Journal of University of Chinese Academy of Sciences >
Dynamic dispatching and organization of massive data of urban 3D model
Received date: 2014-04-15
Revised date: 2014-08-18
Online published: 2015-05-15
Massive data of three-dimension urban model and the bottleneck of computer hardware are great challenge to real-time rendering and visualization. The efficiency of the visualization can be significantly improved by organizing and managing the massive data effectively. This work proposes a method for organizing the three-dimension model using quad-tree spatial index and dispatching the data using the technique of view-based level-of-details (LOD). Additionally, a method for reconstructing the mesh using the texture as the render unit rather than the single model is proposed to accelerate the rendering process of rough models. Experimental results show that the proposed method works efficiently with a stable frame-rate of 30 fps and satisfies the requirements of the visualization of massive model data and the real-time interaction.
Key words： three-dimension model; three-dimension GIS; LOD; quad-tree; batch processing
WANG Feng , PAN Deji , WANG Jun . Dynamic dispatching and organization of massive data of urban 3D model[J]. Journal of University of Chinese Academy of Sciences, 2015 , 32(3) : 409 -415 . DOI: 10.7523/j.issn.2095-6134.2015.03.018
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