Grayhill Multi-Touch Control Wheel - Software Development Kit V3.0 - Manual (Page 18)

Multi-Touch Ring Encoder Software Development Kit User’s Guide v3.0
© 2014 Grayhill, Inc., Confidential and Proprietary Page 18
• X - average movement of one to five touch positions along the
x-axis
• Y - average movement of one to five touch positions along the
y-axis
• Z - corresponding movement in the z-axis (toward or away
from the user) by relative expansion (un-pinch) or contraction
(pinch) of from one to three touch positions
• X Angle - rotation angle around the x-axis that would
correspond to an average movement of one to five touch
positions along the y-axis
• Y Angle - rotation angle around the y-axis that would
correspond to an average movement of one to five touch
positions along the x-axis
• Z Angle - rotation angle about the z-axis of one to three touch
positions, about a point determined by the number of touches
In 3-D modes, as in 2-D modes, the developer has flexibility to qualify the
tracking data with the number of touches desired for a particular gesture.
For example; moving fingers along the x-axis produces both X data,
(panning along the x-axis) and Y Angle data (rolling an object about the y-
axis.) The developer may decide that two fingers should be used to
perform a pan along the x axis and three fingers will be used to rotate about
the y axis. It is then only a matter of applying the X data when two touch
positions are indicated and Y Angle data when three occur.
Additional Information
The Grayhill Instinct Gesture Recognition Library is available to our
customers with a signed Non-Disclosure Agreement. To request a form
please contact Grayhill at [email protected].