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GnuplotInterface is a class
that enables the user to easily plot values in Gnuplot. It handles
both the connection to Gnuplot and performs the window management as well.
It creates a text-file in which the location of the Gnuplot executable can
be entered (without recompiling the program).
The tool TestGnuplotInterface tests
the GnuplotInterface class.
I only got this interface to work under MacOS
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The one function that this class is built around is the popen function. This is a non-standard function to open a pipe. If this function is unknown under your programming environment, try either std::popen, std::_popen, std::__popen, popen, _popen or __popen.
Technical facts
./ToolTestGnuplotInterface/main.cpp
/*
Gnuplot Interface, a C++ class interface with Gnuplot.
Copyright (C) 2005 Richel Bilderbeek
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
//
// Gnuplot - a C++ class interface with Gnuplot
// V4.0
//
// Created by Richel Bilderbeek on Fri Jun 10 2005.
// Open source.
//
// Richel Bilderbeek
// Website: http://www.richelbilderbeek.nl
//
// V4.0: 19th March 2008: Conformized code
// V3.0: 23th September 2006: Implemented suggestion by Christoph Schmalz.
// According to Christoph it should work under Windows now.
// Made the code 100% Standard C++.
// V2.0: 12th September 2005: Got program to compile under Windows environment.
// Program is found NOT to run under Windows.
// Somebody has an idea how to open Gnuplot.exe ???
// V1.0: 10th June 2005: first version developed on Macintosh
//
//
// This class functions well at a Macintosh. Under Windows, the pipe to the
// Gnuplot executable (either MS-DOS or Windows executable) will not open.
// If you have an idea to solve this, please E-mail me.
//
//
// Feel free to contact me when:
// - YOU can get the program to run under Windows (and normally it wouldn't)
// - you encounter a compile error
// - you have made additional functionality
// - you have outsmarted me on this interface.
//
#include <iostream>
#include <vector>
#include <cmath>
//Yes, this #include is non-standard
//But it enables you to compile-and-run
//To do it correctly, add the file 'Gnuplot.cpp' to your project,
// and #include 'Gnuplot.h' instead.
#include "UnitGnuplotInterface.cpp"
int main()
{
Gnuplot myPlot;
std::vector<double> data1(1000);
std::vector<double> data2(1000);
for (int j=0; j!=1000; ++j)
{
const double jD = static_cast<double>(j);
data1[j]= std::sin(jD/100.0);
data2[j]= std::sin(jD/100.0);
}
for (int i=0; i!=10; ++i)
{
myPlot.ChangeWindow(i);
const double iD = static_cast<double>(i);
for (int j=0; j!=1000; ++j)
{
const double jD = static_cast<double>(j);
data1[j]*=std::sin(jD/(20.0-iD));
data2[j]*=std::sin(jD/(21.0-iD));
}
myPlot.Plot(data1);
myPlot.Plot(data2);
}
std::cin.get();
}
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