Returns the rotation angle, in degrees, of the contact area ellipse defined by Touch.radiusX
and 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 Draft specification and not in Touch Events Recommendation. This attribute is not widely implemented.
var angle = touchItem.rotationAngle;
angle
The Touch.radiusX example includes an example of this property's usage.
Specification | Status | Comment |
---|---|---|
Touch Events – Level 2 | Draft | Non-stable version. |
Desktop | ||||||
---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
Basic support | 43 | ? | ? | ? | ? | ? |
Mobile | |||||||
---|---|---|---|---|---|---|---|
Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
Basic support | 43 | 43 | ? | ? | ? | Yes | ? |
© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/Touch/rotationAngle