| 制图综合与地理信息综合链 |
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| 引用本文： | 焦健,曾琪明.制图综合与地理信息综合链[J].地球信息科学,2003,5(2):36-38. |
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| 作者姓名： | 焦健 曾琪明 |
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| 作者单位： | 北京大学遥感与地理信息系统研究所, 北京 100871 |
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| 摘 要： | 本文阐述了传统制图综合、数字地图与GIS对制图综合概念产生的影响,并对国内外主要制图综合概念框架进行了综述与简明评价,指出现代综合概念应该从系统的高度全面、完整、充分地去认识。为准确反映现代制图综合的内涵和研究范畴,建议将传统的“制图综合”的术语拓展为“地理信息综合”。在此基础上,作者从地理信息传输系统的角度,分析了制图综合在不同传输阶段的特点,提出了地理信息综合链的概念,并指出完整的地理信息综合链应包括对象综合、数据库综合、制图综合和归纳综合四部分。它们彼此息息相关,互相制约。
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| 关 键 词： | 制图综合 地理信息综合 地理信息综合链 |
| 收稿时间： | 2002-12-10; |
| 修稿时间： | 2002年12月10 |
Geo-information Generalization and Geo-information Generalization Chain |
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| JIAO Jian,ZENG Qiming.Geo-information Generalization and Geo-information Generalization Chain[J].Geo-information Science,2003,5(2):36-38. |
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| Authors: | JIAO Jian ZENG Qiming |
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| Institution: | Institute of Remote Sensing and GIS, Peking University, Beijing 100871 |
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| Abstract: | This paper addresses the notion of conventional and digital generalization, and conducts a brief review and evaluations for a variety of conceptual frameworks of generalization.And we point out that the generalization should be treated holistically, fully from a system viewpoint.In order to exactly describe the connotation and domain of generalization, the authors suggest a new term, Geo-information Generalization, to supersede map generalization.Furthermore, based on analysis of geographic information communication, we propose a new concept of Geo-information Generalization chain, which includes four parts i.e.,objective generalization, database (or model) generalization, cartographic generalization and induction generalization.Objective generalization occurs when we abstract a portion from the real world to define and build an original database (primary model).The main objective of the following database generalization is to control data reduction for various purposes.Then cartographic generalization is used to generalize spatial data for cartographic visualization.Finally, induction generalization takes place when we make inferences from interrelationships among features in the real world and the database, on the map.The four sections are closely connected and interacted to each other during generalization. |
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| Keywords: | Map generalization Geo-information generalization Geo-information generalization Chain |
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