几何地理数据相似性是地理数据匹配处理的基础,决定着地理数据匹配结果的成功率和准确率。本文分别从点、线、面3个角度对几何地理数据的相似性进行深入分析,通过对点、线、面三种地理要素特点的深入研究,给出了几何地理数据的相似性算法和度量模型。通过实验,初步验证了所提算法的可行性,为地理数据的相似性匹配研究奠定了基础。
Geometric similarity geographic data is the basis of geographic data matching process , determine the geographic data matc-hing and accuracy of the results .This paper respectively from the Angle of dot/line/face three geographic data , analyzing the similari-ty of geometry of dot, line, face three geographical elements characteristics of in -depth study, gives the geometrical similarity algo-rithm of geographic data and measurement model .At the end of the article , through the experiment verify the feasibility of the pro-posed algorithm , laid the foundation for the further study of geographic data similarity matching .