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Qt5 Python GUI Programming Cookbook

You're reading from   Qt5 Python GUI Programming Cookbook Building responsive and powerful cross-platform applications with PyQt

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788831000
Length 462 pages
Edition 1st Edition
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Author (1):
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B. M. Harwani B. M. Harwani
Author Profile Icon B. M. Harwani
B. M. Harwani
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Table of Contents (15) Chapters Close

Preface 1. Creating a User Interface with Qt Components 2. Event Handling - Signals and Slots FREE CHAPTER 3. Working with Date and Time 4. Understanding OOP Concepts 5. Understanding Dialogs 6. Understanding Layouts 7. Networking and Managing Large Documents 8. Doing Asynchronous Programming in Python 9. Database Handling 10. Using Graphics 11. Implementing Animation 12. Using Google Maps 13. Running Python Scripts on Android and iOS 14. Other Books You May Enjoy

Making a ball animate as per the specified curve

A curve with the desired shape and size is created and a ball is set to move along the shape of the curve on the click of a push button. In this recipe, you will understand how to implement a guided animation.

How to do it...

The setKeyValueAt method of the QPropertyAnimation class determines the direction of an animation. For guided animation, you invoke the setKeyValueAt method in a loop. The coordinates of the curve are passed to the setKeyValueAt method in the loop to make the ball animate along the curve. Here are the steps to make an object animate as desired:

  1. Create a new application based on the Dialog without Buttons template.
  2. Drag and drop a Label...
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