钢结构断面绘制

这是pSCAD环境下的储能仿真模型，包含1MW的负载，对于为电网储能模型搭建有着很好的借鉴(This is a simulation model pSCAD storage environment, including 1MW load, grid energy storage for building model has a good reference)

绘制B样条曲线,以及相应的De-boor算法程序(Bspline drawing and the corresponding De-boor algorithm)

下垂控制的PSCAD模型，可完美运行，供参考学习(PSCAD model droop control)

通过折射率计算色散，并绘制曲线，适合做色散匹配等用途。(Calculate dispersion by refractive index and plot curves)

测量弧的线性长度并在绘图平面标注弧长。arcdim(The linear length measuring arc and arc length dimension in the drawing plane. arcdim)

手动绘制点，自动生成样条曲线，可以拖动修改点来修改样条曲线(Manually plotting points, automatically generated spline curves, you can drag the modified point to modify the spline)

b样条曲线程序和gui界面，输入参数画出曲线(B-spline curve program and GUI interface, input parameters to draw the curve)

基于PSCAD 4.5搭建的IEEE标准2区4机11节点模型，参数配置正确，潮流计算结果正确。(PSCAD 4.5 build local area based on IEEE 4 2 11 node model, all the parameters have been configured correctly, flow calculation results are accurate.)

说明：  python画柱状图，python画散点图，python画双y轴图，python画柱状图，python画散点图，python画双y轴图(Python draws a histogram)

本程序实现了计算机图形学的一些重要算法（画直线，画圆，画椭圆，区域填充，图形裁剪，齿轮生成，三次样条曲线等等），源码和可执行程序均打包于文件中(this program is implemented some important algorithm of computer graphics such as drawing lines,drawing circles,drawing ellipse,area filling,Graphics clipping，gear wheel generation ，three times spline curve and so on），source code and executable files are all included in the compressed file。 )