The direction pattern is Right-Up-Left-Down, and uses four random numbers a, b, c, d. (Ra, Ub, Lc, Dd, Ra, Ub, Lc, Dd, etc.)
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The original shape is then rotated about the origin 90°, 180° & 270°.
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Use the shuffle button to choose new random numbers for a, b, c & d.
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技术支持
技术支持
新建空白图表
示例