3D Dynamic Visualization for Flow Fields Based on Virtual Globe
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Abstract:
Hydrometeorological disasters are one of the major natural disasters affecting China. Hydrometeorological grid data form a dynamic threedimensional flow field. The visualizing flow field is important to explore the inherent variation of hydrometeorological disasters. Considering the data characteristics of large amount, multidimensional, multiscale and dynamic changing, this paper presents a 3D dynamic visualization method for flow fields based on a virtual globe. It includes two data processing methods: flow field data organization and dynamic data interpolation. Meanwhile, three improved visualization techniques including particle tracking, 3D streamline and volume rendering are studied. Finally, the method is verified by two different cases: river flood and typhoon. The experiments show that the method can smoothly realize the detailed dynamic visualization of the threedimensional flow field, which is of great significance for emergency decisionmaking of hydrometeorological disasters.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.