O'Reilly logo

Kivy – Interactive Applications and Games in Python - Second Edition by Roberto Ulloa

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Recognizing gestures – drawing with the finger

The previous section explained how to obtain string representations from gestures. The current section explains how to use those string representations to recognize the gestures. Kivy has some tolerance error in the gesture recognition, so you don't have to worry about repeating exactly the same stroke.

To start, we copied the strings that were generated from the strokes in the previous section into a new file called gestures.py. The strings are assigned to different variables. The following code corresponds to gestures.py:

212. # File Name: gestures.py
213. line45_str = 'eNq1VktuI0cM3fdFrM0I...
214. circle_str = 'eNq1WMtuGzkQvM+P2JcI/Sb5A9rrA...
215. cross_str = 'eNq1V9tuIzcMfZ8fSV5qiH...

Only the first ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required