Measurement of Global Sizes of Cylinder Based on Spiral Profile Extraction Strategy

The single spiral profile and the single spiral-double roundness profiles extraction strategies of cylindrical feature were promoted. According to the definitions of cylinder’s global sizes, their evaluation models were established based on two extraction strategies. The axis parameters of the reference cylindrical surface for two extraction strategies were determined by using the artificial ecosystem-based optimization algorithm, the program flowchart of which was given. Through the profiles’ extraction of one sample and evaluation of global sizes, the correctness of the established evaluation models and the availability of the developed program were verified. The optimal eigenvalues of nine optimization algorithms showed that the artificial ecosystem-based optimization algorithm is one of the optimization algorithms suitable for evaluating cylinder’s global sizes.