| 基于World Wind矢量数据压缩的研究与实现 |
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| 引用本文： | 马庆华,郑逢斌,乔保军,王强,沈亚田.基于World Wind矢量数据压缩的研究与实现[J].河南大学学报(自然科学版),2009,39(4). |
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| 作者姓名： | 马庆华 郑逢斌 乔保军 王强 沈亚田 |
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| 作者单位： | 1. 河南大学,数据与知识工程研究所,河南,开封,475001;中国科学院,遥感应用研究所,北京,100101;国家航天局,航天遥感论证中心,北京,100101
2. 河南大学,数据与知识工程研究所,河南,开封,475001 |
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| 基金项目： | 国家863科技专项，河南省科技厅重点科技攻关项目 |
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| 摘 要： | 矢量数据的压缩对于数据网络传输以及提高整个可视化系统的效率来说是一项很莺要的工作.本文对现有曲线矢量数据压缩算法进行比较,着重分析了曲线矢量数据压缩的Douglas-Peucker算法及相关理论,给出了该算法的递归实现,并在World Wind环境中实现了Shape格式文件的快速显示.实验结果证明,经过压缩后的矢量数据兼顾存储空间和显示精度,提高了World Wind应用效率.
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| 关 键 词： | Shape文件 |
The Research and Realization of Vector Data Compressing Based on World Wind |
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| MA Qing-hua,ZHENG Feng-bin,QIAO Bao-jun,WANG Qiang,SHEN Ya-tian.The Research and Realization of Vector Data Compressing Based on World Wind[J].Journal of Henan University(Natural Science),2009,39(4). |
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| Authors: | MA Qing-hua ZHENG Feng-bin QIAO Bao-jun WANG Qiang SHEN Ya-tian |
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| Institution: | 1.Institute of Data and Knowledge Engineering;Henan University;Kaifeng Henan 475001;China;2.Institute of Remote Sensing Applications Chinese Academy of Sciences;Beijing 100101;3.Demonstration Center of Spaceborne Remote Sensing National Space Administration;Beijing 10010;China |
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| Abstract: | Vector data compression for network transmission of data,as well as improving the overall efficiency of the visualization system is a very important task.This article is based on comparing the compression algorithms of existing curve vector data,focusing on the analysis of its Douglas-Peucker algorithm and related theories,finally,giving the method of recursive algorithm and realizing the rapid Shape format to display in World Wind environment.At the end,you can find it can improve the efficiency of the Wor... |
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| Keywords: | World Wind Douglas-Peucker |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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