| 地图数据校正算法及其在GIS中的应用与实现 |
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| 引用本文： | 韩晶,李英奎,屈晓辉,吕肖庆.地图数据校正算法及其在GIS中的应用与实现[J].应用基础与工程科学学报,1999(4). |
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| 作者姓名： | 韩晶 李英奎 屈晓辉 吕肖庆 |
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| 作者单位： | 北京大学城市与环境学系!北京100871(韩晶，李英奎)，北京大学计算机科学技术研究所!北京100871(屈晓辉，吕肖庆) |
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| 摘 要： | 地图数据校正是ＧＩＳ的重要组成部分，它直接关系到ＧＩＳ的精度及其决策的正确性和有效性．本文根据ＧＩＳ中常见的误差类型，提出一套以线性、非线性及三角网分块校正算法为主线的数据校正解决方案，并对它们在ＧＩＳ中的适用层次及应用特点进行了论述，同时探讨了地图校正算法在计算机实现中的一些问题．
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| 关 键 词： | 地图数据校正 GIS 线性变换 非线性变换 三角网分块校正 |
Algorithms of Map Data Correction and its Application and Realization in GIS |
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| HAN Jing,LI Yingkui.Algorithms of Map Data Correction and its Application and Realization in GIS[J].Journal of Basic Science and Engineering,1999(4). |
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| Authors: | HAN Jing LI Yingkui |
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| Abstract: | The correction of map data is one of important components in GIS. It affects the functions and decision making of GIS directly. Based on common types of map data errors in GIS, the solution of data correction supported by linear, non linear, and triangle network division algorithms is posed in this paper. Application ranges and characters of these algorithms in GIS are analyzed. At the same time, some issues about their computer realization are discussed. |
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| Keywords: | map data correction GIS linear transformation non linear transformation triangle network division |
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