package brr

The type for PointerEvent objects.

id p is the identifier of the pointer causing the event (ids can get recycled but they are unique among active pointers).

width p is the width in CSS pixels of the contact geometry of the pointer.

height p is the height in CSS pixels of the contact geometry of the pointer.

pressure p is the normalized pressure of the pointer in the range 0. to 1.. For things like mices this is 0.5 when buttons are depressed and 0. otherwise. All pointerup events have that to 0..

tanganital_pressure p is the normalized tangential pressure of the pointer in the range -1. to 1. with 0. the neutral position of the control. If the hardware has no support this must be 0..

tilt_x p is the plane angle in degree in the range -90 to 90 between the Y-Z plane and the plane containing the transducer axis and the Y axis. Positive tilt is to the right and 0 if unsupported.

tilt_y p is the plane angle in degree in the range -90 to 90 between the X-Z plane and the plane containing the transducer axis and the X axis. Positive tilt is towards the user and 0 if unsupported.

twist p is the rotation in degree in the range 0;359 of the transducer around its own major axis. If unsupported this must be 0.

altitude_angle p is the altitude in radians of the transducer in the range 0. to π/2 where 0 is parallel to the surface X-Y plane and π/2 is perpendicular to the surface. If unsupported this must be π/2.

azimuth_angle p is the azimuth angle in radians in the range 0. to 2π where 0 represents a transducer whose cap is pointing in the direction of increasing X values on the XY-plane. If unsupported must be 0.

type' p is the pointer type.

is_primary p is true if the pointer represents the primary pointer.

get_coalesced_events p is the list of events that were coalesced into p.

get_predicted_events p is the list of predicted events for p.