IT. Expert System.

Enclosing class:

VelocityTracker

public static final class VelocityTracker.Estimator
extends Object

• Field Summary

  Fields

  Modifier and Type	Field and Description
  float	confidence Confidence (coefficient of determination), between 0 (no fit) and 1 (perfect fit).
  int	degree Polynomial degree, or zero if only position information is available.
  float[]	xCoeff Polynomial coefficients describing motion in X.
  float[]	yCoeff Polynomial coefficients describing motion in Y.

• Constructor Summary

  Constructors

  Constructor and Description
  VelocityTracker.Estimator()

• Method Summary

  Methods

  Modifier and Type	Method and Description
  float	estimateX(float time) Gets an estimate of the X position of the pointer at the specified time point.
  float	estimateY(float time) Gets an estimate of the Y position of the pointer at the specified time point.
  float	getXCoeff(int index) Gets the X coefficient with the specified index.
  float	getYCoeff(int index) Gets the Y coefficient with the specified index.

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• Field Detail

  • xCoeff

    public final float[] xCoeff

    Polynomial coefficients describing motion in X.

  • yCoeff

    public final float[] yCoeff

    Polynomial coefficients describing motion in Y.

  • degree

    public int degree

    Polynomial degree, or zero if only position information is available.

  • confidence

    public float confidence

    Confidence (coefficient of determination), between 0 (no fit) and 1 (perfect fit).

• Constructor Detail

  • VelocityTracker.Estimator

    public VelocityTracker.Estimator()

• Method Detail

  • estimateX

    public float estimateX(float time)

    Gets an estimate of the X position of the pointer at the specified time point.

    Parameters:

    time - The time point in seconds, 0 is the last recorded time.

    Returns:

    The estimated X coordinate.

  • estimateY

    public float estimateY(float time)

    Gets an estimate of the Y position of the pointer at the specified time point.

    Parameters:

    time - The time point in seconds, 0 is the last recorded time.

    Returns:

    The estimated Y coordinate.

  • getXCoeff

    public float getXCoeff(int index)

    Gets the X coefficient with the specified index.

    Parameters:

    index - The index of the coefficient to return.

    Returns:

    The X coefficient, or 0 if the index is greater than the degree.

  • getYCoeff

    public float getYCoeff(int index)

    Gets the Y coefficient with the specified index.

    Parameters:

    index - The index of the coefficient to return.

    Returns:

    The Y coefficient, or 0 if the index is greater than the degree.