VRGIS在森林资源管理中的研究与应用

随着信息技术和相关学科的发展及应用的不断深入,二维地理信息系统在森林资源管理中已得到了普遍的推广;但是随着森林资源管理信息化的进一步深入,用户提出了一个更高的要求,希望建立以林业空间数据为依托,用宽带网连接各分布式数据库,以虚拟现实技术为特征,具有三维显示和无边无缝多级分辨率浏览的开放式林业信息系统,用户可以根据自己的需要实时地调用和获取自己需要的信息1-2].

Research and Application of VRGIS in Forest Resources Managemen t

This paper is based on the theoretical research of visual reality geographical information system, includingthe acquisition of three-dimensional space model, three-dimensional data model, Digital Terrain Model, DigitalElevationModel and the exp ression of levels of detail of 3D space date and three-dimensional data visual exp ressionetc. Based the ArcEngine as tool, this paper created virtual reality topographical scene of Zijin mountain region,realized the interactive operation, just like Zooming in, Zooming out, Rotating, Roaming and Simulating, andSAconstructed a case of VRGIS on Zijin mountain region.