Skip to content
Related Articles
Get the best out of our app
Open App

Related Articles

Add QT GUI to Python for plotting graphics

Improve Article
Save Article
Like Article
Improve Article
Save Article
Like Article

Qt framework (with QT Creator IDE) can be used to create a fancy interfaces for Python GUI application. Plotting graphics on a GUI is possible with pyqtgraph library.

Installing pyqtgraph –
There are several ways of installing pyqtgraph depending on your needs.

If you are using Anaconda you can install with:

conda install -c anaconda pyqtgraph

Or with pip command:

pip install pyqtgraph

Creation of plot widgets with QT Creator –

Add the buttons, text areas and other stuffs as usually done with QT Creator. To create a plot area you need to follow the steps:

  1. Add widget to UI and give it a proper name like “widgetSignal”
  2. Promote the widget to pyqtgraph

Load UI to Python –

  1. In your python code call the UI you created with QT Creator.
  2. Create a sin wave for plotting
  3. Draw the graph on UI

from PyQt5 import QtWidgets, uic
import sys
import numpy as np
class MainWindow(QtWidgets.QMainWindow):
    def __init__(self, *args, **kwargs):
        super(MainWindow, self).__init__(*args, **kwargs)
         # Load the UI Page
        self. ui = uic.loadUi('mainwindow.ui', self)
        # Create a sin wave
        x_time = np.arange(0, 100, 0.1);
        y_amplitude = np.sin(x_time)
        pltSignal = self.widgetSignal
        pltSignal.setLabel('left', 'Signal Sin Wave', units ='(V)')
        pltSignal.setLabel('bottom', 'Time', units ='(sec)')
        pltSignal.plot(x_time, y_amplitude, clear = True)
def main():
    app = QtWidgets.QApplication(sys.argv)
    window = MainWindow()
if __name__ == '__main__':


My Personal Notes arrow_drop_up
Last Updated : 19 Feb, 2020
Like Article
Save Article
Similar Reads
Related Tutorials