X coordinate of the event relative to the main frame's viewport in CSS pixels.

Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.

X radius of the touch area (default: 1.0).

Y radius of the touch area (default: 1.0).

Rotation angle (default: 0.0).

Force (default: 1.0).

The normalized tangential pressure, which has a range of [-1,1] (default: 0).

The plane angle between the Y-Z plane and the plane containing both the stylus axis and the Y axis, in degrees of the range [-90,90], a positive tiltX is to the right (default: 0)

The plane angle between the X-Z plane and the plane containing both the stylus axis and the X axis, in degrees of the range [-90,90], a positive tiltY is towards the user (default: 0).

The clockwise rotation of a pen stylus around its own major axis, in degrees in the range [0,359] (default: 0).

Identifier used to track touch sources between events, must be unique within an event.