Abstract
This paper proposes a novel B-spline interpolation based on CL points preprocessing algorithm and on u-S modeling, aiming to overcome the shortages of linear and circular interpolations. A B-spline toolpath trajectory is generated by fitting a given set of CL points. CL points are preprocessed by chord distance to reduce computation load, thus using fewer feature CL points to generate a B-spline toolpath trajectory. As for disadvantages due to parameter updating for B-spline interpolation, a fifth order polynomial based on u-S modeling is constructed to map the desired curve length S to the corresponding spline parameter u, cutting the real-time computation load. Simulation results are provided to verify the feasibility and effectiveness of the proposed interpolation algorithm.
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