包括两种计算方法:精确计算和近似计算(思考:local density=单位面积的点数 vs local density =1/单个点所占的面积) 每种方法可以实现三种模式的点云密度计算,CC里面的点云计算依赖于 给定的近邻半径所对应的最佳八叉树层级 (通过findBestLevelForAGivenNeighbourhoodSizeExtraction()方法实现) 在GeometricalAnalysisTools类文件中实现. //volume of a unit sphere stat
Find the total area covered by two rectilinear rectangles in a2D plane. Each rectangle is defined by its bottom left corner and top right corner as shown in the figure. Assume that the total area is never beyond the maximum possible value of int. Cre