At the same time, interpolation algorithm of terrain reconstruction based on bicubic B-spline and fractal is also discussed. An improved algorithm of random midpoint displacement method based on surface fractal character is proposed.
同时重点讨论了地形重构技术,采用基于双三次B-样条的地形重构算法和基于分形的地形重构算法,并提出了基于随机中点位移法的改进分形算法,该算法可以克服采用一般分形方法产生的地形各向同性的缺点,得到反映真实地形各向异性特性的真实模拟效果。
参考来源 - 飞行模拟器视景仿真系统设计与关键技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
构造的曲面是分片双三次有理参数多项式曲面。
This surface is a piecewise bi-cubic rational parametric polynomial surface.
探索和研究了数学船型构造及解的存在和唯一性；给出了计算双三次样条曲面的过程。
The structure of mathematical vessel-model and the existence and uniqueness of the solution is studied and the procedure for computing Bicubic Smoothed-Spline Surface is also provided.
对于参数曲面，采用先离散，再重新拟合的处理方法，建立统一的双三次参数样条曲面通用工件模型。
The input parametric surfaces are discrete, then we will get new surfaces with bicubic parameter spline function and build uniform workpiece model.
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