Authors: Hongyao Shen Jianzhong Fu Yongqiang Fan
Publish Date: 2011/02/08
Volume: 56, Issue: 1-4, Pages: 215-221
Abstract
A new interpolation scheme for 2D NURBS curve is proposed in this paper The scheme contains two steps preprocessing and realtime interpolation which are bridged by circular buffer and table lookup method in order to improve the data utilization and simplify the calculation process The preprocessing divides the curve into segments by dangerous points then realtime interpolation is implemented within the segment unit During this process adaptive interpolation algorithm adjusts the feed rate according to the curvature which guarantees the contour accuracy meanwhile the axis dynamics module confines the dynamics parameters of every axis within limits without requiring lookahead and backtracking strategy At the end experiments verify the high efficiency and reliability of the algorithm
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