3维建筑综合中基于最小特征的面平移算法  

Facet Shift Algorithm Based on Minimal Feature in Simplification of Parallel Building

作　　者：葛磊[1] 武芳[1] 王鹏波[1] 张冬林[2] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052 [2]73603部队,江苏南京210000

出　　处：《测绘科学技术学报》2009年第2期103-105,109,共4页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金(40337055);国家863计划(2007AA12Z21)

摘　　要：城市建筑的形态多种多样,其中平行结构建筑是城市中最为广泛的一类。随着3维数字城市模型的广泛应用,对于此结构建筑综合方法的研究越来越多,其中化简方法的实现是综合的重点和难点问题。面平移算法是当前平行结构建筑化简所采用的主要方式,此处采用最小特征作为面平移的基础实现了平行结构建筑化简的面平移算法,通过实验对该算法进行了验证,并从化简过程、化简结果和不确定性3个方面将此算法与基于最短距离的面平移算法进行了详细的对比和分析。City consists of different kinds of buildings, among which parallel building is the most popular kind in modern city. As the wide use 3D city model, more and more generalization methods of this kind of building have been developed and simplification is the key issue in generalization. Facet shift algorithm is a most important algorithm used in simplification of parallel building. Facet shift algorithm was realized based on minimal feature in this paper and experiment was done to test it. Then the algorithm was contrasted with algorithm based on mineral distance in course, result and uncertainty of simplification.

关 键 词：3维建筑综合 面平移算法 化简 细节分层 最小特征 

分 类 号：P208[天文地球—地图制图学与地理信息工程]