xyzrgb-txt2bin(point cloud)

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <iostream>
#include <algorithm>
#include <fstream>
#include <iomanip>
#include <sstream>
#include <cstdlib>

using namespace std;

int main(int argc,char *argv[])
{

    /*****************************************************
            1.Definition of Variables
        ******************************************************/
    //FILE *fpr,*fpw1,*fpw2;  //file pointer for input&output file

    int color;//
        //int dn1,dn2,dn3,dn4,dn5;
    int r,g,b;
    float x,y,z;
    int id;

    if(argc!=4)
    {
        fprintf(stderr,"Usage: %s (1)xyzrgb.txt\n(2)xyz.bin\n(3)color.bin\n",argv[0]);
        exit(1);
    }

    cout<<"OPEN FILE NAME:"<<argv[1]<<endl;

    ifstream ifs(argv[1]);
//    if((fpr=fopen(argv[1],"r"))==NULL)//original xyzrgb text file
//    {
//        printf("error\n");
//        exit(1);
//    }


//    if((fpw1=fopen(argv[2],"wb"))==NULL)//for xyz
//    {
//        fprintf(stderr,"DSM by GSI.raw\n");
//        exit(1);
//    }
    ofstream ofs_xyz (argv[2],ios::out|ios::binary);


//    if((fpw2=fopen(argv[2],"wb"))==NULL) //for rgb
//    {
//        fprintf(stderr,"DSM by GSI.raw\n");
//        exit(1);
//    }
    ofstream ofs_rgb (argv[3],ios::out|ios::binary);

            //id=0;]

    std::string buf;

    for(size_t i=0; ifs && getline(ifs, buf); i++)
    //while(fscanf(fpr,"%f %f %f %d %d %d",&x,&y,&z,&r,&g,&b)!= EOF)
    {
        std::istringstream is(buf);

        is >>x>>y>>z>>r>>g>>b;
        ofs_xyz.write((char *)&x, sizeof(float));
        ofs_xyz.write((char *)&y, sizeof(float));
        ofs_xyz.write((char *)&z, sizeof(float));
        ofs_rgb.write((char *)&r, sizeof(int));
        ofs_rgb.write((char *)&g, sizeof(int));
        ofs_rgb.write((char *)&b, sizeof(int));
                //id=id+1;
            //cout << x << endl;
            //color=1000000*(int)r+1000*(int)g+(int)b;
                //fwrite(&x,sizeof(float),1,fpw);
                //fwrite(&x,sizeof(float),1,fpw1);
                //fwrite(&y,sizeof(float),1,fpw1);
                //fwrite(&z,sizeof(float),1,fpw1);
//              fwrite(&r,sizeof(int),1,fpw2);
//              fwrite(&g,sizeof(int),1,fpw2);
//              fwrite(&b,sizeof(int),1,fpw2);
//              file_o.write((char *)&sd_color, sizeof(int));
//          //fprintf(fpw,"%f %f %f %d\n",x,y,z,color);
            //fprintf(fpw,"%f %f %f %d %d %d\n",x,y,z,r,g,b);
    }
    ifs.close();
    ofs_xyz.close();
    ofs_rgb.close();
}