PyQtGraph - Getting Children Rectangle of Image View

PyQtGraph - Getting Children Rectangle of Image View

pyqtgraph is a powerful library for interactive and real-time plotting in PyQt. The ImageView widget in pyqtgraph allows for the display of image data and provides interactive tools such as a histogram.

If you want to get the bounding rectangle of the children of ImageView, you can do so by accessing its view property (which provides the ViewBox object responsible for displaying the image) and then using its childrenBoundingRect() method.

Here's a simple example demonstrating how to get the children bounding rectangle of an ImageView:

import sys import pyqtgraph as pg import numpy as np from PyQt5.QtWidgets import QApplication app = QApplication(sys.argv) # Sample data: a 2D random image of size 100x100 data = np.random.rand(100, 100) # Create an ImageView widget view = pg.ImageView() # Show the ImageView view.show() # Display the sample data in the ImageView view.setImage(data) # After setting the image, get the bounding rectangle of the children of the ImageView rect = view.view.childrenBoundingRect() print("Children Bounding Rectangle:", rect) sys.exit(app.exec_())

In this example, after setting the image in the ImageView, we retrieve and print the bounding rectangle of its children. The childrenBoundingRect() method returns a QRectF object which represents the bounding box of the children items in the ViewBox of the ImageView.

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