实现点云数据三角面片的法矢计算。及显示。为进一步进行曲面重建起到非常关键的作用。-Realize the point cloud data of triangles in sagittal calculation method. And display. For further surface reconstruction in plays a key role.

PCL课本全章源码的，包含I/O,kd-tree,八叉树，可视化，滤波，深度图像，关键点。采样一致性算法，点云特征描述与提取，点云配准，点云分割，点云曲面重建-the code of book“Point Cloud Library”