gnuplot-cpp/include/gnuplot.h at master · LucaCiucci/gnuplot-cpp · GitHub

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* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU Lesser General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU Lesser General Public License for more details.

* You should have received a copy of the GNU Lesser General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

* URL: https://github.com/martinruenz/gnuplot-cpp

* AUTHOR: Martin Rünz, 2015

#pragma once

#include <stdio.h>

#include <string>

#include <vector>

#include <iostream>

#include <fstream>

#if defined(_MSC_VER) || defined(_WIN32)

#include <windows.h>

#define _MR_GPCPP_POPEN _popen

#define _MR_GPCPP_PCLOSE _pclose

#else

#define _MR_GPCPP_POPEN popen

#define _MR_GPCPP_PCLOSE pclose

#endif

class GnuplotPipe {

public:

inline GnuplotPipe(bool persist = true) {

std::cout << "Opening gnuplot... ";

pipe = _MR_GPCPP_POPEN(persist ? "gnuplot -persist" : "gnuplot", "w");

if (!pipe)

std::cout << "failed!" << std::endl;

else

std::cout << "succeded." << std::endl;

}

inline virtual ~GnuplotPipe() {

if (pipe) _MR_GPCPP_PCLOSE(pipe);

}

void sendLine(const std::string& text, bool useBuffer = false) {

if (!pipe) return;

if (useBuffer)

buffer.push_back(text + "\n");

else

fputs((text + "\n").c_str(), pipe);

}

void sendEndOfData(unsigned repeatBuffer = 1) {

if (!pipe) return;

for (unsigned i = 0; i < repeatBuffer; i++) {

for (auto& line : buffer) fputs(line.c_str(), pipe);

fputs("e\n", pipe);

}

fflush(pipe);

buffer.clear();

}

void sendNewDataBlock() {

sendLine("\n", !buffer.empty());

}

void writeBufferToFile(const std::string& fileName) {

std::ofstream fileOut(fileName);

for (auto& line : buffer) fileOut << line;

fileOut.close();

}

private:

GnuplotPipe(GnuplotPipe const&) = delete;

void operator=(GnuplotPipe const&) = delete;

FILE* pipe;

std::vector<std::string> buffer;

};

#undef _MR_GPCPP_POPEN

#undef _MR_GPCPP_PCLOSE

gnuplot-cpp/include/gnuplot.h at master · LucaCiucci/gnuplot-cpp · GitHub

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