The input lines of dots and the surface, and calculate the composition of the convex polygon centroid, area, and whether the specified line cross, etc.
说明:根据输入点组成线和面,并计算组成的凸多边形的质心、面积、是否和指定线交叉等。
The input lines of dots and the surface, and calculate the composition of the convex polygon centroid, area, and whether the specified line cross, etc.
说明:根据输入点组成线和面,并计算组成的凸多边形的质心、面积、是否和指定线交叉等。
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