As multitouch input systems are becoming more widespread, gestures are starting to be an important part of how we interact with computers and devices. Communicating these gestures to your users can be quite hard. To explain how to use a multitouch trackpad or Magic Mouse, Apple uses movies embedded right into the System Preferences application:
This approach works well for showing a few simple gestures, but if you’re trying to communicate a dozen complex gestures, movies become problematic. For complex gestures, it’s hard to see what exactly the person in the video is doing. Creating so many movies costs time and money. They require a lot of disk space, and they take away screen space.
Jitouch is a system extension which adds several additional multitouch gestures to Mac OS X. Some of these gestures are quite complex. The application uses labels such as «One-Fix-Press Two-SlideDown», «Two-Fix Index-Double-Tap» or «Index-Fix Middle-Slide-In» for each individual gesture. This is hard to understand.
Jitouch solves this problem quite cleverly. Mousing over a gesture produces a semi-transparent overlay in the shape of the input device which shows how the gesture works using animated grey dots. Here’s how this looks for Apple’s Magic Mouse:
It’s a clean, elegant, and simple solution to a problem that will become more and more common in the future.
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