摘要
计算机技术的普及、网络通信技术的迅速发展,不但使地图学发生了深刻的变革,也给制图综合带来了新的机遇和挑战。在分析了网络环境下地图自动综合的现有研究方法及其优缺点的基础上,针对互联网这一特定的信息交换平台,提出了网络环境下地图自动综合的总体设计框架,建立了以实例数据库为核心的用户需求提取模型。同时也讨论了面向无级比例尺的矢量数据的信息压缩。
As the popularization of computer technology and fast development of network communication technology,profound changes have taken place in cartography,even the automatic map generalization now faces new opportunities and challenges.On the basis of analyzing existed research methods of automatic map generalization on web and their advantages and disadvantages,a whole design frame of automatic map generalization,which aims at network,is proposed.And the model of extracting user's requirement based on example database has been founded.At the same time,the stepless scale oriented information compression of vector data is also discussed.
出处
《测绘科学》
CSCD
北大核心
2006年第5期45-47,共3页
Science of Surveying and Mapping
基金
国家自然科学基金(40471115)
辽宁工程技术大学地理信息系统实验室开放基金(2004003)
关键词
互联网
地图自动综合
需求提取
数据压缩
network
automatic map generalization
requirement extract
data compression
