c++技术文档报告

1、实验一 技术开发文档1.需求分析（1）提示输入并显示输入的点的坐标。（2）已知直线上两点的坐标，采用两点式求直线方程，并显示直线长度。（3）输入圆的半径，根据圆周长、面积公式，求取并显示圆的周长、面积。（4）据上已输入两点为坐标求取矩形的面积。（5）以上输入的一点作为抛物线的焦点，再输入任意x值，求取对应的纵坐标与抛物线P值，确定抛物线的标准式。2.概念抽象 （1）定义点类，在点类中定义构造函数Point(),析构函数Point()、virtual Show、double GetX()、double GetY()五个函数与变量x，y，xx，yy，。 （2）定义线类，在线类中定义input()、

2、double GetLineLengh()、virtual Show()三个函数与变量Pa、Pb、pa、pb。 （3）定义圆类，在圆类中定义Radius变量以及Circle()、Circle ()、double GetCircleS()、double GetRadius()、virtual Show()五个函数与Radius、Rr变量。 （4）定义矩形类，在矩形类中定义Rect ()、double GetRectS ()、virtual Show()三个函数与变量Pc、Pd、pc、pd。（5）定义抛物线类，在抛物线类中定义Parabola ()、virtual Show()两个函数与变量Pe、

3、Pf、pe、pf、x、y、p。注：函数定义及功能详见附件。3.类的分析及说明实验二 技术开发文档1.需求分析 （1） 定义AD、DA板卡类，完成对板卡的封装； （2） 实现单通道和多通道的单点采集、多点采集、大批量采集； （3） 实现单通道和多通道的单点输出、多点输出；2.现实世界（1）AD采集PCI8735板卡AD采集过程为创建设备对象、判断创建设备对象是否成功、用户从键盘选择输入量程、设置硬件参数、初始化AD、判断AD初始化是否成功、数据采集、电压转换并显示。定义AD板卡类，定义了ADinit()、ADSet()、ADRead()、ReleaseAD()四个函数来从而完成对板卡的封装。在主

4、函数中直接调用几个函数即可。注：函数定义及具体应用详见附件3.类的分析及说明附件一 点、线、圆、矩形、抛物线的对象定义源代码#include using namespace std;#include class Point public: double x;double y;Point()Point(double xx,double yy)x = xx;y = yy;Point()double GetX()return x;double GetY()return y;virtual Show() cout点坐标为 (GetX(),GetY()endl;private:double xx;dou

5、ble yy;/线由点派生class Line :public Pointpublic:Point Pa;Point Pb;Line()Line(Point pa,Point pb)Pa= pa;Pb = pb;double GetLineLengh()/获取直线长度/double Lx = (Pb.GetX()-Pa.GetX()*(Pb.GetX()-Pa.GetX();/double Ly = (Pb.GetY()-Pa.GetY()*(Pb.GetY()-Pa.GetY();return sqrt(Pb.GetX()-Pa.GetX()*(Pb.GetX()-Pa.GetX()+(Pb

6、.GetY()-Pa.GetY()*(Pb.GetY()-Pa.GetY();virtual Show()cout线段ab的长度为 GetLineLengh()endl;private:double pa;double pb;/圆由点派生class Circle : public Pointpublic:double Radius;Circle()Circle(double Rr)Radius = Rr;Circle()double GetCircleS()return (double)2*3.14*Radius;double GetRadius()return (double)3.14*Ra

7、dius*Radius;virtual Show()cout圆半径为Radiusendl;cout圆周长为GetCircleS()endl;cout圆面积为GetRadius()endl;private:double Rr;/矩形由线派生class Rect:public Pointpublic:Point Pc;Point Pd;Rect()Rect(Point pc,Point pd)Pc= pc;Pd = pd;double GetRectS()return abs(Pd.x-Pc.x)*(Pd.y-Pc.y);virtual Show()cout矩形面积为 GetRectS()endl

8、;private:double pc;double pd;/*矩形由线派生class Rect:public Pointpublic:*/抛物线由点派生class Parabola:public Point public:Point Pe;Point Pf;Parabola()Parabola(Point pe,Point pf)Pe= pe;Pf = pf;virtual Show()cout焦点:(Pf.GetX(),Pf.GetY()endl; coutx; y=sqrt(4*Pf.GetX()*x);p=2*Pf.GetX(); coutx对应的两点纵坐标的值为:y=yendl;cou

