基于GIS和分形理论研究的海岸线图像和分维以及长度

分形理论对于海岸线性质的研究具有重要作用,分形插值方法作为处理此类问题的全新手段,可以根据少量数据刻划景物特征,产生预期的景物图像。扼要介绍了分形插值函数,据此可得到景物曲线的分形模拟图像、分维和长度。在此基础上,结合Visual Basic环境和国产全组件式GIS软件SuperMap Objects组件开发平台,开发相应的分形插值计算系统,然后以天津市海岸线为实例,实现海岸线的分形模拟图像,计算出海岸线分维,并归算得到海岸线的实际分形长度。结果表明,应用分形插值系统可以一举获得海岸线的分形模拟图像、分维和长度。

The Aesthetic Values of Robert Frost:Taoist Beauty in his Poetry

A dedicated farm-hand and four-time Pulitzer winner,Robert Frost is considered to be one of the mpst successful poets of the twentieth America.This thesis is intended to interprit his poetry in the light of Taoism.It is hoped that the new approach will yield a better understanding of Frosr's aesthetic values.