缺陷管理在国土资源信息系统维护中的应用研究

本文分析了国土资源信息化系统建设维护中存在的问题,阐述了国土资源缺陷管理的内涵,通过设计一种合理的缺陷处置流程和缺陷系统实现模式,解决国土资源信息化建设中系统维护遇到的困难,提升了国土资源信息化的整体服务水平。

Research on 3D Modeling Data Organization and Algorithm over the Mine Tunnel

As an important part of mine, 3D Tunnel model based on virtual reality technique plays an important role in mine exploitation and construction, which can supply visual reality and decision support for mining engineering, work safety, construction, people and equipment management. The accuracy of model directly affects the quality of mine engineering and ability of exploiting. This paper provides a method of organizing modeling data, gives the key algorithms about 3D tunnel modeling including section feature points algorithm, smoothing algorithm and cross over modeling algorithm for straight wall vaulted tunnel. With experimental data and OGRE technology, a 3D tunnel model was auto built successfully. The result verified the effectiveness and advantage of the data organization and algorithms.