Using RSIMWEH, Particle System and Metaball to Simulate the Process of Soil Erosion by Water on Hillslopes

Acta Scientiarum Naturalium Universitatis Pekinensis

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Using RSIMWEH, Particle System and Metaball to Simulate the Process of Soil Erosion by Water on Hillslopes

SHEN Dayong¹，MA Ainai²，LIN Hui¹，MAO Shanjun²，NIE Xianghui³

¹Joint Laboratory for Geoinformation Science, Chinese Un iversity of Hong Kong, Hong Kong; ²Institute of Remote Sensing and GIS, Peking University, Beijing, 100871; ³Center for Information Science, Peking University, Beijing, 100871

Received:2001-12-21 Online:2002-11-20 Published:2002-11-20

遥感信息模型、粒子系统与元球结合模拟坡面水蚀过程

沈大勇¹,马蔼乃²,林珲¹,毛善君²,聂向晖³

¹香港中文大学地球信息科学联合实验室，香港；²北京大学遥感与地理信息系统研究室，北京，100871; ³北京大学信息科学中心，北京，100871

Abstract

Abstract: Particle system and metaball techniques are introduced from computer graphics to geography. Combined with Remote Sensing In formation Model of Water Erosion on Hillslopes(RSIMWEH), the authors put forward the concept of erosion voxel and dynamically display the process of soil erosion by water on hillslopes in 3D space. This is a new probe for 3D GIS theory and the paper proves its feasibility through application.

Key words: RSIMWEH, particle system, metaball, erosion voxel

摘要： 从计算机图形学领域引入粒子系统与元球技术，同坡面土壤水蚀遥感信息模型(RSIMWEH)结合，提出侵蚀体元的概念，从三维可视化角度动态显示坡面水蚀过程。从三维GIS理论上来说，这是一种新的探索，在技术上，结合实际应用证明了其可行性。

关键词: 坡面土壤水蚀遥感信息模型, 粒子系统, 元球, 侵蚀体元

CLC Number:

SHEN Dayong,MA Ainai,LIN Hui,MAO Shanjun,NIE Xianghui. Using RSIMWEH, Particle System and Metaball to Simulate the Process of Soil Erosion by Water on Hillslopes[J]. Acta Scientiarum Naturalium Universitatis Pekinensis.

沈大勇,马蔼乃,林珲,毛善君,聂向晖. 遥感信息模型、粒子系统与元球结合模拟坡面水蚀过程[J]. 北京大学学报（自然科学版）.

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Using RSIMWEH, Particle System and Metaball to Simulate the Process of Soil Erosion by Water on Hillslopes

遥感信息模型、粒子系统与元球结合模拟坡面水蚀过程

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