yokaze / pyscience11

C++11 wrapper for NumPy, SciPy and Matplotlib using pybind11

Overview

pyscience11 is a C++11 wrapper for NumPy, SciPy and Matplotlib, that provides lightspeed access to their functionality.

#include <pybind11/embed.h>
#include <pybind11/pybind11.h>
#include <pyscience11/matplotlib.h>
#include <pyscience11/matplotlib/pyplot.h>
#include <pyscience11/numpy.h>
#include <pyscience11/scipy/special.h>

namespace py = pybind11;
namespace m11 = matplotlib11;
namespace n11 = numpy11;
namespace s11 = scipy11;

int main(void)
{
    py::scoped_interpreter interpreter;

    auto numpy = n11::import_numpy();
    auto scipy_special = s11::scipy::import_special();
    auto x = numpy.linspace(-2, 2, 1001, py::arg("dtype") = numpy.attr("float32"));
    auto y = scipy_special.erf(x);

    auto matplotlib = m11::import_matplotlib();
    matplotlib.use("TkAgg");

    auto pl = m11::matplotlib::import_pyplot();
    pl.plot(x, y);
    pl.show();

    return 0;
}

Install

This library is header-only, therefore nothing needs to be installed.

Following command could be helpful to place headers into system directory.

pip install pyscience11

Requirements

• pybind11

Contact

If you have any question about the library, feel free to contact me: https://github.com/yokaze

pyscience11's Issues

i dont find api numpy.c_

i use c++ and call numpy , but i dont find c++ version of numpy.c_.

How to use plt.imshow() for display cv::Mat images?

I was looking for an easy way to plot subplots of images in C++. But this was the best that I could find. I know that plt.imshow() is not used for subplts. I'd use plt.subplots. But first I'd like to figure out how to use plt.imshow() for displaying images in C++. How would I do this given that images in C++ are of type cv::Mat?

Thank you so much!