c++技术文档报告

实用文档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()、virtualShow、doubleGetX()、doubleGetY()五个函数与变量x，y，xx，yy，。（2）定义线类，在线类中定义input()、doubleGetLineLengh()、virtualShow()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()、doubleGetCircleS()、doubleGetRadius()、virtualShow()五个函数与Radius、Rr变量。（4）定义矩形类，在矩形类中定义Rect()、doubleGetRectS()、virtualShow()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()、virtualShow()两个函数与变量Pe、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<iostream>usingnamespacestd;#include<cmath>classPoint{public:doublex; doubley; Point(){} Point(doublexx,doubleyy){x=xx;y=yy;} ~Point(){} doubleGetX(){returnx;} doubleGetY(){returny;} virtualShow() { cout<<"点坐标为("<<GetX()<<","<<GetY()<<")"<<endl; }private: doublexx; doubleyy;};//线由点派生classLine:publicPoint{public: PointPa; PointPb; Line(){} Line(Pointpa,Pointpb){Pa=pa;Pb=pb;} doubleGetLineLengh()//获取直线长度 { //doubleLx=(Pb.GetX()-Pa.GetX())*(Pb.GetX()-Pa.GetX()); //doubleLy=(Pb.GetY()-Pa.GetY())*(Pb.GetY()-Pa.GetY()); returnsqrt((Pb.GetX()-Pa.GetX())*(Pb.GetX()-Pa.GetX())+(Pb.GetY()-Pa.GetY())*(Pb.GetY()-Pa.GetY())); } virtualShow() { cout<<"线段ab的长度为"<<GetLineLengh()<<endl; }private: doublepa; doublepb;};//圆由点派生classCircle:publicPoint{ public: doubleRadius; Circle(){} Circle(doubleRr){Radius=Rr;} ~Circle(){} doubleGetCircleS(){return(double)2*3.14*Radius;} doubleGetRadius(){return(double)3.14*Radius*Radius;} virtualShow() { cout<<"圆半径为"<<Radius<<endl; cout<<"圆周长为"<<GetCircleS()<<endl; cout<<"圆面积为"<<GetRadius()<<endl; } private: doubleRr; };//矩形由线派生classRect:publicPoint{public: PointPc; PointPd; Rect(){} Rect(Pointpc,Pointpd){Pc=pc;Pd=pd;} doubleGetRectS() { returnabs((Pd.x-Pc.x)*(Pd.y-Pc.y)); } virtualShow() { cout<<"矩形面积为"<<GetRectS()<<endl; }private: doublepc; doublepd; };/*矩形由线派生classRect:publicPoint{public:}*///抛物线由点派生classParabola:publicPoint{public: PointPe; PointPf; Parabola(){} Parabola(Pointpe,Pointpf){Pe=pe;Pf=pf;} virtualShow(){ cout<<"焦点:("<<Pf.GetX()<<","<<Pf.GetY()<<")"<<endl; cout<<"输入任一点横坐标x的值:x="; cin>>x; y=sqrt(4*Pf.GetX()*x); p=2*Pf.GetX(); cout<<"x对应的两点纵坐标的值为:y="<<"±"<<y<<endl; cout<<"抛物线对应的：p="<<p<<endl; }private: Pointpoint1,point2; doublex; doubley; doublep; doublepf; doublepe;};voidmain(){ Pointp1;Pointp2; Circlecircle; cout<<"请输入p1点坐标"<<endl; cin>>p1.x; cin>>p1.y; p1.Show(); cout<<"请输入p2点坐标"<<endl; cin>>p2.x; cin>>p2.y; p2.Show(); Lineab(p1,p2); ab.Show(); cout<<"请输入圆半径"<<endl; cin>>circle.Radius; circle.Show(); RectRect(p1,p2); Rect.Show(); ParabolaParabola(p1,p2); Parabola.Show();}}附件二AD采集源代码---------------------------------AD.h--------------------------------#ifndef_AD_#define_AD_#include"windows.h"#include"PCI8932.h"classCAD{public: CAD(); intADinit(HANDLEhDevice); voidADSet(HANDLEhDevice); intADRead(HANDLEhDevice); voidReleaseAD(HANDLEhDevice);private: PCI8932_PARA_ADADPara; //doubleVOLTin; //doubleDataout;};#endif---------------------------------AD.cpp------------------------------#ifndef_AD_CPLUSPLUS_#define_AD_CPLUSPLUS_#include"AD.h"#include"windows.h"#include"PCI8932.h"#include"stdio.h"#include"conio.h"#include"math.h"intSelectGroundingMode(void);intSelectInputRange(void);intSelectGains(void);#defineAD_DATA_LEN1024*8USHORTADBuffer[AD_DATA_LEN];DWORDdwError;charstrErrorMsg[256];CAD::CAD(){ memset(&ADPara,0,sizeof(ADPara));}intCAD::ADinit(HANDLEhDevice){ DWORDdwError; charstrErrorMsg[256]; if(hDevice==INVALID_HANDLE_VALUE) { dwError=PCI8932_GetLastErrorEx("PCI8932_CreateDevice",strErrorMsg); printf("dwError=%x,%s\n",dwError,strErrorMsg); return0; } return1;}voidCAD::ADSet(HANDLEhDevice){ memset(&ADPara,0,sizeof(ADPara)); printf("pleaseinputtheNOofthefirstchannelandthelastchannel:\n"); scanf("%d",&ADPara.FirstChannel); scanf("%d",&ADPara.LastChannel); if(ADPara.FirstChannel<0) { printf("thewrongChannel,inputagain\n"); scanf("%d",&ADPara.FirstChannel); } if(ADPara.FirstChannel>ADPara.LastChannel) { printf("theLastChannelmustbemorethantheFirstChannel\n"); scanf("%d",&ADPara.LastChannel); } printf("pleasesettherangeoftheinputvoltage,thegroudingmodeandthegains:\n"); ADPara.InputRange=SelectInputRange(); ADPara.GroundingMode=SelectGroundingMode(); ADPara.Gains=SelectGains(); if(0==ADPara.GroundingMode) { if(ADPara.LastChannel>15) printf("thewronglastchannel,inputagain\n"); } else { if(ADPara.LastChannel>7) printf("thewronglastchannel,inputagain\n"); } if(!PCI8932_InitDeviceAD(hDevice,&ADPara)) { dwError=PCI8932_GetLastErrorEx("PCI8932_CreateDevice",strErrorMsg); printf("dwError=%x,%s\n",dwError,strErrorMsg); getch();// PCI8932_ReleaseDeviceAD(hDevice);// PCI8932_ReleaseDevice(hDevice); }}intCAD::ADRead(HANDLEhDevice){ LONGnReadSizewords; LONGnRetSizewords=0; intReadCount=0; intChannelCount=ADPara.LastChannel-ADPara.FirstChannel+1; BOOLbFirstWait=TRUE; nReadSizewords=512-512%ChannelCount; ReadCount=16*ChannelCount; USHORTADData; floatfVolt; while(!kbhit()) { bFirstWait=TRUE; if(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,%s\n",dwError,strErrorMsg); getch(); ReleaseAD(hDevice); } intnADChannel=ADPara.FirstChannel; for(intIndex=0;Index<ReadCount;Index++) { if(kbhit())ReleaseAD(hDevice); ADData=ADBuffer[Index]&0x1FFF; ADData=ADData/pow(2,ADPara.Gains); switch(ADPara.InputRange) { casePCI8932_INPUT_N10000_P10000mV://-10V-+10V fVolt=(float)((20000.00/8192)*ADData-10000.00); break; casePCI8932_INPUT_N5000_P5000mV://-5V-+5V fVolt=(float)((10000.00/8192)*ADData-5000.00); break; casePCI8932_INPUT_N2500_P2500mV://-2.5V-+2.5V fVolt=(float)((5000.00/8192)*ADData-2500.00); break; casePCI8932_INPUT_0_P10000mV://0V-+10V fVolt=(float)((10000.00/8192)*ADData); break; default: printf("InputRangeError...\n"); getch(); return0; } //printf("CH%02d=%6.2f\t",nADChannel,fVolt); printf("CH%02d=%d\t",nADChannel,ADData); nADChannel++; if(nADChannel>ADPara.LastChannel) { nADChannel=ADPara.FirstChannel; printf("\n"); } } Sleep(200); } return0;}voidCAD::ReleaseAD(HANDLEhDevice){ PCI8932_ReleaseDeviceAD(hDevice); PCI8932_ReleaseDevice(hDevice);}intSelectGroundingMode(void){ LONGGMode;Repeat2: printf("\n"); printf("0.thesingle-endedGroudingMode\n"); printf("1.thedoubleendedGroudingMode\n"); printf("PleaseSelectGroudingMode[0-1]:");