org.gephi.appearance.api

Class Interpolator.BezierInterpolator

java.lang.Object

org.gephi.appearance.api.Interpolator

org.gephi.appearance.api.Interpolator.BezierInterpolator

Enclosing class:

Interpolator

public static class Interpolator.BezierInterpolator
extends Interpolator

Bezier curve interpolator.

Basically, a cubic Bezier curve is created with start point (0,0) and endpoint (1,1). The other two control points (px1, py1) and (px2, py2) are given by the user, where px1, py1, px1, and px2 are all in the range [0,1].

Nested Class Summary

Nested classes/interfaces inherited from class org.gephi.appearance.api.Interpolator

Interpolator.BezierInterpolator

Field Summary

Fields inherited from class org.gephi.appearance.api.Interpolator

LINEAR, LOG2

Constructor Summary

Constructors

Constructor and Description
BezierInterpolator(float px1, float py1, float px2, float py2) constructor -- cubic bezier curve will be represented by control points (0,0) (px1,py1) (px2,py2) (1,1) -- px1, py1, px2, py2 all in range [0,1]

Method Summary

Modifier and Type	Method and Description
Point2D	getControl1()
Point2D	getControl2()
float	interpolate(float x) get the y-value of the cubic bezier curve that corresponds to the x input

Methods inherited from class org.gephi.appearance.api.Interpolator

newBezierInterpolator

Methods inherited from class java.lang.Object

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

Constructor Detail

BezierInterpolator

public BezierInterpolator(float px1,
                          float py1,
                          float px2,
                          float py2)

constructor -- cubic bezier curve will be represented by control points (0,0) (px1,py1) (px2,py2) (1,1) -- px1, py1, px2, py2 all in range [0,1]

Parameters:

px1 - is x-coordinate of first control point, in range [0,1]

py1 - is y-coordinate of first control point, in range [0,1]

px2 - is x-coordinate of second control point, in range [0,1]

py2 - is y-coordinate of second control point, in range [0,1]

Method Detail

getControl1

public Point2D getControl1()

getControl2

public Point2D getControl2()

interpolate

public float interpolate(float x)

get the y-value of the cubic bezier curve that corresponds to the x input

Specified by:

interpolate in class Interpolator

Parameters:

x - is x-value of cubic bezier curve, in range [0,1]

Returns:

corresponding y-value of cubic bezier curve -- in range [0,1]