Struct libeyelink_sys::FSAMPLE

#[repr(C)]pub struct FSAMPLE {
    pub time: UINT32,
    pub type_: INT16,
    pub flags: UINT16,
    pub px: [f32; 2],
    pub py: [f32; 2],
    pub hx: [f32; 2],
    pub hy: [f32; 2],
    pub pa: [f32; 2],
    pub gx: [f32; 2],
    pub gy: [f32; 2],
    pub rx: f32,
    pub ry: f32,
    pub status: UINT16,
    pub input: UINT16,
    pub buttons: UINT16,
    pub htype: INT16,
    pub hdata: [INT16; 8],
}

@ingroup messaging \brief Floating-point sample

The EyeLink tracker measures eye position 250, 500, 1000 or 2000 times per second depending on the tracking mode you are working with, and computes true gaze position on the display using the head camera data. This data is stored in the EDF file, and made available through the link in as little as 3 milliseconds after a physical eye movement. Samples can be read from the link by eyelink_get_float_data() or eyelink_newest_float_sample().

If sample rate is 2000hz, two samples with same time stamp possible. If SAMPLE_ADD_OFFSET is set on the flags, add .5 ms to get the real time. Convenient FLOAT_TIME can also be used.

Fields

time: UINT32

< time of sample

type_: INT16

< always SAMPLE_TYPE

flags: UINT16

< flags to indicate contents

px: [f32; 2]

< pupil x

py: [f32; 2]

< pupil y

hx: [f32; 2]

< headref x

hy: [f32; 2]

< headref y

pa: [f32; 2]

< pupil size or area

gx: [f32; 2]

< screen gaze x

gy: [f32; 2]

< screen gaze y

rx: f32

< screen pixels per degree

ry: f32

< screen pixels per degree

status: UINT16

< tracker status flags

input: UINT16

< extra (input word)

buttons: UINT16

< button state & changes

htype: INT16

< head-tracker data type (0=none)

hdata: [INT16; 8]

< head-tracker data (not prescaled)

Trait Implementations

impl Clone for FSAMPLE

fn clone(&self) -> FSAMPLE

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for FSAMPLE

impl Debug for FSAMPLE

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FSAMPLE

fn default() -> FSAMPLE

Returns the "default value" for a type.