一种基于逐步线性插值的曲线扩展算法

摘要

本文采用插值算法实现了采集数据和显示数据之间的映射和变换.比较了常见的Lagrange插值、Newton插值和逐步线性插值三种方法.根据这三种方法的优缺点以及本次运用的特点,最终选择了逐步线性插值算法.%Based on the interpolation algorithm, the data mapping and transformation between data collection and data display was achieved. The common three kinds of interpolation algorithm were compared. They were Lagrange interpolation, Newton interpolation and step by step linear interpolation. Based on the advantages and disadvantages of these methods and characteristics of the use , the step by step linear interpolation algorithm was finally chosen.