layerstack

说明：  2维装箱问题基于遗传算法求解二维装箱问题。。。。(2-D packing problem)

选取四个点，自动判断是否在一个平面上。同一个平面上。则绘制一个多边形。不在一个平面，则以前三个点为底面，构成一个椎体。支持Move等转换命令，存图与开图，实现Jig交互绘制等。(Four points are selected to automatically determine whether or not they are on a plane. On the same plane. Draw a polygon. If it is not in a plane, the first three points are at the bottom, forming a vertebral body. Support Move and other conversion commands, save and open maps, Jig interactive rendering, etc.)

说明：  LsDyna二次开发流程介绍及示例。umat42各向同性材料。(Introduction and example of secondary development process of LSDYNA)

MATLAB编写的一段有限元方法计算梁的应力分析程序(A finite element method program written by matlab for stress analysis of beams)

CustomView Show the Custom View Command

一个仿真光栅的程序，可以通过设计kappa，长度来计算光栅放射参数(a grating simulation Matlab code)

离散点生成等高线的程序，基于方格网数字地形模型(Discrete points of the program to generate contour lines, grid-based DTM)

说明：  在MATLAB中建立模拟地面风场的数学模型，可以用于流体计算等。(A mathematical model to simulate the ground wind field is establed in MATLAB ,and it can be used in fluid calculation and so on.)

三相桥式全控PWM整流电路，采用电压外环、电流内环的双闭环控制(Three phase bridge type fully controlled PWM rectifier circuit adopts double closed loop control of voltage outer loop and current inner loop.)

固定资产管理系统Fixed Assets Management System(Fixed Assets Management System)