Grayhill Multi-Touch Control Wheel - Software Development Kit V3.0 - Manual (Page 7)

Multi-Touch Ring Encoder Software Development Kit User’s Guide v3.0
© 2014 Grayhill, Inc., Confidential and Proprietary Page 7
2D Demo
The 2D demo screen is an example application that illustrates how easy it is
to position and size an image for viewing using the MTCW. Use a single
finger (or two fingers) on the touchpad to pan the image in the X or Y
direction. Use two fingers in a pinching or un-pinching motion to control the
zoom level. Spin two fingers about each other to rotate the image.
In this example application, any of these gestures can be performed
simultaneously to quickly and efficiently position the image. If the fingers
are released from the touchscreen during a gesture, the object will continue
the gesture’s movement with virtual momentum. This is a more efficient
method of positioning especially when large images are used.
Also in this example, a different picture can be selected by flipping a single
finger to the left or right as if turning a page.
All of the gestures shown on the 2D screen application example can be
easily configured and recognized using the Instinct Gesture Recognition
Library. The gestures implemented and corresponding actions are only an
example of a typical 2D image application. The library is very flexible and
allows many different configurations for many different applications. The
Instinct Gesture Recognition Library is available license-free for Grayhill
customers. For further information about Instinct, please refer to
“Grayhill’s Instinct Gesture Recognition Library” section at the end of
this document.