matplotlib-cpp/examples/modern.cpp at master · fool404/matplotlib-cpp · GitHub

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#define _USE_MATH_DEFINES

#include <cmath>

#include "../matplotlibcpp.h"

using namespace std;

namespace plt = matplotlibcpp;

int main()

{

// plot(y) - the x-coordinates are implicitly set to [0,1,...,n)

//plt::plot({1,2,3,4});

// Prepare data for parametric plot.

int n = 5000; // number of data points

vector<double> x(n),y(n);

for(int i=0; i<n; ++i) {

double t = 2*M_PI*i/n;

x.at(i) = 16*sin(t)*sin(t)*sin(t);

y.at(i) = 13*cos(t) - 5*cos(2*t) - 2*cos(3*t) - cos(4*t);

}

// plot() takes an arbitrary number of (x,y,format)-triples.

// x must be iterable (that is, anything providing begin(x) and end(x)),

// y must either be callable (providing operator() const) or iterable.

plt::plot(x, y, "r-", x, [](double d) { return 12.5+abs(sin(d)); }, "k-");

// show plots

plt::show();

}

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