c 设计技术文档

最好的沉淀整理实验一技术开发文档1.需求分析（1）显示输入的点的坐标。（2）已知直线上两点的坐标，求取直线的斜率、截距和直线方程。（3）已知圆心坐标，圆的半径或直径，求取圆的周长、面积和圆的方程。（4）已知矩形一点的坐标，一边与x轴夹角的弧度值及两边长度，求取矩形四个点坐标、圆心坐标、周长、面积和矩形方程。（5）已知抛物线上一点的坐标及抛物线的对称轴，求取准线方程、抛物线开口方向和抛物线方程。2.概念抽象（1）定义点类，在点类中定义xinput()、yinput()和point_output()三个函数。（2）定义线类，在线类中定义first_point_input()、second_point_input()、tile_rate(_x1,_y1,_x2,_y2)、intercept(_k,_x1,_y1)和line_output()五个函数。（3）定义圆类，在圆类中定义circle_center_input()、r_or_d_input()、circle_perimeter()、circle_area()和circle_output()五个函数。（4）定义矩形类，在矩形类中定义rectangle_input()、rectangle_points()、rectangle_perimeter_and_area()和rectangle_output()四个函数。（5）定义抛物线类，在抛物线类中定义parabolic_input()和parabolic_output()两个函数。注：函数定义及具体应用详见附件3.类的分析及说明附件：点、线、圆、矩形、抛物线的对象定义源代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PCI8932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，在类中定义创建设备对象函数、选择输入量程函数、设置硬件参数函数和初始化AD函数，从而完成对板卡的封装。（2）DA输出PCI8932板卡DA输出的过程为创建设备对象、判断创建设备对象是否成功、用户从键盘上输入DA通道号、用户从键盘上输入电压值和输出恒定电压。定义DA板卡类，在类中定义创建设备对象函数，从而完成对板卡的封装。注：函数定义及具体应用详见附件3.类的分析及说明（1）AD采集类图（2）DA输出类图附件：AD采集源代码DA输出源代码附件点、线、圆、矩形、抛物线的对象定义源代码//该程序用于几何图形点、线、圆、矩形、抛物线的对象定义//线由点派生；圆由点派生；矩形由线派生；抛物线由点派生//可以获得几何图形的特征点、特征线等参数#include<iostream>#include<cmath>usingnamespacestd;constdoublePI=3.14159;//定义点类classPoint{public:doublexinput();//输入点的横坐标doubleyinput();//输入点的纵坐标voidpoint_output();//输出点的坐标private:doublex;doubley;};//定义线类classLine:publicPoint{public:voidfirst_point_input();//输入线上一点的坐标voidsecond_point_input();//输入线上另一点的坐标doubletile_rate(double_x1,double_y1,double_x2,double_y2);//计算直线的斜率doubleintercept(double_k,double_x1,double_y1);//计算直线的截距voidline_output();//回显输入两点的坐标，输出斜率、截距和直线方程private:doublex1;doubley1;doublex2;doubley2;doublek;doubleb;};//定义圆类classCircle:publicPoint{public:voidcircle_center_input();//输入圆心坐标voidr_or_d_input();//输入半径或直径doublecircle_perimeter();//计算圆的周长doublecircle_area();//计算圆的面积voidcircle_output();//回显输入的圆心坐标、半径或直径，输出圆的方程private:charans;doubleox;doubleoy;doubler;doubled;doublel;doubles;};//定义矩形类classRectangle：publicLine{public:voidrectangle_input();//输入矩形一点的坐标，一边与x轴夹角的弧度值及两边长度voidrectangle_points();//计算矩形四个点和圆心的坐标voidrectangle_perimeter_and_area();//计算矩形周长和面积voidrectangle_output();//回显输入，输出矩形四个点和圆心坐标、周长及面积private:doublex1,y1;doublex2,y2;doublex3,y3;doublex4,y4;doublex_O,y_O;doubleangle;doublelength_1;doublelength_2;doublel;doubles;};//定义抛物线类classParabolic:publicPoint{public:voidparabolic_input();//输入抛物线上一点的坐标voidparabolic_output();//选择抛物线的对称轴//计算并输出抛物线方程，准线方程及抛物线开口方向private:doublex;doubley;doublep;charans;};intmain(){charans;cout<<"Pleaseenteralettertochoosethegeometrygraph"<<""<<"thatyouwanttohandle.