长江科学院院报2019，Vol.36Issue(10)：19-22,4.DOI:10. 11988/ckyyb. 20190862
顾及水面比降的河道水面三维可视化方法
Three-dimensional Visualization Method for River Surface Considering Water Surface Slope
摘要
Abstract
Three-dimensional visualization of water surface is an important technical means to achieve realistic dis-play of digital watershed. The existing three-dimensional visualization technology of water surface generally does not consider the characteristics of water surface ratio of natural river course, and it is difficult to apply to three-dimen-sional visualization of water surface at large scale and basin level. A three-dimensional visualization method of river surface water surface considering water surface ratio is proposed. Firstly, boundary point densification and polygon triangulation were performed on the river surface boundary polygon, and then the elevation of the polygon boundary point was interpolated and adjusted based on the river water level process data. The adjusted triangle mesh was used for water surface drawing. Based on the water level process data of the Three Gorges reservoir area, the three-dimensional visualization of the river surface was carried out. The results show that the method can effectively ex-press the water level grading process of natural rivers.关键词
河道水面/水面比降/三维可视化/三角化/数字流域/河道水面插值Key words
river surface/water surface slope/3d visualization/triangulation/digital river basin/water surface in-terpolation分类
信息技术与安全科学引用本文复制引用
徐志敏,张力,马瑞,范青松,邵炜璇..顾及水面比降的河道水面三维可视化方法[J].长江科学院院报,2019,36(10):19-22,4.基金项目
国家重点研发计划项目(2017YFC1502601,2017YFC0405000) （2017YFC1502601,2017YFC0405000）
