Plotter.h

//
// Created by Swapnil on 2/22/2018.
//

#include <iostream>
#include <fstream>
#include <vector>
#include <thread>
#include "GNUPlot.h"


#ifndef VECTORFIELDHISTOGRAMTESTING_PLOTTER_H
#define VECTORFIELDHISTOGRAMTESTING_PLOTTER_H

// TODO: Draw a thick line out of the center of the robot to indicate which 
//  direction it's traveling.  - Josh

class Plotter {
private:
  std::ofstream f;
  std::string fPath = "tempdata.dat";
  std::string header = "# x   y";
  GNUPlot plotter;

public:
  Plotter()
  {
    std::vector<std::string> script;
    f.open(fPath);
    f << header << std::endl;
    f.close();
    std::this_thread::sleep_for(std::chrono::milliseconds(100));


    script.push_back("set xrange [0:60];");
    script.push_back("set yrange [0:60];");
    script.push_back("plot \"" + fPath +  "\"" + "with points pointsize 7");

    plotter.open();
    plotter.execute(script);

  }

  ~Plotter()
  {
    plotter.flush();
    plotter.close();
  }

  void plot(const std::vector<discretePoint>& dataIn)
  {
    std::vector<std::string> script;
    script.push_back("replot");

    f.open(fPath);
    f << header << std::endl;
    for(int j = 0; j < dataIn.size(); j++)
    {
        f << dataIn[j].x << " " << dataIn[j].y << std::endl;
    }
    f.close();
    plotter.execute(script);
  }
};
#endif //VECTORFIELDHISTOGRAMTESTING_PLOTTER_H