| 基于道路要素的多尺度路网数据模型 |
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| 引用本文： | 沙志仁,余志,黄敏,董倩文.基于道路要素的多尺度路网数据模型[J].测绘科学,2012,37(3):82-84. |
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| 作者姓名： | 沙志仁 余志 黄敏 董倩文 |
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| 作者单位： | 中山大学智能交通研究中心广东省智能交通系统重点实验室,广州,510006 |
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| 基金项目： | 国家高技术研究发展计划(863计划)项目 |
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| 摘 要： | GIS-T路网数据模型是实现ITS应用的前提和基础。本文以道路要素作为表达、存储和组织路网数据的基本单位,考虑不同尺度下的应用需求,提出了基于道路要素的多尺度路网数据模型,同时建立了道路拓扑关系与车道拓扑关系。本模型在不同尺度下分为3个层次,不同层次的要素之间建立了实体对应关系。该模型在交通标志标线布设方案自动生成系统上的实验表明,其建模方法是可行、有效的。
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| 关 键 词： | GIS-T 数据模型 道路要素 多尺度 非平面 |
Road feature based multi-level data model for road networks |
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| SHA Zhi-ren
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YU Zhi
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HUANG Min
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DONG Qian-wen.Road feature based multi-level data model for road networks[J].Science of Surveying and Mapping,2012,37(3):82-84. |
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| Authors: | SHA Zhi-ren YU Zhi HUANG Min DONG Qian-wen |
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| Institution: | (Research Center of Intelligent Transportation System,Sun Yat-sen University,Guangdong Provincial Key Laboratory of Intelligent Transportation System,Guangzhou 510006,China) |
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| Abstract: | GIS-T Data Model is the base of the applications of ITS.Road feature is the basic unit to express,store and organize road networks.Comprehending the different user requirements at different representation scales,the feature-based multi-level data model for road network was proposed in the paper.The data model consists of three levels,corresponding relations between features of different levels were established.The experiments proved that the proposed model was feasible and effective. |
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| Keywords: | GIS-T data model road feature multi-level non-planar |
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