I would like to know the differences between QtChart/s and pyqtgraph, especially performance. I searched on the web but I did not found information about this topic.
I know that pyqtgraph is NumPy based and NumPy is a very optimized package because the core was written in C and Fortran languages. But, what about QtChart? It is written in C++ and also should be efficient (I suppose).
To take an example, I developed an application to plot data with pyQt+pyqtgraph. This data is acquired from a device with 2 s of sampling rate, so at the end of the day, there are 60x60x24/2=40k points approx to plot. With this amount of data, zooming in/out is slow or very slow depending on hardware, and can be intractable if we choose a wide pen to paint lines/points.
So, I have some questions on my head about this topic. Is QtChart faster than pyqtgraph? (or vice versa), Why pyqtgraph seem to be more popular than QtChart? Has QtChart/s the same license as Pyside/PyQt?
Comments and experience are welcome! Thanks in advance!