pyqt QCustomPlot Dynamic graph

To create a dynamic graph using QCustomPlot in PyQt, you can follow these steps:

1. Import the necessary modules:

from PyQt5.QtWidgets import QApplication, QMainWindow
from PyQt5.QtCore import QTimer
import numpy as np
from qcustomplot import QCustomPlot, QCPGraphData

2. Create your main window and add a QCustomPlot widget:

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Dynamic Graph")
        self.plot = QCustomPlot(self)
        self.setCentralWidget(self.plot)

3. Create a function to update the graph:

def update_plot(self):
    # Generate new data
    x = np.linspace(0, 10, 100)
    y = np.sin(x)

    # Clear previous data
    self.plot.clearGraphs()

    # Add new data to graph
    graph = self.plot.addGraph()
    graph.setData([QCPGraphData(xi, yi) for xi, yi in zip(x, y)])
    self.plot.rescaleAxes()

    # Refresh the plot
    self.plot.replot()

4. Create a QTimer to call the update function at a set interval:

timer = QTimer(self)
timer.timeout.connect(self.update_plot)
timer.start(1000) # Update every second

5. Run the application:

if __name__ == '__main__':
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec_()

This will create a window with a QCustomPlot widget that updates with new data every second. You can modify the update function to generate new data in the format that you need for your application.