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基于弧长参数化的曲面W-M 分形插值

  

  • 出版日期:2012-12-31 发布日期:2015-07-29

W-M fractals interpolation with freeform surface based on arc-length parameterization

  • Online:2012-12-31 Published:2015-07-29

摘要: 论文提出了一种以Weierstrass-Mandelbrot 分形(简称W-M 分形)与参数
曲面相合成来实现分形曲面的数字化建模的方法。指出了在参数曲面上合成W-M 分形以及
实施弧长参数化计算的必要性;论述了弧长参数化的具体算法,并用此方法实现了W-M 分
形与参数曲面的合成;在此基础上,提出了两向异性分形曲面的一种建模方法,实现了参数
曲面上进行两向异性W-M 分形的插值模拟。

关键词: 分形, 弧长参数化, 参数曲面, 两向异性

Abstract: A method of modeling W-M fractal freeform surfaces by superposing W-M
fractals on parametric surfaces is proposed in this work. First, the significance of superposing
W-M fractals with parametric curves and surfaces is pointed out; then the importance of utilizing
arc-length parameterization for the superposing is described, and followed by our specific
algorithm with which the fractal simulation with freeform surfaces is achieved; at the last section,
an anisotropic approach for presenting freeform fractal surfaces is developed and with
demonstrated graphics simulation.

Key words: fractal, arc-length parameterization, parametric surfaces, anisotropic