基于分形理论的富钴结壳微地形可视化实现

海底富钴结壳矿床的开采，需要实时掌握富钴结壳矿区的微地形特性。全文首先通过线形变换，把富钴结壳矿区所测的原始数字高程数据映射到[0，1]区间；然后，根据微地形的分形特性，采用常见的中点位移法对微地形高程数据进行分形插值，并进行三角网格剖分，在VC 环境下，利用OpenGL三雏图形标准，编程绘制出海底微地形图。整个系统编程算法精练高效、界面友好，并通过实验验证，仿真地形形象逼真、真实可靠，为实现深海微地形可视化提供了解决途径。

Visualization of Microtopography of Submarine Cobalt - rich Crust Based on Fractal Theory

It is needed to real-timely know microtopographical features of mining area during mining submarine cobalt-rich crust. This paper changes the measured altitude data of submarine cobalt-rich crust mining area into interval [-1,1] by linear transformation, then, in the light of fractal features of submarine microtopography, adopts conventional midpoint displacement method to make the fractal interpolation to altitude data of submarine microtopography in order to divide the triangular grid, finally, based on the OpenGL 3D graphics standard programs to map the submarine microtopography. The experiment has verified that algorithms used for the programming is succinct and highly efficient, the program interface is friendly, and simulated submarine microtopography is lifelike. This provides an approach to realize the visualization of submarine microtopography.