3D拓扑优化算法，经典169行代码，MATLAB语言(3D topology optimization algorithm)

Design grating and simulate its diffracted orders with distortion. It can be used to design the dots-pattern illumination for structured-light 3D detection. 用于光栅设计和仿真其衍射级次的畸变效果。该程序能够用于设计点阵形式的结构光照明，以进行3D结构光测量。

matlab编程利用hess simth面元法(边界元法)计算球体及椭球体附加质量(Matlab programming uses hess_simth surface element method (boundary element method) to calculate the additional mass of spheres and ellipsoids)