、教室、办公楼)数字化后,呈现于计算机系统中,利用网络的跨地域性拓展学校功能的覆盖范围。传统的实现方式有GIS软件、VRML软件、以及FLASH软件等途径。然而Google Earth作为一款免费的、更强大的和更新型的数字地球平台,为我们解决这个问题提供了新的途径。本文利用Google Earth数字地球平台的基础地理框架和高分辨率遥感底图,使用Sketchup建模工具进行三维建筑群模型建立,经过投影和坐标变换处理,对辽宁工程技术大学虚拟校园进行了初步实现。将现实校园的各项资源数字化,形成一个数字空间,通过Google EarthAPI实现网络化的学校模型的虚拟漫游、鸟瞰和互动以及基本的查询功能。

Virtual campus is to digitize campus entities（such as libraries,classrooms,offices）,and to present it in a computer system.Use the network functions across the region to expand the coverage of the school.Traditional ways to achieve as using the GIS software,VRML software,FLASH software and so on.Google Earth as a free,more powerful and newer digital earth platform,however,provides us a new way to solve this problem.Using Google Earth Digital Earth platform frame and high-resolution remote sensing based on the geographical base map,using Sketchup modeling tools to model a three-building complex,through projection and coordinate transformation processing,Liaoning Technical University conducted a preliminary implementation.The establishment of a virtual campus,the campus can be real resources into a number of digital space,through the Google Earth API to achieve the school network model virtual tour and interactive bird＇s eye view and the basic search function.