3D modeling of terrace in the Loess Plateau
With the development of 3DGIS and virtual geographic environments,it is important and necessary to represent terrain in a more vivid form but keep geographic information precise too.At present,there is less study on the 3D representation of micro-landform in comparison with large scale 3D modeling of terrain.Regarding the building of a simulation environment that reflects the real situation of the Loess Plateau,its necessary to consider the features of microlandform.This paper aims to explore the way of building 3D model of terrace in the Loess Plateau,which is a typical landscape in the region.According to the characteristics of terrace,level terrace,the most common type,is considered as a modeling object and a new method of feature based TIN (Triangular Irregular Network) modeling is put forward.Two key techniques regarding the method are terraces feature extracting and the obtaining of objects elevation of points in each feature line to make TIN interpolation.
digital elevation model terrace 3-D landform model virtual geographic environments feature extraction
Wang Weixing Zhang Jinjin Gong Jianhua
The State Key Laboratory of Remote Sensing Sciences,Institute of Remote Sensing Applications,Chinese The State Key Laboratory of Remote Sensing Sciences,Institute of Remote Sensing Applications,Chinese
国际会议
第16届国际地理信息科学与技术大会(16th International Conference on GeoInformatics and the Joint Conference)
广州
英文
2008-06-28（万方平台首次上网日期，不代表论文的发表时间）