Abstract
Surface fitting techniques are becoming more and more widely used in today’s industry. To make up for the lack of accurate representation of circular holes in circular surfaces in current surface fitting algorithms, this paper improved the original algorithm based on the nonuniform rational B-sample surface fitting by referring to the form of polar coordinates in the step of parameter direction determination to make it more accurate in fitting circular surfaces. Finally, by comparing the traditional method with the improved algorithm in this paper through experimental fitting, the accuracy and practicality of the algorithm can be shown from the results.
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