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《Journal of Hydroelectric Engineering》 2006-03
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A 3D watershed terrain modeling method based on software Terra Vista

ZHANG Shanghong,ZHANG Chao,ZENG Jun,WANG Xingkui(Key lab.of Water and Sediment Sciences of the Ministry of Education,Tsinghua University,Beijing 100084)  
3D terrain modeling is a fundamental procedure of watershed virtual reality and simulation.How to generate the 3D terrain swiftly and intelligently is a critical technology of terrain modeling.Combined with the terrain simulation of Dujiangyan,the modeling method is studied based on software Terra Vista.After the transformation and calibration of the contour data,remote sensing images and vector data,these data are imported into software Terra Vista and the Dujiangyan terrain model is then generated.The detailed generating procedure of terrain model is discussed in this paper,the modeling techniques of natural river course and artificial channel in watershed simulation offers a swift and intelligent method for 3D terrain generation in watershed virtual reality and simulation.
【CateGory Index】: TV221.1
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