vc++绘制天线方向图(3)

VC++绘制天线辐射方向图

4.4.1

时的方向图

4.4.2

4.4.3

时的方向图

时的方向图

VC++绘制天线辐射方向图

4.4.4

4.4.5

4.4.6

时的方向图

时的方向图

时的方向图

VC++绘制天线辐射方向图

第五章 附录

5.1头文件 engine_h

#if defined(_MSC_VER) # pragma once #endif #if

defined(__GNUC__)&&(__GNUC__ >3||(__GNUC__==3&&__GNUC_MINOR__>3)) # pragma once #endif

#ifndef engine_h #define engine_h #ifndef EXTERN_C #ifdef __cplusplus

#define EXTERN_C extern \#else

#define EXTERN_C extern #endif #endif

#include \ /* mx Routines used in module */ typedef struct engine Engine; /* Incomplete definition for Engine */

EXTERN_C int engEvalString(

EXTERN_C Engine *engOpenSingleUse(

const char *startcmd, /* exec command string used to start matlab */ void *reserved, /* reserved for future use, must be NULL */ int *retstatus /* return status */ );

Engine *ep, );

/* engine pointer */

/* string for matlab t execute */

const char *string

VC++绘制天线辐射方向图

EXTERN_C int engSetVisible(

EXTERN_C int engGetVisible(

EXTERN_C Engine *engOpen(

EXTERN_C int engClose(

EXTERN_C mxArray *engGetVariable(

EXTERN_C int engPutVariable(

EXTERN_C int engOutputBuffer(

Engine *ep, /* engine pointer */ bool newVal );

Engine *ep, /* engine pointer */ bool* bVal );

const char *startcmd /* exec command string used to start matlab */ );

Engine *ep /* engine pointer */ );

Engine *ep, );

/* engine pointer */

const char *name /* name of variable to get */

Engine *ep, /* engine pointer */ const char *var_name,

const mxArray *ap /* array pointer */ );

Engine *ep, /* engine pointer */

/* character array to hold output */

/* buffer array length */

char *buffer, int buflen );

VC++绘制天线辐射方向图

#endif /* engine_h */ 5.2主程序

main.cpp #include #include #include #include #include \

#pragma comment( lib, \#pragma comment( lib, \#pragma comment( lib, \#define lambda 1.0 #define L0 1.0 int main() {

Engine *ep;

if(!(ep=engOpen(\{

fprintf(stderr,\return EXIT_FAILURE; } double k; double L; int N=3601; double theta0=0;

const double PI=3.1415926; double *theta=new double[N]; double *fe=new double[N];

k=2*PI/lambda; L=L0*lambda; for(int i=0;i

VC++绘制天线辐射方向图

{

theta[i]=theta0*PI/180;

fe[i]=fabs((cos(k*L*cos(theta[i]))-cos(k*L))/sin(theta[i])); theta0=theta0+0.1; }

mxArray *THETA=NULL; mxArray *FE=NULL;

THETA=mxCreateDoubleMatrix(1,N,mxREAL); FE=mxCreateDoubleMatrix(1,N,mxREAL);

memcpy((void*)mxGetPr(THETA),(void*)theta,N*sizeof(theta[0])); memcpy((void*)mxGetPr(FE),(void*)fe,N*sizeof(fe[0]));

engPutVariable(ep,\engPutVariable(ep,\

engEvalString(ep,\printf(\fgetc(stdin);

mxDestroyArray(THETA); mxDestroyArray(FE); engEvalString(ep,\engClose(ep);

return EXIT_SUCCESS; }