Grayhill Multi-Touch Ring Encoder - Software Development Kit V3.0 - Manual (Page 9)

Multi-Touch Ring Encoder Software Development Kit User’s Guide v3.0
© 2014 Grayhill, Inc., Confidential and Proprietary Page 9
Instinct Demo
The Instinct Page demonstrates the Instinct Gesture Recognition process by
allowing the user to change some of the settings that control how gestures
are recognized - and then allowing the user to observe how these changes
affect the output. After changing one of the settings, hit the “Apply
Changes” button to try out the new settings. Default settings can easily be
recovered by hitting the “Reset Defaults” button. The current settings are
retained for use with any of the other demo screens.
You can enable or disable any of the Event Gestures in Instinct through a
simple bit mask. Setting the check boxes next to the Event Gestures
assembles the bit mask and sets up Instinct to recognize only the checked
gestures. For more information on Event Gestures see the “Instinct
Introduction” section at the end of this document.
The Instinct page lists some of the Instinct parameters that can be used to
optimize the Gesture recognition process for a particular application. Not all
the settings are listed here, but they are a good example of some of the
settings available.
• The Down Delay is the time in 20mS intervals before the specific
number of current touches are declared down. This delay helps
eliminate "false positives" during transitional periods, i.e. when the
desired number of fingers is not yet in contact with the touch pad.
• The Max Tap Duration is the maximum number of 20mS intervals
that a given number of fingers can be "down" in order for the
"TAP" event to be reported.