\n";cout<<"pforpointandlforline\n"<<"cforcircleandrforrectangle\n"<<"tforparabolic\n";cin>>ans;//选择要处理的几何图形if((ans=='p')||(ans=='P'))//处理点{Pointpoint;cout<<"Enterthecoordinatesofthepoint:\n";//输入点的坐标point.xinput();point.yinput();cout<<"thecoordinatesofthepointis"<<""<<endl;//输出点的坐标point.point_output();cout<<endl;}elseif((ans=='l')||(ans=='L'))//处理线{Lineline;cout<<"Enterthecoordinatesoftwopoints:\n";//输入线上两点的坐标cout<<"Enterthecoordinatesofthefirstpoint:\n";line.first_point_input();cout<<"Enterthecoordinatesofthesecondpoint:\n";line.second_point_input();line.line_output();cout<<endl;}elseif((ans=='c')||(ans=='C'))//处理圆{Circlecircle;cout<<"Enterthecoordinatesofcirclecenter:\n";//输入圆心坐标circle.circle_center_input();circle.r_or_d_input();circle.circle_perimeter();circle.circle_area();circle.circle_output();cout<<endl;}elseif((ans=='r')||(ans=='R'))//处理矩形{Rectanglerectangle;rectangle.rectangle_input();rectangle.rectangle_points();rectangle.rectangle_perimeter_and_area();rectangle.rectangle_output();cout<<endl;}else{Parabolicparabolic;//处理抛物线cout<<"Enterthecoordinatesofonepointontheparabolic:\n";parabolic.parabolic_input();parabolic.parabolic_output();}return0;}doublePoint::xinput(){cout<<"Pleaseinputthexaxiscoordinateofthepoint."<<endl;cin>>x;returnx;}doublePoint::yinput(){cout<<"Pleaseinputtheyaxiscoordinateofthepoint."<<endl;cin>>y;returny;}voidPoint::point_output(){cout<<"("<<x<<","<<y<<")"<<endl;}voidLine::first_point_input(){x1=xinput();y1=yinput();}voidLine::second_point_input(){x2=xinput();y2=yinput();}doubleLine::tile_rate(double_x1,double_y1,double_x2,double_y2){double_k;_k=(_y2-_y1)/(_x2-_x1);return_k;}doubleLine::intercept(double_k,double_x1,double_y1){double_b;_b=_y1-_k*_x1;return_b;}voidLine::line_output(){k=tile_rate(x1,y1,x2,y2);b=intercept(k,x1,y1);cout<<"Thecoordinatesofthetwopointsare:\n"<<"("<<x1<<","<<y1<<")"<<""<<"("<<x2<<","<<y2<<")"<<endl;cout<<"Thetilerateofthelineis"<<""<<k<<endl;cout<<"Theinterceptofthelineis"<<""<<b<<endl;cout<<"Theequationexpressionofthelineis"<<"";if((k==0)&&(b==0))cout<<"y=0"<<endl;elseif((k==0)&&(b!=0))cout<<"y="<<b<<endl;elseif((k!=0)&&(b==0))cout<<"y="<<k<<"x"<<endl;elsecout<<"y="<<k<<"x"<<"+"<<b<<endl;}voidCircle::circle_center_input(){ox=xinput();oy=yinput();}voidCircle::r_or_d_input(){cout<<"Pleaseenteraletter:rforradiusanddfordiameter\n";cin>>ans;if(ans=='r'){cout<<"Entertheradiusofthecircle:\n";cin>>r;}else{cout<<"Enterthediameterofthecircle:\n";cin>>d;}}doubleCircle::circle_perimeter(){if((ans=='r')||(ans=='R'))l=2*PI*r;elsel=PI*d;returnl;}doubleCircle::circle_area(){if((ans=='r')||(ans=='R'))s=PI*pow(r,2);elses=PI*pow(d/2.0,2);returns;}voidCircle::circle_output(){cout<<"Thecoordinatesofcirclecenteris"<<""<<"("<<ox<<","<<oy<<")"<<endl;if((ans=='r')||(ans=='R')){cout<<"Theradiusofcircleis"<<""<<r<<endl;if((ox==0)&&(oy==0)){cout<<"Theequationexpressionofcircleis"<<""<<"x"<<"*"<<"x"<<"+"<<"y"<<"*"<<"y"<<"="<<r*r<<endl;}elseif((ox==0)&&(oy!=0)){cout<<"Theequationexpressionofcircleis"<<""<<"x"<<"*"<<"x"<<"+"<<"("<<"y"<<"-"<<oy<<")"<<"*"<<"("<<"y"<<"-"<<oy<<")"<<"="<<r*r<<endl;}elseif((ox!=0)&&(oy==0)){cout<<"Theequationexpressionofcircleis"<<""<<"("<<"x"<<"-"<<ox<<")"<<"*"<<"("<<"x"<<"-"<<ox<<")"<<"+"<<"y"<<"*"<<"y"<<"="<<r*r<<endl;}elseif((ox!=0)&&(oy!