Hybrid application of biarc fitting and linear fitting in CNC
Rao Yun-qing · Machinery Design and Manufacture · 2011
One algorithm of the hybrid application of biarc fitting and linear fitting is proposed in it to solve the fitting problem in CNC.After getting the discrete points of the contours to be processed,Pointwise trial and backtracking methodwas proposed to make more points to be fitted with a line or an arc or a circle in the premise of meeting the accuracy and the smooth of contour.According to tangential variation of the discrete points and the slope of line before and after the discrete points,the inflection point of the contour is recognized and remained,which tangential shall be processed before and after fitting in order to ensure the contour for the same.The result indicate that the method is good which application effect of vectorization results after fitting in CNC is excellent.