在分析现有的插值曲线数据点参数化方法基础上,提出一种动态参数化方法。该方法从数据点分布中,提取能够反映数据点拓扑结构信息的参数值θ,并以θ为自变量构造函数f(θ),再以f(θ)作为数据点间弦长的指数,构造出数据点的参数化方法,针对数据点不同的拓扑分布,应用不同的参数化公式,适应性较强,实验证明效果令人满意。
Existing parametrization methods cannot adapt themselves to the different distributions of data points. Therefore we propose our own dynamic parametrization method, whereby we extract the parameter named θ because it contains their topological and structural information. Using θ as an independent variable, we constructed a function calledf(θ) to act as the exponent of their chord. The method adapts itself to various parametrized formulae in accordance with their different topological distributions. An experiment proves that it is an effective method.