| 多比例尺下的三维GIS细节层次可视化技术 |
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| 引用本文： | 李军,景宁,孙茂印.多比例尺下的三维GIS细节层次可视化技术[J].计算机科学,2000,27(9):82-86. |
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| 作者姓名： | 李军 景宁 孙茂印 |
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| 作者单位： | 国防科技大学电子工程学院,长沙,410073 |
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| 基金项目： | 本文得到862项目862-306-zD09-02-4和国防科大基金项目资助。 |
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| 摘 要： | In this paper ,by investigating leve!yof detail in 3D GIS,we integrate generalization techniqueswith 3D visualization techniques on the basis of object oriented database. In order to improve the perfor-mance of database access ,we investigate the access structure based on modified reactive tree and analyzethe detailed method of representing level of detail. This approach visualizes 3I) object with object-orient-ed database and integrates generalization with 3I) visualization techniques ,3D G-IS is expected to achievebetter performance of query and photo-realistic visualization at multi-scale。
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| 关 键 词： | 多比例尺 三维GIS 可视化技术 细节层次 |
Visualization with Level of Dettail at Multi-Scale in 3D G1S |
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| Abstract: | In this paper.by investigating leve of detail in 3D GIS,we integrate generalization techniques with 3D visualization techniques on the basis of object oriented database. In order to improve the perfornuance of database access,we investigate thc access structure based on modified reactive tree and analyze the detailed method of representing level of detail. This approach visualizes 3D object with object-oriented database and integrates generalization with 3D visuahzation techniques,3D GIS is expected to achieve etter performance of query and photo-realistic visualization at multi-scale. |
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| Keywords: | 3D GIS Level of detail Object-oriented database |
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