使用visual studio 2013读取.mat文件

现在有一个T.mat 文件需要在c++中处理然后以.mat 或是.txt形式返回

T．mat中存储了十个cell，每个cell中会有一个不等长的数组

1.以下是相关配置过程：

参考：http://wenku.baidu.com/link?url=3CiA3T6wtaBEUSJnpvmfmvZzaKXop1Ea68HM-s1S02fMZUm5dhYsqrC4tE4JNjbYbvnflEe7ZaRa5oqCQmNGBvmAi67ZujICsjxXKIuEzC

VC++ 包含目录 添加 D:Program FilesMATLABR2014aexternincludewin64;D:Program FilesMATLABR2014aexterninclude;

连接器 常规 附加库目录 D:Program FilesMATLABR2014aexternlibwin32microsoft;D:Program FilesMATLABR2014aexternlibwin64microsoft

链接器 输入 附加依赖项 libmat.lib;libmx.lib;libmex.lib;libeng.lib

配置管理器中活动解决方案平台选择x64

更改环境变量path D:Program FilesMATLABR2014aexternlibwin64microsoft;D:Program FilesMATLABR2014ainwin64

2.然后是读入的代码

//read .mat from matlab
#include <iostream>
#include <mat.h>
#include<iomanip>
#include <fstream>
#include <vector>
using std::vector;
int main()
{
    MATFile *pmatFile = NULL;
    mxArray *pMxArray = NULL, *pMxArray_i = NULL;
    double *pMx_cell_i = NULL;
    //读入.MAT
    pmatFile = matOpen("D:/Program Files/MATLAB/R2014a/work/mywork/test_for_data/mydata1.mat", "r");
    //std::cout << pmatFile;
    pMxArray = matGetVariable(pmatFile, "w");
    //size_t M = mxGetM(pMxArray);
    //size_t N = mxGetN(pMxArray);
    //std::cout << N;
    int num_of_cell{ (int)mxGetNumberOfElements(pMxArray) };
    std::cout << "the number of the CELL we have got for the T :" << num_of_cell << std::endl;
    //int A[10];由于数组 的长度需要事先给定，所以改用vector
    vector<int> V_A;
    //Matrix<double> A(num_of_cell, 1);
    for (int i{ 0 }; i < num_of_cell; i++)
    {
        pMxArray_i = mxGetCell(pMxArray, i);
        int num_of_cell_i = (int)mxGetNumberOfElements(pMxArray_i);
        std::cout << "the number of the CELL " << i << " we have got for the T :" << num_of_cell_i << std::endl;
        double sum_i = 0;
        for (int j{ 0 }; j < num_of_cell_i; j++)
        {
            pMx_cell_i = mxGetPr(pMxArray_i);
            std::cout << std::setw(10) << *(pMx_cell_i + j);
            sum_i = sum_i + *(pMx_cell_i + j);
        }
        std::cout << std::endl;
        std::cout << "sum " << i << " is " << sum_i << std::endl;
        //A[i] = sum_i;
        V_A.push_back(sum_i);
                //
    }
    matClose(pmatFile);
    //mxFree(pMxArray);
    //mxFree(pMxArray_i);
    //mxFree(pMx_cell_i);

    //写到e:/data.TXT中 
    FILE *p=NULL;
    //if ((p = fopen("e:\data.txt", "wt")) != NULL)
    //for (int i = 0; i<10; i++) 
    //    fprintf(p, "%d 
", A[i]);  
    //fclose(p);
    //FILE *p;
    if ((p = fopen("e:\data_V.txt", "wt")) != NULL)
    for (int i = 0; i<num_of_cell; i++)
        fprintf(p, "%d 
", V_A.at(i));
    fclose(p);
}

后记：这里主要还是验证配置的正确性，只进行了一个加和运算。

修改：使用vector来存储计算结果，可以适应数据的长度改变。