| 3维地图符号的数据结构研究 |
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| 引用本文： | 危拥军,王家耀,陈广学,侯溯源,吉国杰.3维地图符号的数据结构研究[J].测绘学院学报,2004,21(3):231-234. |
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| 作者姓名： | 危拥军 王家耀 陈广学 侯溯源 吉国杰 |
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| 作者单位： | [1]西安测绘研究所，陕西西安710054 [2]信息工程大学测绘学院，河南郑州450052 |
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| 摘 要： | 如何用计算机的1维存储空间存放由0维、1维、2维、3维等空间目标的集合所定义的形体，是几何造型中最基本的问题。文中针对传统地图符号表现方法的局限性，分析了国内外3维地图符号的研究现状，针对3维地图符号设计的特点和要求采用参数函数和边界数据模型作为建立3维地图符号的数据结构。
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| 关 键 词： | 3D地图符号 3D数据模型 3D数据结构 |
On Data Structure of 3D Map Symbols |
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| WEI Yong-jun,WANG Jia-yao,CHEN Guang-xue,HOU Suo-yuan,JI Guo-jie.On Data Structure of 3D Map Symbols[J].Journal of Institute of Surveying and Mapping,2004,21(3):231-234. |
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| Authors: | WEI Yong-jun WANG Jia-yao CHEN Guang-xue HOU Suo-yuan JI Guo-jie |
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| Abstract: | The basic problem in the geometry modeling is how to use 1D storage space of computer to store the forms defined by the aggregation of space objects, such as 0D,1ID or 2D and 3D. In accordance with the limitation of performance of traditional map symbols, this paper analyzes the present research condition of 3D map symbols at home and abroad. In the light of the feature and requirements of 3D map symbols designs, two major kinds of expression of models are employed to establish the data structure of them. |
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| Keywords: | 3D map symbols 3D data structure 3D data model |
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