Real time external signal plot in QT

[Wasee]

Hi everyone;
I need to plot external signal in QT how it is possible. Like I want to plot Radio Frequency in QT ?

thanks

[jsulm]

@Wasee https://doc.qt.io/qt-5/qtcharts-index.html
https://www.qcustomplot.com/

[Wasee]

@jsulm Hi;
Thanks Your valuable Response!
How is the best way to plot a complex number into qCustomPLot?

I have a complex number like this:

int main()
{
    const Complex test[] = { 1.0, 1.0, 1.0, 1.0, 0.0, 0.0, 0.0, 0.0 };
    CArray data(test, 8);
  
    // forward fft
    fft(data);
  
    std::cout << "fft" << std::endl;
    for (int i = 0; i < 8; ++i)
    {
        std::cout << data[i] << std::endl;
    }
  
    return 0;
}

My output is:

fft
(4,0)
(1,-2.41421)
(0,0)
(1,-0.414214)
(0,0)
(1,0.414214)
(0,0)
(1,2.41421)

The problem is: the output is not a simple vector. I want to plot just the real part of the complex number as Y-axis.
Thanks