step by step就可以 9Ah4N2nL-b
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point1: Location of the first copy that resides in the center of the circular array. TM+7>a$
copies1: Number of copies along the spoke (including the center copy). ReY K5J=O
point2: Distance between the spoke copies and direction of initial spoke. tNjrd}8s
copies2: Number of spokes.