plot.hpp File Reference

Matplotlib-style plotting via a gnuplot pipe. More...

#include <cstdio>
#include <stdexcept>
#include <string>
#include <utility>
#include <vector>

Go to the source code of this file.

Classes
struct	num::Series
	Ordered (x, y) series. More...
class	num::Gnuplot

Namespaces
namespace	num
namespace	num::plt
namespace	num::plt::detail

Typedefs
using	num::Point = std::pair< double, double >
	(x, y) data point.

Functions
void	num::apply_siam_style (Gnuplot &gp)
	Apply SIAM-style theme to a raw Gnuplot pipe.
void	num::set_loglog (Gnuplot &gp)
void	num::set_logx (Gnuplot &gp)
void	num::save_png (Gnuplot &gp, const std::string &filename, int w=900, int h=600)

Detailed Description

Matplotlib-style plotting via a gnuplot pipe.

Requires gnuplot in PATH (runtime only – no link-time dependency).

Quick start

#include "numerics.hpp"
 
num::Vector t = ..., x = ...;
 
num::plt::plot(t, x, "signal");
num::plt::title("Damped oscillator");
num::plt::xlabel("t");
num::plt::ylabel("x(t)");
num::plt::show();          // opens gnuplot window; blocks until closed
 
num::plt::savefig("out.png");   // alternative: save to PNG

Multiple series on one figure:

num::plt::plot(t, x, "Verlet");
num::plt::plot(t, y, "RK4");
num::plt::legend();
num::plt::show();

Definition in file plot.hpp.