摘要
三维地理信息系统(3DGIS)是将GIS的空间查询、分析和决策功能与VR(虚拟现实技术)逼真的三维可视化功能有机地结合在一起,增强了GIS系统的可视化效果和三维空间分析能力。该文以防灾科技学院为研究对象,基于三维建模技术、计算机网络技术、虚拟现实技术和软件开发技术,利用HTML+JavaScript开发环境与SuperMap云GIS软件开发平台,采用MVC设计模式和面向对象开发方法,实现了防灾三维校园系统。本系统具有360度三维场景浏览、三维量算、POI查询定位功能和三维校园导航功能,三维校园比二维平面更直观形象,更逼近校园的实景,具有一定的应用价值。
The three-dimensional geographic information system(3DGIS) is the GIS spatial query, analysis and decision function and VR(virtual reality) 3D visualization of organic living together, enhance the visual effect of GIS system and 3D spatial analysis ability. Taking the Institute of Disaster Prevention as the research object, the 3D modeling technology, computer network technology, virtual reality technology and software development technology based on HTML+JavaScript, the development environment and SuperMap cloud GIS software development platform, using MVC design patterns and object-oriented development method, realized the 3D campus system of disaster prevention. The system has a 360 degree view three-dimensional scene, 3D measurement, POI query localization function and 3D campus navigation, 3D campus than 2D more visual image, closer to the campus scenery, has a certain application value.
出处
《电脑知识与技术（过刊）》
2014年第7X期4831-4833,共3页
Computer Knowledge and Technology