=0)){cout<<"Theequationexpressionofcircleis"<<""<<"("<<"x"<<"-"<<ox<<")"<<"*"<<"("<<"x"<<"-"<<ox<<")"<<"+"<<"("<<"y"<<"-"<<oy<<")"<<"*"<<"("<<"y"<<"-"<<oy<<")"<<"="<<r*r<<endl;}elsecout<<"Itisimpossible.\n";}else{cout<<"Thediameterofcircleis"<<""<<d<<endl;if((ox==0)&&(oy==0)){cout<<"Theequationexpressionofcircleis"<<""<<"x"<<"*"<<"x"<<"+"<<"y"<<"*"<<"y"<<"="<<(d/2.0)*(d/2.0)<<endl;}elseif((ox==0)&&(oy!=0)){cout<<"Theequationexpressionofcircleis"<<""<<"x"<<"*"<<"x"<<"+"<<"("<<"y"<<"-"<<oy<<")"<<"*"<<"("<<"y"<<"-"<<oy<<")"<<"="<<(d/2.0)*(d/2.0)<<endl;}elseif((ox!=0)&&(oy==0)){cout<<"Theequationexpressionofcircleis"<<""<<"("<<"x"<<"-"<<ox<<")"<<"*"<<"("<<"x"<<"-"<<ox<<")"<<"+"<<"y"<<"*"<<"y"<<"="<<(d/2.0)*(d/2.0)<<endl;}elseif((ox!=0)&&(oy!=0)){cout<<"Theequationexpressionofcircleis"<<""<<"("<<"x"<<"-"<<ox<<")"<<"*"<<"("<<"x"<<"-"<<ox<<")"<<"+"<<"("<<"y"<<"-"<<oy<<")"<<"*"<<"("<<"y"<<"-"<<oy<<")"<<"="<<(d/2.0)*(d/2.0)<<endl;}elsecout<<"Itisimpossible.\n";}cout<<"Theperimeterofcircleis"<<""<<l<<endl;cout<<"Theareaofcircleis"<<""<<s<<endl;}voidRectangle::rectangle_input(){cout<<"Pleaseinputthecoordinatesofonepoint:\n";cin>>x1>>y1;cout<<"Pleaseinputtheangle(rad):\n";cin>>angle;cout<<"Pleaseinputthelengthoftwosides:\n";cin>>length_1>>length_2;}voidRectangle::rectangle_points(){x2=x1+length_1*cos(angle);y2=y1+length_1*sin(angle);x3=x1-length_2*sin(angle)+length_1*cos(angle);y3=y1+length_2*cos(angle)+length_1*sin(angle);x4=x1-length_2*sin(angle);y4=y1+length_2*cos(angle);x_O=(x1+x3)/2.0;y_O=(y1+y3)/2.0;}voidRectangle::rectangle_perimeter_and_area(){l=2*(length_1+length_2);s=length_1*length_2;}voidRectangle::rectangle_output(){cout<<"thecoordinatesoftheinputpointis"<<""<<"("<<x1<<","<<y1<<")"<<endl;cout<<"theinputangleis"<<""<<angle<<endl;cout<<"theinputlengthoftwosidesare"<<""<<length_1<<","<<length_2<<endl;cout<<"thefourpointsoftherectangleare:\n"<<"("<<x1<<","<<y1<<")"<<""<<"("<<x2<<","<<y2<<")"<<""<<"("<<x3<<","<<y3<<")"<<""<<"("<<x4<<","<<y4<<")"<<endl;cout<<"thecoordinatesofthecenterpointis:\n"<<"("<<x_O<<","<<y_O<<")"<<endl;cout<<"theperimeteroftherectangleis"<<""<<l<<endl;cout<<"theareaoftherectangleis"<<""<<s<<endl;}voidParabolic::parabolic_input(){x=xinput();y=yinput();}voidParabolic::parabolic_output(){cout<<"Pleaseinputalettertochoosetheaxisthatparabolicsymmetryaboutit.\n"<<"xstandsforxaxisandystandsforyaxis"<<endl;cin>>ans;if((ans=='x')||(ans=='X')){p=(y*y)/(2*x);cout<<"Theequationexpressionofparabolicis"<<""<<"y*y="<<(2*p)<<"x"<<endl;cout<<"Theaccuratelineofparabolicis"<<""<<"x="<<(-p)/2.0<<endl;if(p>0)cout<<"Theopendirectionofparabolicisright.\n";elsecout<<"Theopendirectionofparabolicisleft.\n";}elseif((ans=='y')||(ans=='Y')){p=(x*x)/(2*y);cout<<"Theequationexpressionofparabolicis"<<""<<"x*x="<<(2*p)<<"y"<<endl;cout<<"Theaccuratelineofparabolicis"<<""<<"y="<<(-p)/2.0<<endl;if(p>0)cout<<"Theopendirectionofparabolicisright.\n";elsecout<<"Theopendirectionofparabolicisleft.