9、t抛物线对应的：p=pendl;private:Point point1,point2;double x;double y;double p;double pf;double pe;void main() Point p1; Point p2;Circle circle;cout请输入 p1 点坐标p1.x ;cinp1.y ;p1.Show();cout请输入 p2 点坐标p2.x ;cinp2.y ;p2.Show();Line ab(p1,p2);ab.Show();cout请输入圆半径circle.Radius;circle.Show();Rect Rect(p1,p2);Rect.S

10、how();Parabola Parabola(p1,p2);Parabola.Show();附件二 AD采集源代码-AD.h-#ifndef _AD_#define _AD_#includewindows.h#includePCI8932.hclass CADpublic:CAD();int ADinit(HANDLE hDevice);void ADSet(HANDLE hDevice);int ADRead(HANDLE hDevice);void ReleaseAD(HANDLE hDevice);private:PCI8932_PARA_AD ADPara;/double VOLTi

11、n;/double Dataout;#endif-AD.cpp-#ifndef _AD_CPLUSPLUS_#define _AD_CPLUSPLUS_#includeAD.h#includewindows.h#includePCI8932.h#includestdio.h#includeconio.h#includemath.hint SelectGroundingMode(void);int SelectInputRange(void);int SelectGains(void);#define AD_DATA_LEN 1024*8USHORT ADBufferAD_DATA_LEN;DW

12、ORD dwError;char strErrorMsg256;CAD:CAD()memset(&ADPara, 0, sizeof(ADPara);int CAD:ADinit(HANDLE hDevice)DWORD dwError;char strErrorMsg256;if(hDevice=INVALID_HANDLE_VALUE)dwError=PCI8932_GetLastErrorEx(PCI8932_CreateDevice,strErrorMsg);printf(dwError=%x,%sn,dwError,strErrorMsg);return 0;return 1;voi

13、d CAD:ADSet(HANDLE hDevice)memset(&ADPara, 0, sizeof(ADPara);printf(please input the NO of the first channel and the last channel:n);scanf(%d,&ADPara.FirstChannel);scanf(%d,&ADPara.LastChannel);if(ADPara.FirstChannelADPara.LastChannel)printf(the Last Channel must be more than the First Channeln);sca

14、nf(%d,&ADPara.LastChannel);printf(please set the range of the input voltage,the grouding mode and the gains:n);ADPara.InputRange=SelectInputRange();ADPara.GroundingMode=SelectGroundingMode();ADPara.Gains=SelectGains();if(0=ADPara.GroundingMode)if(ADPara.LastChannel15)printf(the wrong last channel,in

15、put againn);elseif(ADPara.LastChannel7)printf(the wrong last channel,input againn);if(!PCI8932_InitDeviceAD(hDevice,&ADPara)dwError=PCI8932_GetLastErrorEx(PCI8932_CreateDevice,strErrorMsg);printf(dwError=%x,%sn,dwError,strErrorMsg);getch();/PCI8932_ReleaseDeviceAD(hDevice);/PCI8932_ReleaseDevice(hDe

16、vice);int CAD:ADRead(HANDLE hDevice)LONG nReadSizewords;LONG nRetSizewords=0;int ReadCount=0;int ChannelCount=ADPara.LastChannel-ADPara.FirstChannel+1;BOOL bFirstWait=TRUE;nReadSizewords = 512 - 512 %ChannelCount;ReadCount=16*ChannelCount;USHORT ADData;float fVolt;while (!kbhit()bFirstWait = TRUE;if

17、 (bFirstWait)printf(请等待，您可以按任意键退出，但请不要直接关闭窗口强制退出.n);bFirstWait = FALSE;if(!PCI8932_ReadDeviceAD(hDevice, ADBuffer, nReadSizewords, &nRetSizewords)dwError = PCI8932_GetLastErrorEx(PCI8932_ReadDeviceAD, strErrorMsg);printf(dwError = %x, %sn, dwError, strErrorMsg);getch();ReleaseAD(hDevice);int nADChan

18、nel = ADPara.FirstChannel;for(int Index=0; Index ADPara.LastChannel)nADChannel = ADPara.FirstChannel;printf(n);Sleep(200);return 0;void CAD:ReleaseAD(HANDLE hDevice)PCI8932_ReleaseDeviceAD(hDevice);PCI8932_ReleaseDevice(hDevice);int SelectGroundingMode(void)LONG GMode;Repeat2:printf(n);printf(0.the single-ended Grouding Moden);printf(1.the doubleended Grouding Moden);printf(Please Select Grouding Mode0-1:);scanf(%d, &GMode);if(GMode1)printf(the wro