Fourth-order-LongGe-coulthard-method

说明：  这个软件是用在CAD里的，给尺寸加公差上去很方便。(This software is used in the CAD in the, tolerances up to plus size is very convenient.)

说明：  vc ++ 6.0 实现的各种统计图，线图，饼图，直方图(Charts including pie，line and bar chart)

信息架构的Visio模板： 总结了三种应用场合。 线框模板：也叫页面结构图，显示如何使用各种网页组件和模块。 地图模板：描述页之间的联系，每个页面都有唯一编号对应到线框模板。 流程模板：用纯粹的流程图或者图表来解释和界定一个过程。 (Information architecture of the Visio template: To summarize the three types of applications. Wireframe Template: also known as page structure chart, showing how to use a variety of website components and modules. Map Template: Description of the contact between pages, each page has a unique code corresponds to the wire-frame template. Flow template: used purely to explain the flow chart or diagram and define a process.)

说明：  1． 做一个集成的图形界面的程序，可调用每一次作业子程序。 2． 调用画点的函数，用DDA、中点算法画直线和中点算法及正负法画圆和抛物线。 3． 交互式的二维直线求交：如果存在交点，用实心圆显示交点，并用文字显示其坐标。 4． 用动画实现二维图形变换的各种算法，实现对指定形体的平移、旋转和缩放。（包括自行车行走和绕固定点旋转的自旋转物体动画。） 5． 线段裁剪和多边形裁剪算法的动画演示实现。（两种线段裁剪算法和H-S多边形逐边裁剪算法）多边形裁剪算法的动画演示要求先画出一个封闭的多边形，再画矩形的裁剪窗口，然后选择裁剪按钮（或命令），按下“上边裁剪”按钮（或执行“上边裁剪”命令），多边形相对裁剪窗口的上边进行裁剪，显示上边裁剪后的多边形，依此进行其它各边裁剪。 6． 两种扫描多边形扫描转换算法实现（扫描线算法为必做，基于求余运算的边缘填充和边标志算法任选一种）； 7． 4连通区域的递归种子填充算法，和扫描线种子填充算法，要求种子点(x,y)可交互输入）。 8． 简单三维图形系统：凸多面体的建模、透视投影，隐藏面的消除及基本图形变换（平移、旋转、缩放）。 9． 交互式Bezier曲线的输入绘制程序实现 (1. So an integrated graphical interface procedures, which call for each operation subroutine. 2. Calling the painting point function, with DDA, the midpoint algorithm painting line and the midpoint algorithm and France Circle and the positive and negative parabola. 3. Interactive 2D linear intersection : If there intersection with a solid circle indicates Nodal and writing to demonstrate its coordinates. 4. Using 2D animation graphics transform algorithms to achieve the specified physical translation, rotation and scaling. (Including walking and cycling around the fixed point of rotating objects from the rotating animation.) 5. Line cutting and polygon clipping algorithm to achieve the animation demo. (Two segments cutting algorithm and H-S-by-side polygon clipping algorithm) polygon clipp)

自己利用PSCAD搭建的２种PPL锁相环，能够自己调节ＰＩ参数，并与自带的ＰＬＬ进行了测试比较。(PSCAD build their own use two kinds of PPL phase-locked loop to adjust the PI parameters of their own, and with the built-in PLL more)

已知型值点反求控制点，最后获得B样条曲线(Data points are known to reverse the control point, and finally obtain B-spline curve)

这是一个图形学应用的小程序，可以实现简单的填充功能。(This is a small graphics application procedures, can be filled with simple functions.)

Cadence Allegro 中文教程(Cadence Allegro Chinese tutorial)

说明：  绘图工具，实用且经过实际测验有着较好的效果，兼容性好(Drawing tool, practical and tested in practice, has good effect and compatibility.)

这是风机在并入无限大电网的PSCAD仿真模型，对于研究风机并网特性有很好的效果(This is the fan in the power grid PSCAD incorporated infinite simulation model for the study of fan and network characteristics have a good effect)