These classes written in C++11 provide functions for easy plotting one/two arguments functions using data arrays and syntax parser. Classes are based on MathGl library and act like wrappers for the most common MathGl functions to simplify the process of visualization
- Add source files to your project from the MathGL_module/src and MathGL_module/include folders
- Install the original MathGl library . There is an instruction on the website, how to compile it from source.
- Get the MathGL library (version with the QT) installed on the computer using Synaptic Packet Manager. Find mathgl and mathgl-dev packages and get them
- You are ready to go. To compile your program use
g++ your_files_and_compilation_flags functionArg.cpp mathGL_Graphics.cpp mathGL_Graphics_Object.cpp -lmgl -lmgl-qt -std=gnu++11
- You can try to use precompiled binaries form the Binary versions folder (from the repo). In this folder you can find versions for the Visual Studio 2012, 2013, 2015, 2017 under Windows 7.
- Make a C++ project and link it to the MathGl binary version. How to link a library you can easily find on the Internet. Don`t forget to copy the bin folder contents to the folder with your executable
- Change the build type of your project to Release if you use precompiled binaries
- Create a plotting object that inherits from MathGLGraphicsObject
- Create grapher - MathGLGraphics
- Setup grapher if needed
- Link grapher to the object you are going to plot
- Plot with QT window or save to file
Code example:
#include "../include/mathGL_graphics.h"
#include <cmath>
#include <list>
#include <string>
/**
*
* Example of plotting one argument function f(x) = sin(x) + 1,
* x [-10,10],
* Dots amount : 100
*/
double f(const double &x)
{
return sin(x) + 1;
}
int main()
{
MathGLGraphics gr;
OneArgumentFunction_Plot obj(f, FunctionArg(-10, 10, 100));
gr.parametres()->setRanges(-10, 10, 0, 2);
gr.link(&obj);
gr.plotQT("sin(x)");
return 0;
}
Result:
