mwdataaccess.cpp

《精通matlab与c++混合编程》的光盘内容

// mwDataAccess.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"

#include "matlab.hpp"
#include "mex.h"
#include "matrix.h"

int main(int argc, char* argv[])
{
	mwArray A,B;
	mxArray * pMx = NULL;
	double * pData=NULL;
	int j,k;
	A = rand(3,3);
	pMx = A.GetData();
	pData = mxGetPr(pMx);
	cout << "通过GetData和MATLAB C数学库访问mwArray的数据:" << endl;
	cout.precision(2);	
	for(j=0;j<9;j++)
	{
		cout <<pData[j]<<",";
	}
	cout << endl;

	/*构造复数数组B*/
	B = A+rand(3,3)*i();
	cout << "B = " << endl;
	cout.precision(3);
	cout << B << endl;
	double rdata5,idata5,*prdata,*pidata;
	prdata = new double[3*3];
	pidata = new double[3*3];
	rdata5 = B.ExtractScalar(idata5,5);
	cout.precision(2);
	cout << "B的第5个元素的为:" << rdata5 << "+"<< idata5<<"i"<< endl;	
	B.ExtractData(prdata,pidata);
	cout << "通过ExtractData返回的数据遍历B的各个元素:"<<endl;
	for(j=0;j<3;j++)
	{		
		for(k=0;k<3;k++)
		{
			cout << prdata[3*k+j] << "+" << pidata[3*k+j]<<"i  ";
		}
		cout << endl;
	}

	/*ToString的使用*/
	mwArray C = "No Pain! No Gain!";
	mwString sC = C.ToString();
	char * str = strdup((char *)sC);
	while(*str!='\0')
	{
		cout << *str;
		str++;
	}
	cout <<endl;
	return 0;
}