drawing-board

MFC实现的画板程序，能够画图并保存，适合初学者(Sketchpad program, implemented by MFC drawing and save for beginners)

基于频散曲线，选择抽样脉冲信号作为子波，推导出了合成单炮面波地震记录的理 论公式，并利用该公式，针对不同弹性层状介质模型的频散曲线合成了面波地震记录。(Based on the dispersion curve, select the sampling pulse signal wavelet derived synthetic single artillery surface wave seismogram theoretical formulas, and the use of the formula, seismogram synthesis of surface wave dispersion curves for different elastic layered media model.)

MFC做的画图软件 只能画直线 还有待改进 适合初学者 看看(MFC do draw a straight line drawing software can be improved for beginners look)

风力发电机的浆距控制PSCAD仿真模型,模型通过仿真可以看到如何调节风力机的浆距(Wind turbine pitch control PSCAD simulation model, model simulation you can see how to adjust the pitch of the wind turbine)

用四阶龙格-库塔法求系统在U单位阶跃输入下该系统的响应曲线(Using the four order Runge Kutta method to find the response curve )

解析法面积计算,读数据文件,计算后生成结果文件,任意多边形的顶点坐标,然后 计算出面积是平方米和公顷(analytical calculation, reading data files, calculation results generated documents, arbitrary polygon vertices, then compute the area of square meters and ha)

PSCAD做的风力机模型，嵌入了3维风力特性曲线，动态调节转矩与转速。(PSCAD do wind turbine model, embedded in the 3 d wind characteristic curve, dynamic torque and rotational speed adjustment.)

DFX格式的文件操作例子,可以读出由CAD绘制的保存为DFX格式的图片,附带大量注释(DFX format file manipulation example, can read out by the CAD drawing for the preservation DFX format photographs, Notes of a large number of fringe)

利用逐点法绘制出图形，图形的绘制其实都是由折线组成的，只是每条折线的误差太小了，肉眼根本分辨不出来(use of the point-by-point drawing graphics, the graphics are actually drawn from the composition of the dogleg, only broken each of error is too small, the human eye can not be seen)

说明：  单文档绘图测试程序。单文档绘图测试程序。(single document mapping test. Single document mapping test.)