基于虚拟仿真技术的输电线路地形可视化算法优化  

Optimization of Terrain Visualization Algorithm for Transmission OLines Based on Virtual Simulation Technology

作　　者：刘广州[1] 于启万[1] 吴翔[1] 叶辉[1] 黄淮[2] 

机构地区：[1]国网宿州供电公司运维检修部,安徽宿州234000 [2]南京工程学院,江苏南京211167

出　　处：《电子科学技术》2016年第4期454-456,共3页Electronic Science & Technology

摘　　要：输电线路虚拟仿真需要提供足够真实的可视化场景以及各类信息进行查询、分析、处理和展现。本文首先针对以往算法在使用高精度DEM数据绘制地形时效率不高的问题,在宏观上采用四叉树构造地形数据,在微观上使用带特征线约束的Dealunya三角网构造地形;随后优化了数据结构的拓扑关系,并且通过误差嵌套球算法提高了三维地形的逼真度;最后,通过仿真试验分析,验证了系统在同样的运行环境中实现可视化效率明显提高。Transmission line operation management and provide enough real visual scene, perfect for all kinds of information of human-computer interaction for quick query, analysis, processing and display. At first, in view of the previous algorithms in the use of high precision DEM terrain data has the problem of efficiency is not high, and adopts the quad-tree structure terrain data on the macro, with characteristic line constraint is used in micro Dealunya triangulation tectonic landform, the topology data structure was optimized, and nested ball through error algorithm improved the 3D terrain fidelity; Finally, through the simulation test analysis, verified the system run in the same environment, realize visualization efficiency has improved significantly.

关 键 词：虚拟仿真 三维地形 DELAUNAY三角网 误差嵌套球 

分 类 号：TM75[电气工程—电力系统及自动化] TP391.9[自动化与计算机技术—计算机应用技术]