#define _USE_MATH_DEFINES
#include <iostream>
#include <cmath>
#include "../matplotlibcpp.h"

namespace plt = matplotlibcpp;

int main() 
{
 // Prepare data.
 int n = 5000;
 std::vector<double> x(n), y(n), z(n), w(n,2);
 for(int i=0; i<n; ++i) {
 x.at(i) = i*i;
 y.at(i) = sin(2*M_PI*i/360.0);
 z.at(i) = log(i);
 }
 
 // Set the size of output image = 1200x780 pixels
 plt::figure_size(1200, 780);

 // Plot line from given x and y data. Color is selected automatically.
 plt::plot(x, y);

 // Plot a red dashed line from given x and y data.
 plt::plot(x, w,"r--");

 // Plot a line whose name will show up as "log(x)" in the legend.
 plt::named_plot("log(x)", x, z);

 // Set x-axis to interval [0,1000000]
 plt::xlim(0, 1000*1000);

 // Add graph title
 plt::title("Sample figure");

 // Enable legend.
 plt::legend();

 // save figure
 const char* filename = "./basic.png";
 std::cout << "Saving result to " << filename << std::endl;;
 plt::save(filename);
}