Thread: get lines with c++

Not sure what to tell you. I was able to read an example file with minimal changes. I never intended to write anything you could just insert into your homework. This is a simple program that reads one pose at a time and spits it back out.

Code:

#include <iostream>
#include <fstream>
#include <vector>

using namespace std;

struct Vector3 {
    float x, y, z;
};

struct  joint_angle {
    int count;

    Vector3 orient;
};

struct pose {
    float time;
    vector<joint_angle> angle;
};

std::istream & operator>> (std::istream & stream, joint_angle & ja)
{
    ja.count = 0;
    stream >> ja.orient.x >> ja.orient.y >> ja.orient.z;
    /*printf ("ja.orient.x===>%f",ja.orient.x);
    printf ("ja.orient.y===>%f",ja.orient.y);
    printf ("ja.orient.z===>%f",ja.orient.z);*/
    return stream;
}

int simpleRead(ifstream &stream, pose &p);

int main()
{
    ifstream file("file.txt");
    pose p;

    while (simpleRead(file, p)) {
        cout << p.time;
        for (int i = 0; i < p.angle.size(); i++) {
            cout << " " << p.angle[i].orient.x << " " << p.angle[i].orient.y << " " << p.angle[i].orient.z;
        }
        cout << "\n";
    }
    return 0;

}

int simpleRead(ifstream &stream, pose &p)
{
    // 1. Read time information
    stream >> p.time;

    if (stream.eof()) return 0;

    // 2. Read joint angle information
    joint_angle ja;
    vector<joint_angle> angles;
    char c;
    while ( stream >> skipws >> ja >> noskipws >> c ) {
        angles.push_back(ja);
        if (c == '\n' ) {
            break;
        }
    }

    p.angle = angles;
    return 1;
}

/* in file.txt:

-0.01 0.03 0.04 -0.5 0.6 0.8 0.3 -0.005 -0.003 -0.008
-0.03 0.05 0.06 -0.005  -0.2 0.3 0.8 1.02 1.03 1.04
*/

Works for me. My assumptions were that there were only one pose per line and that one joint angle was three floats. A pose was made up of multiple angles.

I do feel like I've been tricked into doing all the hard work... but maybe this will help you understand what I'm trying to say.

Hi thanks for the code
and i am so sorry for my questions.

NB: i found that the problem is in the file.txt , i did not see that each line start by ' ' not with number , for that it made to me problem in cout

thanks another times