实现对三维点云数据的曲面重构显示，而且通过迭代指定了每个片面的法失，使重构曲面更加平滑，Opengl学习必备入门程序，并已封装好了各种类，方便学习-Surface Reconstruction achieve the three-dimensional point cloud data show, but also through an iterative method is specified for each one-sided loss to make a smoother surface