Ink.Point

  • Ink.Point represents a single touch point with horizontal and vertical coordinates.

  • New points can be created using the create method with or without specifying a timestamp.

  • The getTimestamp, getX, and getY methods provide access to the time recorded, horizontal coordinate, and vertical coordinate of the point respectively.
public static abstract class Ink.Point extends Object
implements Point

A single touch point (horizontal and vertical coordinates).

Public Constructor Summary

Point()

Public Method Summary

static Ink.Point
create(float x, float y)
Creates a new point without specifying timestamp.
static Ink.Point
create(float x, float y, long timestamp)
Creates a new point.
abstract Long
getTimestamp()
Time when the point was recorded, in milliseconds.
abstract float
getX()
Horizontal coordinate.
abstract float
getY()
Vertical coordinate.

Inherited Method Summary

Public Constructors

public Point ()

Public Methods

public static Ink.Point create (float x, float y)

Creates a new point without specifying timestamp.

This method should only be used when it is not feasible to include the timestamp information, as the recognition accuracy might degrade.

Scales on both dimensions are identical: a displacement of 1 horizontally or vertically must represent the same distance, as seen by the user.

Spatial origin can be arbitrary as long as it is consistent for a given ink.

Parameters
x horizontal coordinate. Increases to the right.
y vertical coordinate. Increases downward.

public static Ink.Point create (float x, float y, long timestamp)

Creates a new point.

Scales on both dimensions are identical: a displacement of 1 horizontally or vertically must represent the same distance, as seen by the user.

Spatial and temporal origins can be arbitrary as long as they are consistent for a given ink.

Parameters
x horizontal coordinate. Increases to the right.
y vertical coordinate. Increases downward.
timestamp time when the point was recorded, in milliseconds

public abstract Long getTimestamp ()

Time when the point was recorded, in milliseconds.

public abstract float getX ()

Horizontal coordinate. Increases to the right.

public abstract float getY ()

Vertical coordinate. Increases to the right.