demoPrompt11.b_ChatGPT+Matplotlib.py

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QVBoxLayout, QWidget, QPushButton
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
import numpy as np

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setWindowTitle("Matplotlib with PyQt")
        self.setGeometry(100, 100, 800, 600)

        # Create a central widget
        central_widget = QWidget()
        self.setCentralWidget(central_widget)

        # Create a layout for the central widget
        layout = QVBoxLayout()
        central_widget.setLayout(layout)

        # Create a Matplotlib figure
        self.figure = Figure(figsize=(5, 4), dpi=100)
        self.canvas = FigureCanvas(self.figure)
        layout.addWidget(self.canvas)

        # Create a button to update the plot
        button = QPushButton("Update Plot")
        button.clicked.connect(self.update_plot)
        layout.addWidget(button)

        # Initial plot
        self.update_plot()

    def update_plot(self):
        # Clear the previous plot
        self.figure.clear()

        # Generate data
        x = np.linspace(0, 10, 100)
        y = np.sin(x)

        # Plot data
        ax = self.figure.add_subplot(111)
        ax.plot(x, y)
        ax.set_xlabel('X-axis')
        ax.set_ylabel('Y-axis')
        ax.set_title('Matplotlib Plot')

        # Update canvas
        self.canvas.draw()

if __name__ == '__main__':
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec_())