Returns the rotation angle, in degrees, of the contact area ellipse defined by
Touch.radiusY. The value may be between 0 and 90. Together, these three values describe an ellipse that approximates the size and shape of the area of contact between the user and the screen. This may be a relatively large ellipse representing the contact between a fingertip and the screen or a small area representing the tip of a stylus, for example.
Note: This attribute has not been formally standardized. It is specified in the Touch Events – Level 2 Editor's Draft specification and not in Touch Events Recommendation. This attribute is not widely implemented.
var angle = touchItem.rotationAngle;
- The number of degrees of rotation to apply to the described ellipse to align with the contact area between the user and the touch surface.
The Touch.radiusX example includes an example of this property's usage.
|Touch Events – Level 2||Editor's Draft||Non-stable version.|
|Feature||Chrome||Firefox (Gecko)||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||39.0 -webkit