基于组件GIS的海岸线分形模拟研究

分形理论已成为研究海岸线性质的重要工具。本文扼要介绍分形插值函数,据此可得到景物曲线的分形模拟图像。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,实现相应的分形插值模拟程序,对该程序设计作了简要介绍,并应用该程序对天津市海岸线进行了实际模拟,结果表明,根据分形插值函数采用组件GIS技术对之进行模拟是切实可行的。

RESEARCH ON THE FRACTAL SIMULATION IMAGE OF COASTLINES BASED ON GIS AND FRACTAL THEORY

Fractal theory has been one of the most important tools for studying coastline character.The fractal interpolation function are introduced briefly that can deduce the fractal simulation Image and the fractal dimension and length of scene curve.On the basis of the above discussion,the fractal interpolation program is developed by selecting Visual Basic as development environment and SuperMap Objects as ActiveX.And taking Tianjin coastline as an example,the program is used to establish the fractal simulation image of coastline.The results show that the fractal simulation Image of coastline can be obtained by applying fractal interpolation function and GIS supporting.