\n";}elsecout<<"Theinputofletteriswrong.\n";}附件AD采集源代码//说明：本程序演示了如何用程序查询方式读取AD数据#include"stdafx.h"#include"windows.h"#include"stdio.h"#include"conio.h"#include"PCI8932.h"//驱动程序接口头文件,它位于该演示程序目录下HANDLEhDevice;DWORDdwErrorCode;charstrErrorMsg[256];intInputRange;LONGnReadSizeWords;//每次读取AD数据的长度(字)PCI8932_PARA_ADADPara;//硬件参数#defineMAX_AD_CHANNELS4//定义最大通道数#defineAD_DATA_LEN1024*8//要读取和处理的AD数据长度（点或字）USHORTADBuffer[AD_DATA_LEN];//分配缓冲区(存储原始数据)classDaq{public:voidCreateDevice(void);intSelectInputRange(void);voidsetparameter(void);voidInitDeviceAD(void);};intmain(intargc,char*argv[]){BOOLbFirstWait=TRUE;//为每次等待只显示一次提示LONGnRetSizeWords;intnADChannel=0;USHORTADData;floatfVolt;DaqAD;AD.CreateDevice();//创建设备对象InputRange=AD.SelectInputRange();//要求用户从键盘上选择输入量程AD.setparameter();//设置硬件参数AD.InitDeviceAD();//初始化ADwhile(!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)){dwErrorCode=PCI8932_GetLastErrorEx("PCI8932_ReadDeviceAD",strErrorMsg);printf("dwErrorCode=%x,%s\n",dwErrorCode,strErrorMsg);getch();PCI8932_ReleaseDeviceAD(hDevice);PCI8932_ReleaseDevice(hDevice);//释放设备对象}nADChannel=ADPara.FirstChannel;for(intIndex=0;Index<64;Index++){if(kbhit())PCI8932_ReleaseDeviceAD(hDevice);PCI8932_ReleaseDevice(hDevice);//释放设备对象ADData=ADBuffer[Index]&0x1FFF;//将原码转换为电压值switch(InputRange){casePCI8932_INPUT_N10000_P10000mV://-10V-+10VfVolt=(float)((20000.00/8192)*ADData-10000.00);break;casePCI8932_INPUT_N5000_P5000mV://-5V-+5VfVolt=(float)((10000.00/8192)*ADData-5000.00);break;casePCI8932_INPUT_N2500_P2500mV://-2.5V-+2.5VfVolt=(float)((5000.00/8192)*ADData-2500.00);break;casePCI8932_INPUT_0_P10000mV://0V-+10VfVolt=(float)((10000.00/8192)*ADData);break;default:printf("InputRangeError...\n");getch();return0;}printf("CH%02d=%d\t",nADChannel,ADData);//显示电压值nADChannel++;if(nADChannel>ADPara.LastChannel){nADChannel=ADPara.FirstChannel;printf("\n");}}Sleep(200);}return0;}//创建设备对象voidDaq::CreateDevice(void){intDeviceLgcID;DeviceLgcID=0;hDevice=PCI8932_CreateDevice(DeviceLgcID);//创建设备对象if(hDevice==INVALID_HANDLE_VALUE){dwErrorCode=PCI8932_GetLastErrorEx("PCI8932_CreateDevice",strErrorMsg);printf("dwErrorCode=%x,%s\n",dwErrorCode,strErrorMsg);}}//获取用户选择的输入量程intDaq::SelectInputRange(void){LONGInputRange;Repeat:printf("\n");printf("0.-10V～+10V\n");printf("1.-5V～+5V\n");printf("2.-2.5V～+2.5V\n");printf("3.0V～+10V\n");printf("PleaseSelectInputRange[0-3]:");scanf("%d",&InputRange);if(InputRange<0||InputRange>3)gotoRepeat;//判断用户选择的量程是否合法，不合法，则重新选择returnInputRange;}//设置硬件参数voidDaq::setparameter(void){memset(&ADPara,0,sizeof(ADPara));//将参数结构初始化为确定值0(强烈建议)//预置硬件参数ADPara.FirstChannel=0;//首通道ADPara.LastChannel=3;//末通道ADPara.InputRange=InputRange;//模拟量输入量程范围ADPara.GroundingMode=PCI8932_GNDMODE_SE;//选择接地方式为单端ADPara.Gains=PCI8932_GAINS_1MULT;//程控增益intChannelCount=ADPara.LastChannel-ADPara.FirstChannel+1;nReadSizeWords=512-512%ChannelCount;//将数据长度字转换为双字}//初始化ADvoidDaq::InitDeviceAD(void){if(!PCI8932_InitDe